First slide

Plant Growth Regulators

Question

2,4-D is used to remove:

Easy

A

Monocot weeds growing in between the dicot plants
B

Plants possessing leaves with parallel venation
C

Dicot weeds growing in between monocot crop plants
D

Plants possessing narrow leaves

Solution

Auxins are widely used as herbicides. 2, 4-D, widely used to kill dicotyledonous weeds, does not affect mature monocotyledonous plants. It is used to prepare weed-free lawns by gardeners.

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