Question

13. Describe the out breeding devices that prevent autogamy ​

Answer 1

Explanation:

1) Position of anther and carpel placed at different places prevent autogamy.

2) The difference in the time of release of pollen grains and the receptivity of stigma also prevents autogamy.

3) The incompatibility of pollen grains also helps to prevent autogamy. The pollen grains fail to germinate and prevent autogamy

Answer 2

The devices which are used to prevent autogamy are: The male and the female reproductive organs in the flower do not get matured at the same time (protandry and protogyny). ... The stigma of the female flower does not recognise the pollen from the anther of the flower on same plant (self-incompatibility)
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