A) apospory
B) apogamy
C) parthenocarpy
D) polyembryony
Correct Answer: B
Solution :
The embryo formation without fertilization is known as apogamy. Apogamy is the development of a sporophyte directly from the gametophyte without the intervention of sex organs and gametes. Apogamy is induced by strong light, high temperature, ageing, sugars, ethylene and partial desiccation. Natural apogamy is commonly found in Dryopteris, Pteris, Adiantum, Osmunda etc.
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