| Term | Explanation |
| Microsporogenesis | Formation of microspores from a PMC through meiosis |
| Megasporogenesis | Formation of megaspores from the mega spore mother cell |
| Monosporic development | Embryo sac formation from a single megaspore |
| Pollination | Transfer of pollen grains from anther to the stigma of a pistil |
| Autogamy | Transfer of pollen grains from the anther to the stigma of the same flower. |
| Geitonogamy | Transfer of pollen grains from the anther to the stigma of another flower of the same plant. |
| Xenogamy | Transfer of pollen grains from anther to the stigma of a different plant. |
| Artificial hybridisation | Crossing different species to combine desirable characters to produce superior varieties. |
| Emasculation | Removal of anthers from flower bud before the anther dehisces. |
| Bagging | Covering emasculated flowers with a bag to prevent contamination of its stigma with unwanted pollen. |
| Syngamy | Fusion of male and female gamete |
| Triple fusion | Fusion of three haploid nuclei |
| Double Fertilisation | Two types of fusions syngamy and triple fusion that takes place in an embryo sac. |
| Post fertilization events | Events of endosperm ,embryo development ,maturation of ovule into seed, ovary into fruit. |
| Free –nuclear endosperm | The stage of endosperm development wherein PEN undergoes successive nuclear divisions to give rise to free nuclei. |
| Dormancy of seed | Embryo enter a state of inactivity (Resting period of seed) |
| False fruit | Thalamus contributes to fruit formation |
| True fruit | Fruits develop from the ovary |
| Parthenocarpic fruits | Fruits develop without fertilisation |
| Apomixis | Production of seeds without fertilisation of grasses |
| Polyembryony | More than one embryo in a seed |
| Filament | Long slender stalk of stamen |
| Anther | Bilobed structure of stamen |
| Dithecous | Two theca in each lobe |
| Tapetum | Innermost wall layer of microsporangia |
| Sporogenous tissue | Compactly arranged homogenous cells in the centre of microsporangia. |
| Microspore tetrad | Cluster of four microspores |
| Pollen grains | Male gametophyte |
| Exine | Hard outer layer of pollen grain |
| Sporopollenin | Most resistant organic material of exine |
| Germ pore | Apertures in pollen grain |
| Intine | Inner wall of the pollen grain |
| Generative cell | Cell floats in the cytoplasm of vegetative cell |
| Monocarpellary | Single pistil |
| Multicarpellary | More than one pistil |
| Syncarpous | Fused pistils |
| Apocarpous | Free pistils |
| Stigma | Landing platform of pollen grains |
| Style | Elongated slender part beneath the stigma |
| Ovary | Basal bulged part of pistil |
| Ovule | Megasporangia |
| Funicle | Stalk of ovule |
| Hilum | Region ,the body of the ovule fuses with funicle |
| Integuments | Protective envelopes of ovule |
| Micropyle | Small opening in the ovule |
| Chalaza | Basal part of the ovule |
| Embryo sac | Female gametophyte |
| Egg apparatus | Three cells at the micropylar end with two synergids and one egg cell. |
| Antipodals | Three cells at the chalazal end |
| Cleistogamous flower | Flowers which do not open at all |
| Zygote | Diploid cell resulting out of fertilisation |
| Primary endosperm cell | Central cell after triple fusion becomes PEC |
| Embryogeny | Embryo development |
| Epicotyl | Portion of embryonal axis above the level of cotyledons |
| Hypocotyl | Portion below the level of cotyledons |
| Scutellum | Cotyledon of grass family situated towards one side of embryonal axis. |
| Coleorrhiza | Undifferentiated sheath that encloses radical and root cap |
| Coleoptile | Hollow foliar structure that encloses a shoot apex and a few leaf primordia. |
| Non-albuminous seed or ex- | No residual endosperm as it is completely consumed during embryo development. |
| Albuminous | Retain a part of endosperm as it is not completely used up during embryo development. |
| Perisperm | Residual persistent nucellus |
| Pericarp | Wall of the fruit |
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