What is the significance of synchrony in pollen release and stigma receptivity in autogamy?

Question

What is the significance of synchrony in pollen release and stigma receptivity in autogamy?, It leads to the formation of cleistogamous flowers, It leads to complete autogamy in normal flowers, It leads to the production of seeds in the absence of pollinators, It leads to cross-pollination

MARKS App · Accepted Answer

In autogamy, pollination is achieved within the same flower. For complete autogamy to occur in a normal flower that opens and exposes the anthers and stigma, synchrony in pollen release and stigma receptivity is required. This means that the pollen should be released at the same time as the stigma is receptive. This, along with the proximity of the anthers and stigma, allows self-pollination to occur.

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