Department of Crop Science, University of Guelph, Canada
*Present Address: Department of Agricultural Botany, SKN College of Agriculture, JOBNER (Jaipur), Rajasthan, India.
Online published on 25 January, 2012.
The F, hybrids in spring barley yielded significantly higher than their better parents at 2.5 cm. and 5.0 cm. plant to plant spacings. The increase in yield of the hybrids over their better parents ranged from 14 to 43%. Data indicated that the performance of the hybrids at the wider spacing may not be indicative of their performance at closer seeding. The correlation coefficients of some of the primary yield components with the yield were different for the varieties and the hybrids. Furthermore, the yield components contributing towards superiority of the different hybrids were not consistent. Since the degree of heterosis had no correlation with the yield of their better parents or the mid parent values, it can be concluded that heterotic hybrids could be obtained even with the high yielding varieties.
