Home
Class 12
BIOLOGY
When anthers and stigma of a given flowe...

When anthers and stigma of a given flower mature at different points of time, it is a case of

A

Geitonogamy

B

Dichogamy

C

Cleistogamy

D

Herkogamy

Text Solution

Verified by Experts

The correct Answer is:
B

In some species, pollen release and stigma receptivity are not synchronised. Either the pollen is released before the stigma becomes receptive or stigma becomes receptive much before the release of pollen. This condition is called dichogamy in which stigma and anther matures at different time.
Promotional Banner

Similar Questions

Explore conceptually related problems

When anthers and stigma mature at the same time it is called

[A] : Xenogamy is defined as the transferance of pollen grain to stigma of same flower. [R] : In xenogamy, the pollen frain of a flower are transferred to stigma of a different flower of a different plant of different species.

Which of the following is an outbreeding device ? a. If pollen release and stigma receptivity are not synchronised. b. If the anther and stigma are placed at different positions so that pollen cannot come in contact with the stigma of the same flower. c. Self-incompatibilty which prevents self-pollen (from the same plant) from fertilising the ovules by inhibiting pollen germination or pollen tube growth in the pistil. d. Production of the unisexual flower

When pollen grains of a flower are transferred to stigma of another flower of a different plant, the process is called

Fusion of anthers with stigma in a flower results in formation of:

When transfer of pollen grains from anther to stigma of different plants takes place, it is called geitonogamy/xenogamy.