Multiple choice

In which of the following phenomenon a flower creates some mechanical barrier on their stigmatic surface to avoid self pollination?

  1. Dichogamy

  2. Self incompatibility

  3. Herkogamy

  4. Dioecism

  5. Heterostyly

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This flower possesses some mechanical barrier on their stigmatic surface to avoid self pollination, presence of gynostegium and pollinia in caleotropis.