Factors favouring cross pollination (i) Unisexuality. A flow | Agriculture Exams Library

Factors favouring cross pollination

(i) Unisexuality.
A flower is unisexual when only one sex is present in it. It may be staminate possessing stamens only or pistillate possessing carpel only e.g. papaya, date palm, grape (muscadine) etc.

(ii) Chasmogamy.
The flowers are open and their reproductive organs are exposed to external environment. In chasmogamous flowers, cross-pollination is common. They attract bees, butterflies, moths, birds, bats, squirrels, animals, mankinds and also subjected to the action of wind and water. All such factors creates cross-pollination.