In the wheat field, some broad-leaved weeds were seen by a farmer. ____ plant hormone is used, to get rid of the same.

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Detailed Solution

Concept- The hormone auxin is used to get rid of broad-leaved weeds in a wheat field. Understanding the life cycles of broadleaf weeds in wheat fields is the first step toward eliminating them. Farmers use herbicides or weedicides depending on the type of weeds, such as annuals, biennials, or perennials.
There are various kinds of weeds:
Summer annuals germinate in the spring, mature in the summer, set seed, and then perish by the fall or the first hard frost.
Only 12 months, or two calendar years, are shared by winter annual weeds. They begin to grow in the late summer and bloom in the spring.
Broadleaf weeds that are perennial spread via seeds and form a root system that gives rise to new weeds. Annual weeds, which include some broadleaf weed varieties, are simple to control because they only last for one growing season. Hence, auxins are widely used as herbicides or weedicides to kill broad-leaved weeds. Examples: 2,4-D and 2,4,5-T.
Hence, the answer is auxin.

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