IV.9 The genetic male sterile barley collection.
E.A. Hockett, Western Region, ARS, USDA and Plant and Soil Science Department, Montana State University, Bozeman, MT. 59715, U.S.A.
The selfed seeds from homozygous msg,,cy (2), msg,,dh (2), and msg,,dj (10) shown in Table 2 of last years report were planted at Bozeman in 1975 and all seeds produced sterile plants. This result confirmed selfing in these three genotypes.
Table 1 gives the data for three mutants found to be allelic with previously numbered male sterile mutants.
Table 1. Ratios of fertile to male sterile F1 plants from crosses of genes determined to be allelic.
Two new symbols msg,, dm and msg,, dn have been assigned since last years report to H. Ahokas in Finland. Since these mutants have not been grown at Bozeman, information on segregation ratio and selfing behavior is not available for our environment.
