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International Journal of Plant Breeding and Genetics
  Year: 2012 | Volume: 6 | Issue: 4 | Page No.: 238-244
DOI: 10.3923/ijpbg.2012.238.244
Variability, Heritability and Genetic Advance in Egyptian Sweet Melon (Cucumis melo var. aegyptiacus L.) Under Water Stress Conditions
E.A. Ibrahim

Abstract:
The objective of the study was to generate genetic information, which can help in breeding sweet melon cultivars with improved drought tolerance. Thirteen sweet melon genotypes collected from different places in Egypt were evaluated for variability, heritability and genetic advance. The experimental material was sown in a randomized complete blocks design with three replicates under irrigation as well as drought stress conditions. Significant differences were observed among genotypes for all the studied traits under normal irrigation and water stress. The irrigationxgenotypes interactions were found to be significant for all the studied traits except fruit length. The estimates of phenotypic coefficient of variation were higher than the estimates of genotypic coefficient of variation for all the characters, which suggested that the apparent variation is not only due to the genotypes but also due to the influence of environment. High heritability coupled with high genetic advance was noted for fruit weight and yield per plant. This provided that these parameters were under the control of additive genetic effects. This indicates that selection should lead to fast genetic improvement of the material. Moreover, magnitude of mean performance for all the traits decreased in water stress environment. Fruit length was very less affected by water stress, but yield per plant was very high affected by water stress.
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How to cite this article:

E.A. Ibrahim , 2012. Variability, Heritability and Genetic Advance in Egyptian Sweet Melon (Cucumis melo var. aegyptiacus L.) Under Water Stress Conditions. International Journal of Plant Breeding and Genetics, 6: 238-244.

DOI: 10.3923/ijpbg.2012.238.244

URL: https://scialert.net/abstract/?doi=ijpbg.2012.238.244

 
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