Genetic variability and selection parameters in bottlegourd

摘要

Improvement in any crop depends on the magnitude of genetic variability and the degree of tmasmission of characters from one generation to the next. Beside this, the knowledge of association between yield and its contributing traits will be of great value in planning a breeding programme. But it does not give the exact position of the relative importance of direct and indirect effects of the various yield attributes. Path analysis facilitates the partitioning of correlation coefficients into direct and indirect effects of various characters on yield or any other attribute. Bottlegourd (Lagenaria siceraria (Mol.) Standl) is an important monoecious vegetable but very little information is available on its genetic potential for yield and yield contributing characters. Therefore, the present effort was made to investigate the extent of genetic variability and selection parameters viz., heritability in broad sense, genetic advance, correlations and path coefficient analysis for the eleven economically important characters of this crop.