!version: $Revision: 1.28 $ !date: Wed Jun 11 00:15:13 EDT 2008 !saved-by: shuly !autogenerated-by: DAG-Edit version 1.000-beta8 ! !Gene Ontology definitions ! term: 0 germination goid: PO:0007057 definition: The resumption of growth by the embryo in a seed. definition_reference: ISBN:047124529 definition_reference: GR:ap term: 1 floral meristem visible goid: PO:0007601 definition: Stage of flower development marked by the emergence of the floral meristem on the flank of the inflorescence meristem. definition_reference: POC:curators term: 1 leaf initiation stage goid: PO:0001051 definition: The earliest histological evidence of leaf initiation, i.e, a change in the orientation of cell division both in the epidermis and in internal layers of the shoot meristem occurs at this stage (Poethig S, 1997, Plant Cell 9:1077-1087). definition_reference: PMID:9254931 comment: Cells in the primordium are not yet differentiated. term: 1 main shoot growth goid: PO:0007112 definition: The stage at which vegetative structures are being produced by SAM. definition_reference: Poc:curators comment: In monocots each leaf stage is defined according to the uppermost leaf whose collar is visible (Handbook of plant and crop physiology) term: 1 pattern formation goid: PO:0007056 definition: trichome initiation stage that determine numbers of trichome are formed definition_reference: GR:cwt term: 1 root primordium formation goid: PO:0007505 definition: The stage at which root primordium originates and develops at specific locations in embryonic and post embryonic roots. definition_reference: GR:ap term: 2 endoreduplication goid: PO:0007058 definition: the stage trichome nuclei continue to replicate their DNA after mitosis and cytokinesis have ceased, and as a consequence have a DNA content much greater than 2C definition_reference: GR:cwt term: 2 floral meristem notched goid: PO:0007602 definition: Stage of floral development that begins when the floral meristem becomes demarcated from the inflorescence meristem by a slight indentation. definition_reference: POC:curators term: 2 formation of axillary shoot goid: PO:0007073 definition: The stage at which the axillary shoots are forming. definition_reference: Poc:curators term: 2 leaf expansion stage goid: PO:0001052 definition: Stage of leaf development which begins when cell differentiation and cell expansion occurs and finishes when the leaf reaches its full size.\n definition_reference: TAIR:ki term: 2 root meristem formation goid: PO:0007527 definition: The stage at which the root meristem becomes evident. definition_reference: GR:ap comment: Characteristic differences in meristem organization have been related to taxonomic groups. Terms for developmental zones formation are available in the oboslete node, and they will be reintroduced in the ontology when there is a specific user request for them. term: 2.00 main shoot only goid: PO:0007061 definition: OBSOLETE definition_reference: GR:ap term: 2.01 main shoot and axillary shoots visible at one node goid: PO:0007087 definition: The stage at which main shoot and axillary shoot(s) at one node is (are) visible. definition_reference: Poc:curators term: 2.02 main shoot and axillary shoots visible at two nodes goid: PO:0007071 definition: The stage at which main shoot and axillary shoots at two nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.03 main shoot and axillary shoots visible at three nodes goid: PO:0007080 definition: The stage at which main shoot and axillary shoots at three nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.04 main shoot and axillary shoots visible at four nodes goid: PO:0007088 definition: The stage at which main shoot and axillary shoots at four nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.05 main shoot and axillary shoots visible at five nodes goid: PO:0007093 definition: The stage at which main shoot and axillary shoots at five nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.06 main shoot and axillary shoots visible at six nodes goid: PO:0007118 definition: The stage at which main shoot and axillary shoots at six nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.07 main shoot and axillary shoots visible at seven nodes goid: PO:0007122 definition: The stage at which main shoot and axillary shoots at seven nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.08 main shoot and axillary shoots visible at eight nodes goid: PO:0007077 definition: The stage at which main shoot and axillary shoots at eight nodes are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 2.09 main shoot and axillary shoots visible at nine or more nodes goid: PO:0007110 definition: The stage at which main shoot and axillary shoots at nine nodes or more are visible. definition_reference: GR:ap comment: The axillary shoot can be a single shoot or a pair of axillary shoots at each node. term: 3 branch formation goid: PO:0007059 definition: ths stage trichome develops branches definition_reference: GR:cwt term: 3 establishment of tissue systems goid: PO:0007525 definition: The stage at which distinct tissues become organized. definition_reference: GR:ap term: 3 floral organ development stages goid: PO:0007600 definition: Stages of development of floral organs defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: 3 inflorescence visible goid: PO:0007047 definition: The stage at which plant is producing inflorescence(s). definition_reference: Poc:curators term: 3 leaf fully expanded goid: PO:0001053 definition: Stage of leaf development when leaf is fully expanded. definition_reference: TAIR:ki term: 3 rapid growth stage goid: PO:0007004 definition: OBSOLETE.The stage at which the plant grows rapidly by either or both stem elongation and expansion of the rosette/foliage. definition_reference: GR:ap comment: Many stages like leaf production PO:0007112, axillary shoot formation PO:0007073, inflorescence PO:0007047 often overlap with this stage term: 4 anthesis goid: PO:0007616 definition: The phase of a flower when pollen is presented and/or the stigma is receptive. definition_reference: APWeb:glossary term: 4 flowering goid: PO:0007016 definition: The stage at which any flower(s) on the plant are open. definition_reference: Poc:curators comment: This stage refers to the whole plant. term: 4 growth directionality goid: PO:0007135 definition: the stage involved in the directionality of expansion growth definition_reference: GR:cwt term: 4 leaf senescence stage goid: PO:0001054 definition: The final stage of leaf development when the leaf ceases metabolic activity and senesces. definition_reference: TAIR:tb term: 4 root elongation goid: PO:0001031 definition: The stage at which root is elongating. definition_reference: POC:cuartors comment: In some plant species this stage is subdivided into distal and proximal elongating zones. term: 5 fruit formation goid: PO:0007042 definition: Formation of the seed-bearing structure after flowering. definition_reference: Poc:curators comment: Although the use of stages