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Sheshnath Mishra A. K. Sharma Vishwanath Sharma

Abstract

A set of 40 genotypes of muskmelon (Cucumis melo L.) were evaluated in a randomized block design with two replications under different water regimes during summer 2012 at the agriculture research station Bee-chwal, Bikaner, Rajasthan, India to study genetic variability among the traits to determine selection criteria for breed-ing programmes for fruit yield and related characters. The results reported that drought stress caused reduction in fruit yield and most of the characters studied. Significant variations for all the characters were found under different water regimes (non-stress, 50% and 25%). High genotypic (GCV) and phenotypic (PCV) coefficient of variations were observed for fruit yield per plant, fruit weight per plant, vine length and proline content in non-stress, 50% and 25% water stress conditions respectively. High estimates of heritability along with high genetic advance as percent-age of mean over the characters was recorded for fruit weight (128.79, 164.05, and 161.15), proline content (42.50, 72.86 and 69.26) and fruit yield per plant (149.61, 186.91 and 184.12) in both the non-stress and stress conditions. This shows that these traits were under the control of additive genetic effects. Therefore, it was concluded that se-lection for these traits should lead rapid genetic improvement of the material.

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Keywords

Genetic advance, Heritability, Muskmelon, Variability, Water regimes

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How to Cite
Mishra, S., Sharma, A. K., & Sharma, V. (2017). Genetic variability studies in response to drought under different water regimes in muskmelon (Cucumis melo L.). Journal of Applied and Natural Science, 9(3), 1744-1750. https://doi.org/10.31018/jans.v9i3.1432
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