The Ohio State University Columbus, Ohio, U.S.A.
**Present address: Indian Institute of Horticultural Research, 255, Upper Palace Orchards, Bangalore-6, INDIA.
*Based on part of a thesis submitted to the Ohio State University, Columbus, Ohio, U.S.A. in partial fulfilment of the requirements for the award of Ph.D. degree.
The x genotype of Kerr gf, Ghost Walter-15, Accession 160 and aw ol sp is diagnosed. Kerr gf and Ghost are xx, Walter-15, Accession 160 and aw ol sp are XX. In this materials only two alleles of x exists; the x and X. The x locus is assigned to the gh-j interval of the V linkage group. It is 6.3 units from j and 10.6 units from gh. The sequence of these loci is gh-x-j.
