Question : Give in detail about the vitality of Boron and Zinc in plan

1.	Question : Give in detail about the vitality of Boron and Zinc in plant nourishment.
Answer» Solution :ZINC (Zn) : ESSENTIAL for the sythesis of Indole acetic acid (Auxin) activator of carboxylases, alcohol dehydrogenase, lactic dehydrogenases, glutamic acid dehydrogenase, carboxy peptidases and tryptophan synthetase. It is absorbed as `Zn^(2+)` ions. Deficiency : Little leaf and mottle leaf due to deficiency of auxin, Inter veinal chlorosis, stuntedgrwoth, NECROSIS and Khaira disease of RICE. Boron (B) : Translocation of carbohydrates, uptake and utilisation of `Ca^(++)`, pollen germination, nitrogen metabolism fat metabolism, cell elongation and differentiation. It is absorbed as borate `BO^(3-)` ions. Deficiency : Death of root and shoot tips premature fall of flowers and fruits, brown heart of beet root, internal cork of apple and FRUIT carcks.

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