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Sexual Reproduction In Flowering Plants — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYSexual Reproduction In Flowering Plants4 Marks
Question
Write a short note on pollination by wind.
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Answer

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→ Pollination by wind is more common amongst abiotic pollinations.
→ Wind pollination also requires that the pollen grains are light and non-sticky so that they can be transported in wind currents.
→ They often possess well-exposed stamens so that the pollens are easily dispersed into wind currents, and large often-feathery stigma to easily trap air-borne pollen grains.
→ Wind pollinated flowers often have a single ovule in each ovary and numerous flowers packed into an inflorescence.
→ A familiar example is the corn cob the - tassels you see are nothing but the stigma and style which wave in the wind to trap pollen grains.
→ Wind-pollination is quite common in grasses.

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