Indian Society of Genetics & Plant Breeding

Climate change and maize productivity in north-western plains regions of India

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The full season maturity group grown during the monsoon
(kharif) season in ‘All India Coordinated Maize
Improvement Project’ trials from 1991 to 2012 in northwestern plains zone was analysed for grain yield for the
best check and best entries. The rainfall trends were
simultaneously analyzed in each month over years through
Mann and Kendall approach.The increase or decrease in
rainfall over years is not significant but the fluctuations
in rainfall in each month over years were significant in all
the months. In spite of rainfall fluctuations, there was
continuous improvement in the new genotypes developed
at ‘All India Maize Improvement Project’ especially in past
two decades in ‘zone II’ as well as Punjab state. The
performance of maize in AICMIP was higher in Punjab state
than in overall ‘zone II’. The new and improved hybrids
developed in the program every year were suitable for
changing climatic conditions.

Keywords: Monthly fluctuations, rainfall, temperature, Punjab, yield, zone


Year: 2014
Volume: 74
Issue: Supplementry Issue
Article DOI: 10.5958/0975-6906.2014.00891.8
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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