1.

The substance which have proved very effective to induce rooting from cut end of the stem is Or Abscission of fruit is prevented byA. Phenyl acetic acidB. `alpha` - naphthalene acetic acidC. Indole acetic acidD. Indole butyric growth

Answer» Correct Answer - d
(d) many new plant s aare usually propapageted by stem cutiing .If we dip to the lower cut end of cutting in dilute solution of auxins (especiallt IBA) very soon large number of roots are developed on the cut ends due to which these cutting develop into successfull plants


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