GRO:0007137 embryo development > PO:embryo development stages ; PO:0007631 GRO:0007168 embryo stage EM1 > PO:A zygote ; PO:0001097 GRO:0007177 embryo stage EM10 > PO:seed maturation stage ; PO:0007632 GRO:0007177 embryo stage EM10 > PO:F embryo at maturity of a seed ; PO:0001081 GRO:0007171 embryo stage EM2 > PO:B proembryo stage ; PO:0001180 GRO:0007170 embryo stage EM3 > PO:C globular stage ; PO:0001185 GRO:0007173 embryo stage EM4 > PO:C globular stage ; PO:0001185 GRO:0007169 embryo stage EM5 > PO:coleoptilar stage ; PO:0001094 GRO:0007172 embryo stage EM6 > PO:true leaf formation ; PO:0001095 GRO:0007176 embryo stage EM9 > PO:F embryo at maturity of a seed ; PO:0001081 GRO:0007138 leaf development > PO:leaf developmental stages ; PO:0001050 GRO:0007161 leaf stage P0 > PO:formation of the leaf founder cells ; PO:0001003 GRO:0007164 leaf stage P1 > PO:formation of leaf primordium ; PO:0001019 GRO:0007163 leaf stage P2 > PO:hood-shaped primordium ; PO:0001020 GRO:0007166 leaf stage P3 > PO:formation of ligule primordium ; PO:0001021 GRO:0007162 leaf stage P4 > PO:rapid elongation of leaf blade ; PO:0001023 GRO:0007165 leaf stage P5 > PO:rapid elongation of leaf sheath ; PO:0001024 GRO:0007167 leaf stage PX > PO:3 leaf fully expanded ; PO:0001053 GRO:0007160 ovule development > PO:gynoecium developmental stages ; PO:0007606 GRO:0007178 ovule stage OV0 > PO:carpel primordium visible ; PO:0007618 GRO:0007181 ovule stage OV1 > PO:ovule primordium visible ; PO:0007620 GRO:0007181 ovule stage OV1 > PO:gynoecium differentiation and expansion ; PO:0004501 GRO:0007180 ovule stage OV2 > PO:integument initiation stage ; PO:0007622 GRO:0007180 ovule stage OV2 > PO:A megaspore mother cell enlarges ; PO:0007623 GRO:0007179 ovule stage OV4 > PO:B meiosis of MMC ; PO:0007624 GRO:0007179 ovule stage OV4 > PO:C tetrad of megaspores ; PO:0007625 GRO:0007184 ovule stage OV6 > PO:D megaspore degeneration ; PO:0007626 GRO:0007185 ovule stage OV7 > PO:E two nucleate megagametophyte ; PO:0007627 GRO:0007188 ovule stage OV8 > PO:F four nucleate megagametophyte ; PO:0007628 GRO:0007187 ovule stage OV9 > PO:G eight nucleate megagametophyte ; PO:0007629 GRO:0007157 panicle development > PO:inflorescence development stages ; PO:0001083 GRO:0007189 panicle stage PA1 > PO:inflorescence initiation stage ; PO:0021004 GRO:0007136 rice plant part development stage > PO:plant structure development stage ; PO:0007021 GRO:0007204 spikelet stage SP3 > PO:lemma developmental stages ; PO:0001047 GRO:0007207 spikelet stage SP4 > PO:palea developmental stages ; PO:0001048 GRO:0007203 spikelet stage SP5 > PO:lodicule developmental stages. ; PO:0001049 GRO:0007159 stamen development > PO:androecium developmental stages ; PO:0007605 GRO:0007209 stamen stage ST0 > PO:stamen primordum visible ; PO:0007613 GRO:0007211 stamen stage ST1 > PO:A archesporial cells visible ; PO:0001005 GRO:0007214 stamen stage ST2 > PO:B formation of primary parietal and sporogenous cells ; PO:0001018 GRO:0007213 stamen stage ST4 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007212 stamen stage ST5 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007217 stamen stage ST5-1 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007218 stamen stage ST5-2 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007219 stamen stage ST5-3 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007220 stamen stage ST5-4 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007221 stamen stage ST5-5 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007222 stamen stage ST5-6 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007223 stamen stage ST5-7 > PO:D pollen mother cell meiosis stage ; PO:0001009 GRO:0007224 stamen stage ST5-8 > PO:E tetrad stage ; PO:0001029 GRO:0007226 stamen stage ST6-1 > PO:G early unicellular microspore stage ; PO:0001012 GRO:0007226 stamen stage ST6-1 > PO:H late unicellular microspore stage ; PO:0001013 GRO:0007228 stamen stage ST6-2 > PO:I first mitotic division stage ; PO:0001014 GRO:0007227 stamen stage ST6-3 > PO:J bicellular pollen stage ; PO:0001059 GRO:0007229 stamen stage ST6-4 > PO:K second mitotic division stage ; PO:0001015 GRO:0007230 stamen stage ST6-5 > PO:L mature pollen stage ; PO:0001016