Biology
Which of the following conditions favours self-pollination?
- Homogamy
- Herkogamy
- Dichogamy
- None of these
Answer
Homogamy
Reason — In homogamy anther and stigma of a flower mature at same time, favouring self pollination.
Herkogamy is a physical barrier or separation between anthers and stigma. So, it prevents self-pollination and promotes cross-pollination. Dichogamy is anthers and stigma mature at different times. So, it prevents self-pollination.
Related Questions
Which one of the following is one of the characteristics of self-pollinated flowers?
- Flowers are large and showy
- Flowers remain closed and do not open
- Stigma and anthers mature at the same time
- Pollen is produced in very large quantities
The kind of pollination in which the pollen of the same flower fall on its stigma is termed as:
- Geitonogamy
- Autogamy
- Homogamy
- Allogamy
Pollination by birds is termed as :
- Entomophily
- Anemophily
- Ornithophily
- Elephophily
Which of the following is an example of an ornithophilous flower ?
- Bougainvillea
- Vallisneria
- Bignonia
- Rafflesia