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Reproduction in Lower and Higher Plants — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYReproduction in Lower and Higher Plants2 Marks
Question
Dichogamy favours cross pollination.
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Answer

  1. Maturation of anther (stamen) and stigma (carpel) at different times is called dichogamy.
  2. Dichogamy is of two types, viz, protandry and protogyny.
  3. Maturity of anthers before that of gynoecium is protandry and maturity of carpel before maturity of pollen grains is protogyny.
  4. As this forms barrier for self-pollination, dichogamy favours cross pollination.

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