Legume Research, volume 36 issue 3 (june 2013) : 250-254
EFFECT OF HIGH TEMPERATURE ON GROWTH, BIOMASS AND YIELD OF FIELD PEA GENOTYPES
Vijaylaxmi
1Division of Basic Science
Indian Institute of Pulses Research, Kanpur – 208 024, India
Chief Editor:
J. S. Sandhu
Vice Chancellor, SKN Agriculture, University, Jobner, VC, NDUAT, Faizabad, Deputy Director General (Crop Science), Indian Council of Agricultural Research (ICAR), New Delhi
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.
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