• Apomixis:- It is a form of asexual reproduction in which seed is produced but the embryo develop without fusion of male and female gamets.
• When sexual reproduction occurs besides apomixes, the apomixes is termed as “Facultative apomixes”.
• Apospory – Some vegetative cells of the ovule develop into unreduced embryo seed without meiosis.
• Apogamy – Synergids (or) antipodal cells develop into embryo.
• Pseudogamy – Development of apomictic seed by the stimulus of pollination and pollen
tube growth without fertilization.
• Parthenogenesis – Development of a embryo without fertilization.
• Parthenocarpy – Development of fruit without seed.
• Monogamy – Both male and female flowers mature at the same time.
• Chasmogany – Flowers open only http://asnu.com.au/levitra-20mg/ after pollination.
• Dichogamy – Male and female flowers mature at different times.
• Heterostyly – Flowers are bisexual but stamens and styles are of different lengths.
• In often cross pollinated crops cross pollination exceeds 5%.
• NBPGR – National Bureau of Plant Genetic Resources.
• The part of plant used in the propagation of the species is known as “Propagule”.
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