like milk or particular fruit sizes properly refer to the development of an individual fruit, they are commonly used as here to extrapolate to a growth of a whole plant or a group of plants. term: 5 post anthesis goid: PO:0007617 definition: The phase of a flower after the pollen is presented and/or the stigma is receptive. definition_reference: POC:curators term: 5 root hair formation goid: PO:0007519 definition: The stage at which the root hairs becomes evident. definition_reference: GR:ap term: 5.02 20% of inflorescence emerged. goid: PO:0007075 definition: OBSOLETE definition_reference: GR:ap term: 5.04 40% of inflorescence emerged goid: PO:0007102 definition: OBSOLETE definition_reference: GR:ap term: 5.06 60% of inflorescence emerged goid: PO:0007105 definition: OBSOLETE definition_reference: GR:ap term: 5.08 80% of inflorescence emerged goid: PO:0007107 definition: OBSOLETE definition_reference: GR:ap term: 6 ripening goid: PO:0007010 definition: Maturation of the fruit. definition_reference: Poc:curators comment: Although the use of stages like dough or particular ripening stages properly refer to the development of an individual fruit, they are commonly used as here to extrapolate to a growth of a whole plant or a group of plants. term: 6.01 10% of flowers open goid: PO:0007121 definition: OBSOLETE definition_reference: GR:ap term: 6.03 30% of flowers open goid: PO:0007124 definition: OBSOLETE definition_reference: GR:ap term: 6.04 40% of flowers open goid: PO:0007125 definition: OBSOLETE definition_reference: GR:ap term: 7-8 fruit formation and maturation goid: PO:0007035 definition: OBSOLETE: This stage refers to the developmental and physiological changes that occur in the whole plant after fertilization and during fruit development, maturation, and provisioning. definition_reference: Poc:curators comment: We have chosen to use fruit size as a marker of these physiological processes to represent the whole plant growth stage. term: 7.02 fruit size 20% goid: PO:0007126 definition: OBSOLETE definition_reference: GR:ap term: 7.04 fruit size 40% goid: PO:0007127 definition: OBSOLETE definition_reference: GR:ap term: 7.06 fruit size 60% goid: PO:0007128 definition: OBSOLETE definition_reference: GR:ap term: 7.08 fruit size 80% goid: PO:0007129 definition: OBSOLETE definition_reference: GR:ap term: A archesporial cells visible goid: PO:0001005 definition: An initial stage during which archesporial cells arise in four corners of L2 layer. Change in shape of primordia to more oval. definition_reference: TAIR:ki term: A megaspore mother cell enlarges goid: PO:0007623 definition: The stage of megagametophyte development when the megaspore mother cell enlarges. definition_reference: POC:curators term: A microsporogenous mass stage goid: PO:0001011 definition: An initial stage during which the archesporial cells divide to give rise to primary parietal and sporogenous cells. definition_reference: TAIR:ki term: A vegetative growth goid: PO:0007134 definition: Stage of growth when vegetative structures are being produced. definition_reference: Poc:curators term: A zygotic stage goid: PO:0001097 definition: One cell stage that results from fertilization. definition_reference: PO:KI term: A1 root initials formation stage goid: PO:0007535 definition: OBSOLETE. After the formation of the apical-basal axis in the young embryo, the central and basal portion give rise to the root meristem. definition_reference: GR:ap comment: Endogenously formed embryonic roots are exclusive to Poaceae.\nThis term has been obsoleted to keep the structure simple. term: A2 root initials differentiation stage goid: PO:0007512 definition: OBSOLETE. The root initials differentiate by cell division and cell expansion. definition_reference: GR:ap comment: Crown root stages are based on rice plant. This term has been obsoleted to keep the structure simple. term: A2.1 root intials differntiation of primary roots goid: PO:0007503 definition: OBSOLETE. The root initials divide repeatedly and add more cells definition_reference: GR:ap comment: This term has been obsoleted to keep the structure simple. term: A2.2 root initials differentiation of lateral roots goid: PO:0007528 definition: OBSOLETE. Radial expansion followed by subsequent periclinal divisions forms the pericycle-derived tissues. definition_reference: GR:ap comment: This term has been obsoleted to keep the structure simple. term: A2.3 founder cell derivatives of lateral root goid: PO:0007530 definition: OBSOLETE. Radial expansion followed by subsequent periclinal divisions forms the isodiametric founder cell tissues. definition_reference: GR:ap comment: This term has been obsoleted to keep the structure simple. term: A2.4 root initials differentiation of crown roots goid: PO:0007534 definition: OBSOLETE. Initial cells of crown root primordium divide anticlinally and periclinally to form epidermis-endodermis initial, vascular-cylinder initial and root cap initial. definition_reference: GR:ap comment: Crown root stages are based on rice plant. This term has been obsoleted to keep the structure simple. term: androecium developmental stages goid: PO:0007605 definition: Stages of development of the androecium defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: anther developmental stages goid: PO:0001004 definition: Stages of development of the anther defined by characteristic morphological, cytological, histological or other visible features. definition_reference: POC:fz term: B enlarged microsporocyte stage goid: PO:0001006 definition: Stage during which the microsporocytes become conspicuous. definition_reference: TAIR:ki term: B formation of primary parietal and sporogenous cells goid: PO:0001018 definition: Stage during which the primary parietal and primary sporogenous layers are derived from archesporial cells. definition_reference: TAIR:ki term: B meiosis of megaspore mother cell goid: PO:0007624 definition: The stage of megagametophyte development when the megaspore mother cell undergoes meiosis. definition_reference: POC:curators term: B proembryo stage goid: PO:0001180 definition: Early embryo development from two cell stage to a multicellular globular stage before three main tissue systems are differentiated. definition_reference: TAIR:ki definition_reference: APWeb:glossary term: B reproductive growth goid: PO:0007130 definition: Stage of growth when reproductive structures are being produced. definition_reference: Poc:curators term: B1 primary root meristem formation goid: PO:0007524 definition: OBSOLETE. The stage at which the meristem of the primary root becomes evident. definition_reference: GR:ap term: B2 lateral root meristem formation goid: PO:0007539 definition: OBSOLETE. The stage at which the meristem of the lateral root becomes evident. definition_reference: GR:ap term: B3 crown root meristem formation goid: PO:0007514 definition: OBSOLETE. The stage at which the meristem of the crown root becomes evident. definition_reference: GR:ap term: BO.00 booting begins