Chlorotic Phenomenon in Groundnut

S. GOPALAKRISHNAN and P. S. SRINIVASAN

doi:https://doi.org/10.29321/MAJ.10.A03293

Madras Agricultural Journal

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Chlorotic Phenomenon in Groundnut

Author: S. GOPALAKRISHNAN and P. S. SRINIVASAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 63, Issue: apr-apr,

DOI:https://doi.org/10.29321/MAJ.10.A03293

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Abstract

Chlorosis caused by poor drainage is compared with that caused by mineral deficien- cies of N. S or Fe. Chlorotic symptoms of the foliage manifest on the 60th day. But estimation of chlorophyll shows a decrease much earlier even in 30 days. Sulphur and iron deficiencies are not severe. Carbohydrate status is more disturbed than nitrogen. The poor drainage situation causes a reduction in yield of pods by 30.6 per cent from control and oil content by 3.2 per cent.

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