Abstract:
An experiment was conducted at two locations in Tel Hadya and Breda during year 2003 - 2004 growing season, to evaluate the yield performance and some agronomic traits of 158 barley doubled haploid for drought tolerance. An alpha- lattice with two replications design with two replications was used and 11 agronomic traits were recorded. Narrow sense heritability values were obtained ranging from 0.23 to 0.85 in Tel-Hadya and 0.16 to 0.74 in Breda. The highest heritability was obtained for 1000 kernel weight and then for days to heading in both environments, indicating that these traits are controlled by additive effects. The correlations between grain yield with peduncle length, extrude of spike, days to maturity, number of kernel per spike and 1000 kernel weight were significant in both Tel Hadya and Breda. The best DH lines when compared with the best parent showed significantly higher values for plant height, peduncle length, extrude of spike, spike length, 1000 kernel weight and grain yield in both environments. Because of low genetic gain and heritability for grain yield compared to other characters, selection based on yield components is recommended.
Page(s):
694-697
DOI:
DOI not available
Published:
Journal: International Journal of Agriculture and Biology, Volume: 8, Issue: 5, Year: 2006