goid: PO:0007051 definition: Booting has just begun. definition_reference: ISBN:3826331524 definition_reference: GR:ap term: BO.01 early boot stage goid: PO:0007018 definition: The flag leaf sheath has started to extend. definition_reference: GR:ap definition_reference: ISBN:3826331524 comment: In rice the flag leaf sheath is 5cm out of the penultimate leaf sheath. Upper part of the stem is slightly thickened. term: BO.02 mid boot stage goid: PO:0007044 definition: The flag leaf sheath is just visibly swollen. definition_reference: ISBN:3826331524 definition_reference: GR:ap comment: In rice the flag leaf sheath is 5-10cm out of the penultimate leaf sheath. term: BO.03 late boot stage goid: PO:0007013 definition: The flag leaf sheath swollen. definition_reference: GR:ap definition_reference: ISBN:3826331524 comment: In rice the flag leaf sheath is more than 10cm out of the penultimate leaf sheath. term: BO.04 flag leaf sheath opening goid: PO:0007028 definition: The flag leaf sheath starts opening. definition_reference: ISBN:3826331524 term: BO.05 flag leaf sheath opened goid: PO:0007019 definition: The first awns are visible and the flag leaf sheath has opened. definition_reference: ISBN:3826331524 definition_reference: GR:ap comment: Awns will be visible only in those species and varieties where they are known to be present. term: booting goid: PO:0007014 definition: Stage characterized by a swelling of the flag leaf sheath, caused by an increase in the size of the inflorescence as it grows up the leaf sheath. definition_reference: GR:pj term: C callose wall formation in pollen mother cells goid: PO:0001008 definition: Stage during which diploid pollen mother cells become separated from each other and from tapetum by a callose wall. definition_reference: TAIR:ki term: C four anther lobes formed goid: PO:0001025 definition: Stage during which the four-lobed anther pattern with two developing stomium regions (notch) are formed. definition_reference: TAIR:ki term: C globular stage goid: PO:0001185 definition: During this stage the embryo proper retains radial symmetry (increasing in diameter), and three main tissue systems are established. definition_reference: TAIR:ki term: C senescence goid: PO:0007017 definition: The processes that occur near the end of a plant's active life that are associated with the dismantling of cell components and membranes, loss of functional chloroplasts, and an overall decline in metabolism. definition_reference: Poc:curators term: C tetrad of megaspores goid: PO:0007625 definition: The product of meiosis of the megaspore mother cell. definition_reference: POC:curators term: C3.1 metaxylem differentiation of root. goid: PO:0007521 definition: OBSOLETE. Differentiation begins with the enlargement and vacuolation of the tracheary elements of the metaxylem. definition_reference: GR:ap comment: These stages are based on Arabidopsis plant. This term has been obsoleted to keep the structure simple. term: C3.2 maturation of phloem elements in root. goid: PO:0007537 definition: OBSOLETE. The first phloem elements matures. definition_reference: GR:ap comment: This term has been obsoleted to keep the structure simple. term: C3.3 maturation of protoxylem elements in root. goid: PO:0007533 definition: OBSOLETE. The first protoxylem elements next to the pericycle develop secondary walls and mature. definition_reference: GR:ap comment: This term has been obsoleted to keep the structure simple. term: calyx absolute size goid: PO:0021002 definition: OBSOLETE. The proportion of the absolute size reached by the calyx definition_reference: POC:curators term: calyx developmental stages goid: PO:0007603 definition: Stages of development of the calyx defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: calyx relationship goid: PO:0021003 definition: OBSOLETE. The stages of development of the calyx with respect to the rest of the bud definition_reference: POC:curators term: carpel primordium visible goid: PO:0007618 definition: Stage of gynoecium development that begins when the carpel primordia arise. definition_reference: POC:curators term: chalazal and micropylar domain establishment goid: PO:0001041 definition: The initial stage of endosperm development during which the chalazal and micropilar domains are established. definition_reference: TAIR:ki term: closure of carpel(s) goid: PO:0004502 definition: Stage of gynoecium development defined by the closure of the carpel(s).\n definition_reference: TAIR:ki comment: Closure of the carpel can occur in various ways, by fusion or secretion. term: coleoptilar stage goid: PO:0001094 definition: The coleoptilar primordium, SAM and radicle are formed in the embryo of grasses. definition_reference: TAIR:ki term: coleoptile emergence goid: PO:0007045 definition: Emergence of coleoptile above ground. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: corolla developmental stages goid: PO:0007604 definition: Stages of development of the corolla defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: cotyledon emergence goid: PO:0007049 definition: Emergence of cotyledons above ground. definition_reference: GR:ap definition_reference: ISBN:3826331524 comment: This cannot be used in plants with hypogeal germination. term: crown root emergence goid: PO:0007518 definition: The stage at which the crown root emerges. definition_reference: GR:ap comment: Crown root stages are based on rice plant. term: crown root primordium formation goid: PO:0007504 definition: The stage at which the initial cells of crown root primordium are formed in the innermost ground meristem cells by one or two periclinal divisions. definition_reference: GR:ap comment: Crown root primordia formed endogenously opposite the collateral bundles in maize. term: D bilateral stage goid: PO:0004507 definition: Change from radial to bilateral symmetry takes place during this embryonic stage. definition_reference: TAIR:ki term: D dormancy goid: PO:0007132 definition: A suspension of physiological activity that can be reactivated once it is broken. definition_reference: Poc:curators term: D locules established goid: PO:0001026 definition: Stage during which the four clearly defined locules are established. All anther cell types present and microspore mother cells appear. definition_reference: TAIR:ki term: D megaspore degeneration goid: PO:0007626 definition: The stage of megagametophyte development when non-functional megaspores degenerate. definition_reference: POC:curators comment: In some plants more than one megaspore contributes to the megametophyte. term: D pollen mother cell meiosis stage goid: PO:0001009 definition: Stage during which pollen mother cells undergo meiosis to form tetrads of microspores. definition_reference: TAIR:ki term: developing seed stage goid: PO:0004506 definition: Stage of seed development characterized by seed growth and differentiation. definition_reference: TAIR:ki term: dry seed stage goid: PO:0001040 definition: Mature seed with low moisture content. definition_reference: