ASSESSMENT OF GENETIC VARIABILITY AND INTERRELATIONSHIP
BETWEEN MALT YIELD AND SEED TRAITS IN TWO-ROWED AND
SIX-ROWED BARLEY (HORDEUM VULGARE L.)
NIKETA YADAV, S. R. VERMA, R. P. SAHARAN, S. S. VERMA AND SATBEER SINGH
Department of Genetics & Plant Breeding
CCS Haryana Agricultural University
Hisar-125 004 (Haryana) India
*(e-mail : y.niketa@gmail.com)
(Received : 30 July 2015; Accepted : 25 September 2015)
SUMMARY
A total of 20 genotypes of two-rowed and six-rowed barley were used to study the genetic variability for different seed traits as well as their interrelationship with malt yield. Significant differences were observed among the genotypes regarding all the characters studied. Estimates of heritability, genotypic and phenotypic coefficients of variability were found higher in electrical conductivity followed by accelerated ageing and standard germination. High genetic advance coupled with high heritability was also found for electrical conductivity, accelerated ageing and standard germination. In pooled association analysis, malt yield had positive and significant correlation with accelerated ageing and standard germination. However, in independent analysis of two-rowed barley, malt yield was found negatively and significantly correlated with seedling vigour and seedling length. Path analysis showed that accelerated ageing and standard germination had the highest direct effect on malt yield indicating the importance of these traits in selection and crop improvement
for malt yield.
Key words:Variability, association, path analysis, seed traits, malt yield, Hordeum vulgare