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प्रश्न
Very short answer type question:
Name the part of gynoecium that determines the compatible nature of pollen grain.
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उत्तर
The stigma of the pistil determines the compatibility of the pollen grains by allowing only compatible pollen grains to germinate. A pistil, or carpel, is the individual member of the female reproductive whorl, the gynoecium.
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संबंधित प्रश्न
Incompatibility is a natural barrier in the fusion of gametes. How will you explain this statement?
Give an account of pollen pistil interaction in detail.
Identify the INCORRECT statement from the following.
i. The compatible pollen absorbs water and nutrients from the surface of stigma, germinates and produces pollen tube.
ii. The pistil has the ability to recognise and accept the right or compatible pollen of the same species.
iii. Pollination always guarantee the transfer of right type of pollen grain on stigma.
What role do proteins and chemical secretions on the stigma surface play in pollen-pistil interaction?
What is porogamy?
What is syngamy in the context of double fertilisation?
What is triple fusion in double fertilisation?
What is the optimal temperature range for pollen tube growth in most flowering plants?
Arrange the following steps in the correct sequence of pollen-pistil interaction: (1) Pollen tube enters synergid, (2) Pollen lands on stigma, (3) Pollen tube grows through style, (4) Compatible pollen hydrates and germinates
How does the population effect of calcium contribute to pollen tube growth?