TAIR:ki term: E emerged root elongation goid: PO:0007529 definition: OBSOLETE. The stage at which the emerged root starts to elongate. definition_reference: GR:ap term: E expanded cotyledon stage goid: PO:0001078 definition: The stage during which embryo axis and cotyledons rapidly elongate as a result of cell division and cell expansion. definition_reference: TAIR:ki term: E tapetum degeneration initiated goid: PO:0001032 definition: Stage during which degeneration of the tapetum is initiated, as the deposition on the surface of the microspore primexine proceeds. definition_reference: TAIR:ki comment: Microspores within single locule are at unicellular stage. term: E tetrad stage goid: PO:0001029 definition: Stage immediately following meiosis, during which the tetrads of microspores are still hold together, enclosed by the callose wall. definition_reference: TAIR:ki term: E two nucleate megagametophyte goid: PO:0007627 definition: The stage of megagametophyte development when there are two nuclei. definition_reference: POC:curators term: early rosette growth goid: PO:0007081 definition: Rosette has reached approximately 20% of its final diameter. definition_reference: Poc:curators comment: A measure of vegetative growth, but leaf production is to be preferred. term: elongation zone formation goid: PO:0001028 definition: OBSOLETE. The cells of root primordium undergo elonagtion definition_reference: GR:ap term: embryo development stages goid: PO:0007631 definition: Stages of development of the embryo. definition_reference: TAIR:ki term: endosperm development stages goid: PO:0007633 definition: Stages of development of the endosperm. definition_reference: TAIR:ki term: epicotyl emergence goid: PO:0007054 definition: Emergence of the epicotyl above ground. definition_reference: ISBN:0306416875 definition_reference: GR:ap comment: Only the first true foliage leaf or pair of leaves are visible. Occurs in plants with hypogeal germination. term: establishment of initial cells goid: PO:0007523 definition: OBSOLETE. The root initial cells are established. definition_reference: GR:ap term: F bilocular anther stage goid: PO:0001034 definition: Stage during which anther becomes bilocular, after degeneration and breakage of septum below stomium. definition_reference: TAIR:ki term: F four nucleate megagametophyte goid: PO:0007628 definition: The stage of megagametophyte development when there are four nuclei. definition_reference: POC:curators term: F mature embryo stage goid: PO:0001081 definition: Stage at which the embryo is fully developed. definition_reference: TAIR:ki definition_reference: APWeb:glossary comment: In some taxa, this occurs some time after the ripe fruit stage and after the dispersal of the seed. term: F microspore release stage goid: PO:0001010 definition: Stage of microgametophyte development during which the callose wall between the tetrads breaks down and haploid microspores are released and lie freely in locules. definition_reference: TAIR:ki term: F1 root hair initiation goid: PO:0007531 definition: OBSOLETE. The stage at which the roots hairs are initiated. definition_reference: GR:ap term: F2 root hair elongation goid: PO:0007526 definition: OBSOLETE. The stage at which the root hairs are fully elongated. definition_reference: GR:ap term: fertilized ovule stage goid: PO:0004505 definition: The earliest stage of seed development immediately following double fertilization. definition_reference: TAIR:ki term: FF.00 fruit size 10% goid: PO:0007032 definition: The stage when the size of the fruit is about 10% of final fruit size. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FF.01 fruit size 30% goid: PO:0007009 definition: The stage when the size of the fruit is about 30% of final fruit size. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FF.02 fruit size 50% goid: PO:0007029 definition: The stage when the size of the fruit is about 50% of final fruit size. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FF.03 fruit size 70% goid: PO:0007007 definition: The stage when the size of the fruit is about 70% of final fruit size. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FF.04 final fruit size goid: PO:0007027 definition: The stage when the size of the fruit has reached the final fruit size. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FL.00 first flower(s) open goid: PO:0007026 definition: The stage at which the first flower(s) open. definition_reference: GR:pj comment: These first flowers are not necessarily the oldest flowers in the inflorescence. In some cereal plants the flowering starts in the middle of the inflorescence. This stage refers to the whole plant. term: FL.01 1/4 of flowers open goid: PO:0007034 definition: The stage at which 1/4 of flowers open definition_reference: GR:ap comment: This stage refers to the whole plant. term: FL.02 1/2 of flowers open goid: PO:0007053 definition: The stage at which 1/2 of flowers open. definition_reference: GR:ap comment: This stage refers to the whole plant. term: FL.03 3/4 of flowers open goid: PO:0007052 definition: The stage at which 3/4 of flowers open. definition_reference: GR:ap comment: This stage refers to the whole plant. term: FL.04 end of flowering goid: PO:0007024 definition: The stage at which flowering is complete. definition_reference: GR:ap comment: This stage refers to the whole plant. term: flower development stages goid: PO:0007615 definition: Stages of development of a flower defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: formation of aleurone and starchy layers goid: PO:0001099 definition: Differentiation of aleurone layer, the outermost endosperm tissue, and the internal starchy tissue. definition_reference: TAIR:ki term: formation of leaf primordium goid: PO:0001019 definition: Stage of leaf development when leaf primordium is formed as a small protrusion on the flank of SAM. definition_reference: TAIR:ki term: formation of leaflet primordia goid: PO:0004500 definition: Stage at which leaflet primordia are initiated on the leaf primordium of a compound leaf. definition_reference: TAIR:ki term: formation of ligule primordium goid: PO:0001021 definition: Stage of leaf development when conical P3 leaf completely encloses SAM, and the ligule primordium is visible, as in Poaceae. definition_reference: TAIR:ki term: formation of starchy endosperm goid: PO:0001098 definition: OBSOLETE. Stage of endosperm development during wich the formation of starchy endosperm occurs. definition_reference: TAIR:ki term: formation of the leaf founder cells goid: PO:0001003 definition: The initial stage of leaf development where cells in the SAM are already determined to form a leaf primordium, but the primordium itself is not distinguishable morphologically. definition_reference: TAIR:ki term: FR.00 beginning of fruit ripening goid: PO:0007036 definition: The stage at which fruit maturation begins. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FR.01 early stage of fruit ripening goid: PO:0007001 definition: The early stage in fruit ripening. