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INFLUENCE OF GROWTH REGULATORS ON DRY MATTER PRODUCTION DISTRIBUTION AND SHELLING PRECENTAGE IN DETERMINATE AND SEMIDETERMINATE SOYBEAN GENOTYPES

Article Id: ARCC3662 | Page : 191 - 195
Citation :- INFLUENCE OF GROWTH REGULATORS ON DRY MATTER PRODUCTION DISTRIBUTION AND SHELLING PRECENTAGE IN DETERMINATE AND SEMIDETERMINATE SOYBEAN GENOTYPES.Legume Research.2006.(29):191 - 195
Pankaj Kumar*, S.M. Hiremath and M.B. Chetti
Address : Department of Crop Physiology, University of Agricultural Sciences, Dharwad - 580 005, India

Abstract

Experiment was conducted to study the effect of foliar application of growth regulators on total dry matter production, distribution towards reproductive parts, biomass duration (BMD) and shelling per cent in two soybean genotypes JS-335 (determinate) and MACS-124 (semideterminate). The growth regulator treatments increased total dry matter production and BMD in both determinate and semideterminate soybean genotypes. The application of growth retandants, TIBA, mepiquat chloride and cycocel were more beneficial in terms of translocation of photoassimilates towards developing reproductive parts as compared to growth promoter kinetin and control. The genotype JS-335 recorded significantly higher percentage of dry weight of reproductive parts and higher shelling percentage as compared to the genotype MACS-124 which was mainly due to its determinate growth habit.

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