A: Initial growth of the pollen tube takes pl | vedclass

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(C) The initial growth of the pollen tube is supported by the food reserves present within the pollen grain itself.As the pollen tube grows further th

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Assertion is correct,but Reason is incorrect.

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(C) The initial growth of the pollen tube is supported by the food reserves present within the pollen grain itself.As the pollen tube grows further through the stigma and style,it utilizes the nutrients available in the tissues of the pistil.Therefore,the Assertion is correct.The pollen tube grows through the style towards the ovary,guided by chemical signals (chemotaxis) released by the synergids in the ovule.It typically travels through the intercellular spaces of the style,not intracellularly.Thus,the Reason is incorrect because the movement is intercellular,not intracellular.

$A$: Initial growth of the pollen tube takes place at the expense of food present in the stigma and style.
$R$: The pollen tube travels intracellularly and chemotactically.

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$A$: Initial growth of the pollen tube takes place at the expense of food present in the stigma and style.$R$: The pollen tube travels intracellularly and chemotactically.