Department of Genetics and Plant Breeding, Banaras Hindu University, Varanasi, India
2Present Address: Deptt. of Agricultural Botany, S. D. J., Post-Gradutte College, Chandesar, Azamgarh, U.P., India.
3Present Address: Deptt. of Genetics & Plant Beeeding, Assam Agricultural University, Jorhat Assam, India.
1Part of the Ph.D. thesis submitted by the senior author to the Banaras Hindu University.
Genetic analysis of four interchanges in barley cultivar K 12 was carried out to locate the breakpoints in chromosome arms, utilizing F2 data. T 2-6 was located in the long arm of chromosome 2 and short arm of chromosome 6 while T 6-7 was located in the long arm of the two chromosomes. T 3-7 was placed in the short arm of the two chromosomes. Location of breakpoint in T 2-4 was in the short arm of chromosome 2. Average ovule sterility in inter-change heterozygotes was found to be 28.7%.