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FR.02 mid stage of fruit ripening goid: PO:0007031 definition: The stage when fruit ripening is midway. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FR.03 late stage of fruit ripening goid: PO:0007050 definition: The late stage of fruit ripening. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: FR.04 fruit ripening complete goid: PO:0007038 definition: The stage at which fruit ripening is complete. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: fruit development stages goid: PO:0001002 definition: Stages of development of a fruit defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: fully expanded lemma goid: PO:0001057 definition: Stage of lemma development when lemma is fully expanded. definition_reference: POC:fz term: fully expanded lodicule goid: PO:0001079 definition: Stage of lodicule development when lodicule is fully expanded. definition_reference: POC:fz term: fully expanded palea goid: PO:0001071 definition: Stage of palea development when palea is fully expanded. definition_reference: POC:fz term: fully expanded petal goid: PO:0007612 definition: Stage of corolla development when petal is fully expanded. definition_reference: POC:fz term: fully expanded sepal goid: PO:0001045 definition: Stage of calyx development when sepal is fully expanded. definition_reference: POC:fz term: functional specialization of the endosperm goid: PO:0001042 definition: Stage of endosperm development during which the functional specialization of the maturing endosperm occurs. definition_reference: TAIR:ki term: G anther dehiscence goid: PO:0001035 definition: Stage during which the dehiscence of anthers occurs. Anther breaks along stomium and pollen is released. definition_reference: TAIR:ki term: G early unicellular microspore stage goid: PO:0001012 definition: Stage of microgametophyte development during which the microspores round up and small vacuoles appear in their cytoplasm. The microspore walls thicken due to the formation of the exine. definition_reference: TAIR:ki term: G eight nucleate megagametophyte goid: PO:0007629 definition: The stage of megagametophyte development when there are eight nuclei. definition_reference: POC:curators comment: Some plants do not form an eight nucleate megametophyte. term: gynoecium developmental stages goid: PO:0007606 definition: Stages of development of the gynoecium defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: gynoecium differentiation and expansion goid: PO:0004501 definition: Stage of gynoecium development defined by differentiation and expansion of carpels. definition_reference: TAIR:ki term: H anther senescence goid: PO:0001036 definition: Stage during which the senescence of anther and stamen occurs. Shrinkage of cells and anther structure takes place. definition_reference: TAIR:ki term: H late unicellular microspore stage goid: PO:0001013 definition: Stage of microgametophyte development during which a large vacuole is formed in each microspore causing a rapid increase in size and a displacement of the nucleus to one side. definition_reference: TAIR:ki term: hood-shaped primordium goid: PO:0001020 definition: Stage of leaf development when a hood-shaped primordium is formed, partially enclosing P1 and SAM, as in Poaceae. definition_reference: TAIR:ki term: hypocotyl emergence goid: PO:0007043 definition: Emergence of the hypocotyl above ground. definition_reference: GR:ap definition_reference: ISBN:0306416875 comment: Occurs in plants with epigeal germination. term: I first mitotic division stage goid: PO:0001014 definition: Stage of microgametophyte development during which the asymmetric, first mitotic division of the microspores occurs producing a large vegetative cell and small generative cell, located near pollen wall. definition_reference: TAIR:ki term: IE.00 inflorescence tip just visible above flag leaf sheath goid: PO:0007025 definition: The stage at which the inflorescence tip is just visible above flag leaf sheath definition_reference: GR:ap term: IE.01 1/4 of inflorescence emerged from flag leaf sheath goid: PO:0007048 definition: The stage at which 1/4 of inflorescence has emerged from flag leaf sheath. definition_reference: GR:ap term: IE.02 1/2 of inflorescence emerged from flag leaf sheath goid: PO:0007008 definition: The stage at which 1/2 of inflorescence has emerged from flag leaf sheath. definition_reference: GR:ap term: IE.03 3/4 of inflorescence emerged from flag leaf sheath goid: PO:0007002 definition: The stage at which 3/4 of inflorescence has emerged from flag leaf sheath. definition_reference: GR:ap term: IE.04 inflorescence fully emerged from flag leaf sheath goid: PO:0007023 definition: The stage at which the inflorescence has fully emerged from the flag leaf sheath. definition_reference: GR:ap term: IL.00 inflorescence just visible goid: PO:0007006 definition: Inflorescence just visible to the naked eye. definition_reference: Poc:curators term: IL.01 1/4 inflorescence length reached goid: PO:0007046 definition: The stage when 1/4 Inflorescence is visible. definition_reference: GR:ap term: IL.02 1/2 inflorescence length reached goid: PO:0007005 definition: The stage when 1/2 Inflorescence is visible. definition_reference: GR:ap term: IL.03 full inflorescence length reached goid: PO:0007003 definition: The stage when the inflorescence reaches full length. definition_reference: GR:ap term: imbibition goid: PO:0007022 definition: Absorption of water by the seed. definition_reference: ISBN:0306416875 definition_reference: GR:ap term: inflorescence bifurcation stage goid: PO:0007037 definition: Stage of inflorescence development marked by the formation of two, oftern equal-sized, inflorescence meristems from one inflorescence meristem. definition_reference: POC:curators term: inflorescence development stages goid: PO:0001083 definition: Stages of development of an inflorescence defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: inflorescence emergence from flag leaf sheath goid: PO:0007041 definition: The stage at which the inflorescence emerges from the flag leaf sheath. definition_reference: GR:ap term: inflorescence initiation stage goid: PO:0021004 definition: Stage of inflorescence development marked by the formation of the inflorescence meristem on a vegetative branch. definition_reference: POC:fz term: inflorescence visible (sensu Poaceae) goid: PO:0007012 definition: The stage at which grass plant is producing inflorescence(s). definition_reference: Poc:curators comment: There is no one-to-one correspondence between growth stages of inflorescences formation in members of Poaceae with that of other families. term: integument initiation stage goid: PO:0007622 definition: Stage of ovule development that begins when the integument primordia are visible. definition_reference: POC:curators term: J bicellular pollen stage goid: PO:0001059 definition: Stage of microgametophyte development during which