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VOL. 7, ISSUE 2 (2025)
Response of contrasting groundnut genotypes to water deficit during Pre- and Post-flowering stages
Authors
Suraj Sunilrao Kulkarni, S R Gadakh, R A Gaikwad, S R More, K M Boraiah
Abstract
Groundnut (Arachis hypogaea L.) is an
important crop globally, providing food, oil, and fodder, yet its productivity
is severely impacted by drought stress. This study investigates the effects of
drought at two critical growth stages—pre-flowering and post-flowering—on the
performance of different groundnut genotypes. A set of groundnut genotypes was
exposed to deficit moisture stress in controlled pot experiment at both the
stages, and the resulting variations in growth and yield parameters were
analysed. Results indicate significant genotype-by-environment interactions,
with certain genotypes displaying better tolerance to drought stress. Most of
the traits investigated showed a significant decrease under pre-flowering and
post-flowering drought stress conditions. The study highlights that drought
stress during the pre-flowering stage leads to a marked reduction in growth,
while post-flowering stress primarily affects overall yield. Based on Stress
Tolerance Index (STI) and Stress Susceptibility Index (SSI) values, the
genotypes Kadiri Lepakshi and Phule Unnati were identified as tolerant and
genotype ICG-297 identified as susceptible. These genotypes can be utilized in
breeding programme to develop drought-tolerant groundnut varieties, offering
potential solutions for improving productivity in regions affected by drought
stress.
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Pages:69-74
How to cite this article:
Suraj Sunilrao Kulkarni, S R Gadakh, R A Gaikwad, S R More, K M Boraiah "Response of contrasting groundnut genotypes to water deficit during Pre- and Post-flowering stages". International Journal of Agriculture and Plant Science, Vol 7, Issue 2, 2025, Pages 69-74
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