Question

Explain Dichogamy with suitable example

Answer 1

Explanation:

Dichogamy = Anther and stigma mature at different times in bisexual flowers so as to prevent self pollination.

Ex Sunflower

Answer 2

Answer:

Dichogamy is a process where the male and the female reproductive part of the plant mature at different times to avoid self-fertilization.

Explanation:

Self- fertilization is a process where the fusion of two opposite gametes (male and female gametes) occurs that is produced by the same plant. Usually, self-fertilization is avoided as it results in inbreeding depression making the progenies vulnerable to the changing environment. Thus, plants try to have adopted many mechanisms to avoid self-fertilization. One such mechanism is dichogamy. In this process, the male part (stamen) and the female part (pistil)mature at different times. Either the stamen mature earlier or the pistil mature earlier. The maturing or ripening of the reproductive parts at different times is necessary to avoid self-fertilization at all costs.