how Bisexual plants are prevented from self pollination and favour cross pollination
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●Plants avoid self-pollination by a whole range of different mechanisms.
●A lot of flowers produce both pollen and nectar, and the reason they do that is the insect-pollinated flowers have to attract insects to visit the flowers to carry the pollen on somewhere else.Jun 6, 2012
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Bisexual plants favor natural phenomenon known as cross pollination but prevented from self-pollination by mechanisms Dicilincy, Self-Sterility and Dichogamy.
Explanation:
It happens through the following mechanisms naturally:
- Diclincy: Cross-fertilization is the standard among diclinous plants, i.e., those bearing unisexual blossoms. In dioecious plants nothing else can happen.
- Self-sterility: In this condition, when the pollen of same flower fertilizes the flower, the flower falls off.
- Dichogamy: The maturation of stamens and carpel at same time leads to ineffective pollination in plants.
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