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Legume Research

EFFECT OF HIGH TEMPERATURE ON GROWTH, BIOMASS AND YIELD OF FIELD PEA GENOTYPES

Article Id: ARCC237 | Page : 250-254
Citation :- EFFECT OF HIGH TEMPERATURE ON GROWTH, BIOMASS AND YIELD OF FIELD PEA GENOTYPES.Legume Research.2013.(36):250-254
Vijaylaxmi vijaylaxmi01@yahoo.com
Address : Division of Basic Science Indian Institute of Pulses Research, Kanpur – 208 024, India

Abstract

A field experiment was conducted during rabi (winter) season of 2008-09 and 2009-10. Fifteen field pea genotypes were sown under normal and late seeded condition and the crop was irrigated. Crop was monitored for membrane stability index at podding, plant height at podding, total biological yield, and seed yield and harvest index. The observed parameters showed significant variation for seeding dates, genotypes and their interactive effects. Under late seeded condition crop was exposed to high temperature during flowering and seed filling stages. Which induced reduction in mean membrane stability index (28.8%), plant height (60.2%) total biomass yield (61.7%), seed yield (68.9%) and harvest index (19.3%). The mean yield stability index was 80.7%. On the basis of minimum reduction in observed traits, genotypes KPF 103, DMR 15, IPFD 4-6, were found to be having comparatively higher amount of resistance towards high temperature stress. IPFD 99-7, IPFD 3-17, IPFD 2-6, IPFD 1-10, HUDP 16 and DPR 13 were adjudged to moderately resistant for high temperature stress as they were having more than 75.0% yield stability index.

Keywords

Fieldpea Heat susceptibility index High temperature tolerance Membrane stability index Seed yield Yield stability index.

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