Mineral nutrient
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Shouldn't opt a be the ans instead of opt c? Zn is needed for auxin synthesis. Please explain.
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Here they are talking about the growth below the soil. So here Calcium is the important one. Whereas auxin synthesis is taking the nutrients from the root to the plant above the soil. So it is only the Calcium that do the needy.
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@sathya how will root grow without auxin?
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@anag
root growth is enhanced under nitrogen and phosphorus deficiencies, but not under deficiencies of nutrients of low mobility in the phloem, such as calcium and boron. Enhanced root growth under nutrient deficiency relies on the import of both photosynthates and mineral nutrients.
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elastic cells absorb more water and can grow longer strangely. though stems and roots respond differently to high concentrations of auxin whilst. the stem cells grow more the root cells actually grow less so auxins make plants grow.