Question

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$\red{Explain\: pollen\: tube \: growth\: on\: stigma}$
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Answer 1

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Explain the growth of pollen tube on stigma.

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(refer to the attachment)

When pollen grains from anther attached to STIGMA , The formation of pollen tube starts and it grows through style to ovary inside the ovule. The nucleus of the pollen then passes along the pollen tube and fuses (joins) with the nucleus of the ovule. When the pollen grain reaches on stigma and settle their it germinates in response to a sugary fluid secreted by the mature stigma of certain plants.

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Pollen tubes act as conduits to transport the male gamete cells from the pollen grain—either from the stigma (in flowering plants) to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms.

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Answer 2

$\Huge\mathcal\red{Answer !}$

When pollen grains from anther attached to STIGMA , The formation of pollen tube starts and it grows through style to ovary inside the ovule. The nucleus of the pollen then passes along the pollen tube and fuses (joins) with the nucleus of the ovule. When the pollen grain reaches on stigma and settle their it germinates in response to a sugary fluid secreted by the mature stigma of certain plants.

Pollen tubes act as conduits to transport the male gamete cells from the pollen grain—either from the stigma (in flowering plants) to the ovules at the base of the pistil or directly through ovule tissue in some gymnosperms