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Ability of stigma to recognise the pollen whether it is of right type or the wrong type

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An Intiative by Sri Chaitanya

can occur even inside the stylar canal when pollen tube growth is inhibited

is called pollen-pistil interaction

starts by a chemical dialogue between pollen and stigma

all are correct

answer is D.

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Detailed Solution

Recognition of pollen by pistil is chemical dialogue between the pollen and stigma or style. The right pollen is allowed to germinate and the wrong type is rejected either on the stigma or in the style.

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