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Pak. J. Bot., 46(1): 239-243, 2014. |
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Updated: 15-01-14 | ||||
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HERITABILITY STUDIES FOR SEED QUALITY TRAITS IN INTROGRESSED SEGREGATING POPULATIONS OF BRASSICA
SIDRA IQBAL, FARHATULLAH*, ADNAN NASIM, MAHWISH KANWAL AND LAILA FAYYAZ
Abstract:
Estimation of genetic parameters in the context of trait
characterization is an essential component of future targeted crop
improvement programs. Collection of knowledge about genetic behavior
such as genetic variability and heritability etc., of the germplasm is
the basic step for initiation of any breeding program. Genetic
variability and Broad sense heritability for various seed quality traits
in 10 brassica genotypes and their 12 F2 progenies comprising
of introgressed hybrids were studied. The genotypes had highly
significant variation for oil content, protein, glucosinolates contents,
oleic, linolenic and erucic acid contents. Glucosinolates content and
erucic acid showed high heritability in all F2 populations,
while rest of the traits showed variable trends. The cross combination
547 x 118 (B. napus x B. campestris) proved to be a good
interspecific hybrid that had high proportion of introgression and has
high heritability for beneficial traits. The individual plants having
combination of desirable traits were also identified from the F2
populations. Department of Plant Breeding and Genetics, The University of Agriculture, Peshawar, Pakistan *Corresponding author’s e-mail: drfarhat@aup.edu.pk |
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