Question

Why is autogamy discouraged in plants .mention four adaptation they have to ensure xenogamy

Answer 1

Answer:

autogamy or self pollination results in homozygosity and inbreeding depression .

4 adaptions for Xenogamy :

*flowers are unisexual and the plant is dioecious .

*pollen release and stigma receptivity are not synchronized , either the anthers mature first or the pistil / gynoecium matures first before anther .

*the anthers and stigma of a flower are placed in such a way that the pollen of the same flower cannot fall on stigma .

*self - incompatability is a genetic mechanism that prevents the germination of pollen from the same flower on the stigma .