the small generative cell moves inward, becoming completely surrounded by the cytoplasm of the vegetative cell. definition_reference: TAIR:ki term: K second mitotic division stage goid: PO:0001015 definition: Stage of microgametophyte development during which the generative cell undergoes mitotic division to form two male gametes, the sperm cells. definition_reference: TAIR:ki comment: In taxa with mature two-celled pollen, the second mitotic division takes place after pollen germination, in germinating pollen tube. term: L mature pollen stage goid: PO:0001016 definition: Stage of microgametophyte development during which the pollen reaches mature stage and desiccates. definition_reference: TAIR:ki comment: Mature pollen stages is reached at three-celled pollen in some angiosperms (maize, rice and Arabidopsis), while in others, the maturepollen has two haploid cells (tobacco, snapdragon). term: late rosette growth goid: PO:0007076 definition: Rosette has reached approximately 70% of its final diameter. definition_reference: Poc:curators comment: A measure of vegetative growth, but leaf production is to be preferred. term: lateral root emergence goid: PO:0007517 definition: The stage at which the lateral root emerges. definition_reference: GR:ap comment: Starch grains can be seen in the root cap after emergence. term: lateral root primordium formation goid: PO:0007511 definition: This stage at which the transverse divisions in pericycle cells form the initials of the lateral root primordium. definition_reference: GR:ap term: leaf development stages goid: PO:0001050 definition: Stages of development of a leaf defined by characteristic morphological, structural, histological or other visible features. definition_reference: TAIR:tb definition_reference: POC:curators term: leaf production goid: PO:0007133 definition: The stage at which the leaves produced by SAM are visible above the ground in a seedling or mature plant. definition_reference: Poc:curators comment: This stage is recommended over rosette growth or stem elongation as it is most easily observed and least ambiguous. term: leaf trichome development stage goid: PO:0007039 definition: Stages of development of a trichome defined by characteristic morphological, structural, histological or other visible features definition_reference: GR:cwt term: lemma developmental stages goid: PO:0001047 definition: Stages of development of the lemma defined by characteristic morphological, structural, histological or other visible features. definition_reference: GR:ap definition_reference: POC:fz term: lemma differentiation and expansion stage goid: PO:0001056 definition: Stage of lemma development defined by differentiation and expansion of lemma. definition_reference: POC:fz term: lemma primordia visible goid: PO:0001055 definition: Stage of lemma development that begins when the lemma primordia arise. definition_reference: POC:fz comment: The lemma primordium forms in 1/2 alternate phylotaxy in rice spikelet. term: lodicule developmental stages goid: PO:0001049 definition: Stages of development of the lodicule defined by characteristic morphological, structural, histological or other visible features. definition_reference: GR:ap definition_reference: POC:fz term: lodicule differentiation and expansion stage goid: PO:0001077 definition: Stage of lodicule development defined by differentiation and expansion of lodicule. definition_reference: POC:fz term: lodicule primordia visible goid: PO:0001072 definition: Stage of lodicule development that begins when the lodicule primordia arise. definition_reference: POC:fz comment: Two lodicules form on the side of the lemma in rice spikelet. term: LP.01 one leaf visible goid: PO:0007094 definition: The stage at which leaves at one node, other than the cotyledonary node, are visible above ground. definition_reference: Poc:curators definition_reference: GR:ap comment: In the taxa with hypogeal type germination the first leaf on the epicotyl is leaf 1, and in grasses, the coleoptile is leaf 1. The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.02 two leaves visible goid: PO:0007098 definition: The stage at which leaves at two nodes, other than the cotyledonary node, are visible above ground. definition_reference: Poc:curators comment: In grasses, the plant has one leaf plus the coleoptile. The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.03 three leaves visible goid: PO:0007106 definition: The stage at which leaves at three nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.04 four leaves visible goid: PO:0007115 definition: The stage at which leaves at four nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.05 five leaves visible goid: PO:0007065 definition: The stage at which leaves at five nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.06 six leaves visible goid: PO:0007123 definition: The stage at which leaves at six nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.07 seven leaves visible goid: PO:0007063 definition: The stage at which leaves at seven nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.08 eight leaves visible goid: PO:0007095 definition: The stage at which leaves at eight nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.09 nine leaves visible goid: PO:0007101 definition: The stage at which leaves at nine nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.10 ten leaves visible goid: PO:0007103 definition: The stage at which leaves at ten nodes, other than the cotyledonary node, are visible above ground definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.11 eleven leaves visible goid: PO:0007116 definition: The stage at which leaves at eleven nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.12 twelve leaves visible goid: PO:0007064 definition: The stage at which leaves at twelve nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.13 thirteen leaves visible goid: PO:0007083 definition: The stage at which leaves at thirteen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.14 fourteen leaves visible goid: PO:0007085 definition: The stage at which leaves at fourteen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.15 fifteen leaves visible goid: PO:0007104 definition: The stage at which leaves at fifteen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.16 sixteen leaves visible goid: PO:0007119 definition: The stage at which leaves at sixteen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.17 seventeen leaves visible goid: PO:0007067 definition: The stage at which leaves at seventeen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.18 eighteen leaves visible goid: PO:0007072 definition: The stage at which leaves at eighteen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.19 nineteen leaves visible goid: PO:0007120 definition: The stage at which leaves at nineteen nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: LP.20 twenty or more leaves whorls visible goid: PO:0007082 definition: The stage at which leaves at twenty or more