Q88: Given below are statements about the pollination behavior of crop... - Cell Biology, Genetics, Physiology, Biochemistry & Plant Protection - ICAR AIEEA PG Plant Sciences 09 July 2023 (Shift 1) Paper | Agrigyan

Analyzing floral pollination mechanisms:

• Statement (A) is FALSE: Dicliny (unisexual flowers) and dichogamy (differential maturation of anthers and stigma) are classical adaptations that PREVENT self-pollination and PROMOTE cross-pollination (allogamy).
• Statement (B) is TRUE: Maize (Zea mays) is protandrous; tassels shed pollen 2-3 days before silks emerge from the ear.
• Statement (C) is TRUE: Both forms of dichogamy (protandry where pollen matures first, and protogyny where stigma matures first) temporally separate male and female function, favoring cross-pollination.
• Statement (D) is TRUE: Pearl millet (Pennisetum glaucum) is protogynous; the feathery stigmas emerge and mature several days before anthers emerge, facilitating cross-pollination.