PREDICTION OF IRON CHLOROSIS IN SUGARCANE FROM PLANT ANALYSIS

G. RAMANATHAN; N; NAGASUNDARAM; D AUGUSTINE SELVASEELAN; and A. BHASKAR

doi:https://doi.org/10.29321/MAJ.10.A02155

Madras Agricultural Journal

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PREDICTION OF IRON CHLOROSIS IN SUGARCANE FROM PLANT ANALYSIS

Author: G. RAMANATHAN, N, NAGASUNDARAM, D AUGUSTINE SELVASEELAN, and A. BHASKAR,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 74, Issue: feb-feb,

DOI:https://doi.org/10.29321/MAJ.10.A02155

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Abstract

The technique of plant analysis, as a means of predicting Fa chlorosis in sugarcane crop has been investigated. The study revealed that in the early stages of crop growth, (less than 1 month), differentiation can be made on the basis of metabolically active Fe+ which declined sharply in chlorotic leaves as compered to normal leaves. At later stages, (after 5 months of crop growth), widening of P/Fe ratio predicted. chlorosis better. Still later from 5 to 7 months, there was imbalance of Fe/Mn, revealing chlorosis. Decline in Mn content at 7 to 10 months of crop growth was also indicative of chlorotic condition-

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