Assertion (A) : Herbicides can destroy weeds without harming useful plants. Reason (R) : Herbicides are absorbed in different rates by weeds and crop plants. Select the correct answer using the codes given below: Codes:

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Accepted Answer

Both A and R are true and R is the correct explanation of A.. Plants which grow in the fields without showing and are generally undesirable and harmful for crops, are used to destroyed by herbicides. This herbicide destroys the weeds without harming the main plant. The main reason for this is the disparity of absorption. There are two types of herbicide, one that destroys the plant of a particular species and the other does not harm any, such as - 4 DMCP, 4-5T, 2, 4, 5 TV caravelin . The second one destroys all vegetation and are used in barren and fallow lands. An example of herbicide are diclofop, paraquat, diquat, bromasil etc.

Assertion (A) : Herbicides can destroy weeds without harming useful plants. Reason (R) : Herbicides are absorbed in different rates by weeds and crop plants. Select the correct answer using the codes given below: Codes:

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