[Dependence of cross-pollination indices on genotype characteristics of winter common wheat]

Out-crossing indices (the out-rcrossing rate, the frequency of plants with cross-pollination and outcrossing intensity) in F2 plants of winter common wheat from the reciprocal cross B-16 x Odesskaya Krasnokolosaya were analysed using storage proteins as genetic markers. Outcrossing indices greatly differed depending on growth conditions. The out-crossing rate was 0,35 % (Odessa, 2000) and 5,11% (Kyiv, 2004). The highest out-crossing indices were detected in homozygotes for the presence of the rye 1BL/1RS translocation. The out-crossing indices in heterozygotes for the presence of the 1BL/1RS translocation were intermediate. Differences in the out-crossing indices were detected between populations of F2 plants derived from direct and reciprocal crossing. Different directions of these differences were noted for the out-rcrossing rate and the frequency of plants with cross-pollination, on the one hand, and out-crossing intensity, on the other hand.