Question
Which of following mechanisms does not promotes cross
pollination:Solution
Cleistogamy (Correct Answer): - **Does not promote cross-pollination**, as it allows self-pollination (autogamy) 2. Dicliny (Promotes cross-pollination): - Presence of unisexual flowers (male and female on separate plants or flowers). 3. Dichogamy (Promotes cross-pollination): - Temporal separation of male and female maturation (protandry/protogyny). 4. Self-incompatibility (Promotes cross-pollination): - Genetic mechanism blocking pollen germination on the same plant. Key Concept: - Cleistogamy (closed flowers, self-pollination).
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