nodes, other than the cotyledonary node, are visible above ground. definition_reference: GR:ap comment: The leaves can be a single leaf, two, or whorls of leaves at each node. term: M germinated pollen stage goid: PO:0001017 definition: The final stage in the life cycle of the male gametophyte. Upon rehydration, mature pollen grain forms a tubular outgrowth, the pollen tube, which carries the male gametes. definition_reference: TAIR:ki term: megagametophyte developmental stages goid: PO:0007621 definition: Stages of development of the megagametophyte. definition_reference: POC:curators comment: Although megaspore and megagametophyte development are normally separate, one spore producing one gametophyte, in some flowering plants a single gametophyte may be produced from two or four spores. term: meristamtic zone formation goid: PO:0001027 definition: OBSOLETE. The meristematic zone is formed definition_reference: GR:ap term: meristem eloboration goid: PO:0001000 definition: OBSOLETE. the root meristem gets organized definition_reference: GR:ap comment: This term has been obsoleted to keep the structure simple. term: mid rosette growth goid: PO:0007068 definition: Rosette has reached approximately 50% of its final diameter. definition_reference: Poc:curators comment: A measure of vegetative growth, but leaf production is to be preferred. term: N second mitotic division stage in germinating pollen goid: PO:0001074 definition: Stage of microgametophyte development during which the generative cell undergoes a mitotic division to form two male gametes, the sperm cells. definition_reference: TAIR:ki term: ovule developmental stages goid: PO:0007619 definition: Stages of development of the ovule defined by characteristic morphological, structural, histological or other visible features. definition_reference: POC:curators term: ovule differentiation and expansion goid: PO:0004504 definition: Stage of ovule development defined by differentiation and expansion of ovules. definition_reference: TAIR:ki term: ovule primordium visible goid: PO:0007620 definition: Stage of ovule development that begins when the ovule primordia arise. definition_reference: POC:curators term: palea developmental stages goid: PO:0001048 definition: Stages of development of the palea defined by characteristic morphological, structural, histological or other visible features. definition_reference: GR:ap definition_reference: POC:fz term: palea differentiation and expansion stage goid: PO:0001070 definition: Stage of palea development defined by differentiation and expansion of palea. definition_reference: POC:fz term: palea primordia visible goid: PO:0001058 definition: Stage of palea development that begins when the palea primordia arise. definition_reference: POC:fz comment: The palea primordium forms in 1/2 alternate phylotaxy in rice spikelet. term: petal differentiation and expansion stage goid: PO:0007611 definition: Stage of corolla development defined by differentiation and expansion of petal. definition_reference: POC:fz term: petal primordium visible goid: PO:0007608 definition: Stage of corolla development that begins when the petal or petal-stamen primordia arise. definition_reference: POC:curators term: plant growth and development stages goid: PO:0009012 definition: The succession of changes leading from the zygote to the mature plant. definition_reference: Poc:curators term: plant structure development stages goid: PO:0007021 definition: The succession of changes during the development of plant parts. definition_reference: POC:curators term: pollen developmental stages goid: PO:0001007 definition: Stages of development of the pollen defined by characteristic morphological, cytological, histological or other visible features. definition_reference: POC:fz term: primary endosperm cell stage goid: PO:0001096 definition: One cell stage that takes place following the fertilization, produced by the fusion of sperm cell nucleus and one or more polar nuclei. definition_reference: TAIR:ki term: primary root primordium formation goid: PO:0007506 definition: The stage at which a group of cells or initials that will differentiate into the primary root become organized in the embryo . definition_reference: GR:ap term: radicle emergence goid: PO:0007015 definition: The stage at which the radicle or root emerges from seed. definition_reference: ISBN:3826331524 definition_reference: GR:ap term: rapid elongation of leaf blade goid: PO:0001023 definition: Stage of leaf development during which a rapid elongation of the leaf blade occurs; the elongation of the leaf sheath has not started, as in Poaceae. definition_reference: TAIR:ki term: rapid elongation of leaf sheath goid: PO:0001024 definition: Stage of leaf development during which a rapid elongation of the leaf sheath occurs, as in Poaceae. definition_reference: TAIR:ki term: root cap formation goid: PO:0007501 definition: The stage at which the root cap becomes evident. definition_reference: GR:ap comment: The number and origin of root cap initials that form the root cap varies among species. The root cap initials become independent from the more internally located root meristem cells by an increase in the thickness of the cell wall that separates them term: root cortex differentiation goid: PO:0007513 definition: The stage at which the root cortex becomes evident. definition_reference: GR:ap comment: Repetitive periclinal divisions and radial enlargement of cells form the cortex layers, the innermost layers become the endodermis with the differentiation of casparian strips. term: root development stages goid: PO:0007520 definition: Stages of development of a root defined by characteristic morphological, structural, histological or other visible features. definition_reference: GR:ap comment: At present the stages are described for primary, lateral and crown roots and stages for adventitious root formed by wounding or hormone treatment is not described. Finer resolution of root stages has been kept in the obsolete node as they are not consistently used in the consulted literature. These terms will be reintroduced into the ontology when there is a specific user request. term: root emergence goid: PO:0007510 definition: The stage at which the fully formed root emerges. definition_reference: GR:ap term: root epidermal differentiation goid: PO:0007516 definition: The stage at which the root epidermis becomes evident. definition_reference: GR:ap comment: Root hairs come to full development beyond the region of elongation zone, approximately at the level where the xylem begins to mature. term: root primordium visible goid: PO:0007536 definition: OBSOLETE. the root primordium is visbile definition_reference: GR:ap term: root vascular cylinder differentiation goid: PO:0007509 definition: The stage at which the root vascular cylinder becomes evident. definition_reference: GR:ap comment: The first identifiable region in the differentiating vascular cylinder is the pericycle. In the xylem the differentiation of the tracheary elements begins in a centrifugal direction but is completed in the centripetal direction. The first phloem elements mature before the first xylem elements. term: rosette growth goid: PO:0007113 definition: Stages of growth based on expansion of the rosette in Arabidopsis definition_reference: TAIR:ki comment: A measure of vegetative growth, but leaf production is to be preferred. term: rosette growth complete goid: PO:0007078 definition: Stage at which rosette no longer increases in diameter, its leaf growth and expansion having ceased. definition_reference: Poc:curators comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.00 stem elongation begins goid: PO:0007079 definition: The stage at which the internodes begin to elongate. