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What is the pollen tube in sexual reproduction of flower?

April 26, 2017Botany flower India Mathematics pollen reproduction sexual tube

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What is the pollen tube in sexual reproduction of flower?

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When pollen grain lands itself to a stigma of the flower, it germinates and forms a pollen tube. This pollen tube carries two male gametes in it. One of it fuses with egg cell and forms zygote and the other fuses with two central cells.to form endosperm which is triploid.