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.01 one node or internode visible goid: PO:0007091 definition: The stage at which one node or one internode is visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.02 two nodes or internodes visible goid: PO:0007117 definition: The stage at which two nodes or two internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.03 three nodes or internodes visible goid: PO:0007096 definition: The stage at which three nodes or three internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.04 four nodes or internodes visible goid: PO:0007092 definition: The stage at which four nodes or four internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.05 five nodes or internodes visible goid: PO:0007086 definition: The stage at which five nodes or five internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.06 six nodes or internodes visible goid: PO:0007062 definition: The stage at which six nodes or six internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.07 seven nodes or internodes visible goid: PO:0007108 definition: The stage at which seven nodes or seven internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.08 eight nodes or internodes visible goid: PO:0007070 definition: The stage at which eight nodes or eight internodes are visible. definition_reference: GR:ap comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.09 nine nodes or internodes visible goid: PO:0007066 definition: The stage at which nine nodes or nine internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.10 ten nodes or internodes visible goid: PO:0007084 definition: The stage at which ten nodes or ten internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.11 eleven nodes or internodes visible goid: PO:0007114 definition: The stage at which eleven nodes or eleven internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.12 twelve nodes or internodes visible goid: PO:0007111 definition: The stage at which twelve nodes or twelve internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.13 thirteen nodes or internodes visible goid: PO:0007090 definition: The stage at which thirteen nodes or thirteen internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.14 fourteen nodes or internodes visible goid: PO:0007097 definition: The stage at which fourteen nodes or fourteen internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.15 fifteen nodes or internodes visible goid: PO:0007074 definition: The stage at which fifteen nodes or fifteen internodes are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.16 sixteen or more nodes or internodes visible goid: PO:0007100 definition: The stage at which sixteen nodes or more, or sixteen internodes or more are visible. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.97 flag leaf visible goid: PO:0007099 definition: The stage at which the flag leaf is visible. definition_reference: GR:ap comment: A measure of vegetative growth, but leaf production is to be preferred. term: SE.99 maximum stem length reached goid: PO:0007109 definition: The stage at which maximum stem length is reached. definition_reference: GR:ap comment: A measure of vegetative growth, but leaf production is to be preferred. term: seed development stages goid: PO:0001170 definition: Stages of seed development, from fertilization to the dry or quiescent state. definition_reference: TAIR:ki term: seed maturation stage goid: PO:0007632 definition: Stage during which the seed storage products (storage proteins, lipids and starch) are being accumulated, either in the cotyledons or in the endosperm. Also, LEA proteins are accumulated and subsequentially, desiccation tolerant state is reached at the end of this stage. definition_reference: TAIR:ki term: seedling growth goid: PO:0007131 definition: Growth of embryo after imbibition up to the development of the first adult leaves. definition_reference: Poc:curators term: sepal differentiation and expansion stage goid: PO:0001044 definition: Stage of calyx development defined by differentiation and expansion of sepal. definition_reference: POC:fz term: sepal primordium visible goid: PO:0007607 definition: Stage of calyx development that begins when the sepal primordia arise. definition_reference: POC:curators term: sepals 100% of final size goid: PO:0007610 definition: OBSOLETE. 100% of the absolute size of the sepals. definition_reference: POC:curators term: sepals 50% of final size goid: PO:0007609 definition: OBSOLETE. 50% of the absolute size of the sepals. definition_reference: POC:curators term: sepals enclosing floral bud goid: PO:0001380 definition: Stage of calyx development that begins when the sepals enclose the floral bud. definition_reference: ISBN:0387940898 term: sepals enclosing meristem goid: PO:0001378 definition: Stage of calyx development that begins when the developing sepals overlie the floral meristem. definition_reference: ISBN:0387940898 term: shoot emergence goid: PO:0007030 definition: Shoot or leaf breaks through soil surface. definition_reference: GR:ap definition_reference: ISBN:3826331524 term: specialization zone formation goid: PO:0001030 definition: OBSOLETE. The cells develop their characteristic morphology. definition_reference: GR:ap term: stamen primordium visible goid: PO:0007613 definition: Stage of androecium development that begins when the stamens or petal-stamen primordia arise. definition_reference: POC:curators term: stem elongation goid: PO:0007089 definition: The stage at which the internodes elongate. definition_reference: GR:pj comment: A measure of vegetative growth, but leaf production is to be preferred. term: stigma cell differentiation goid: PO:0004503 definition: Epidermal cells at the top of developing style differentiate stigma. definition_reference: TAIR:ki term: true leaf formation goid: PO:0001095 definition: During this stage, the protrusion of the first leaf primordia takes place in succession. definition_reference: TAIR:ki comment: Not all embryos form true leaves during the embryonic development; this occurs post-embryonically in some taxa. term: whole plant growth stages goid: PO:0007033 definition: The succession of changes during the growth of the whole plant. definition_reference: GR:pj