Abstract:

In order to evaluate the new sorghum male sterility lines scientifically and accurately, provide parent materials for breeding of high yield and high quality new varieties, the 21 crossing combinations were made by 3three sterility lines and seven restoring lines with the method of non-complete diallel crossing model. Combining ability and the genetic effects of 6 characters on plant height, ear length, 1000 grain weight etc. were analyzed by DPS data statistics. The results showed that, in the three sterility lines, 10349A2 exhibited the highest general combining ability in ear length, 1000 grain weight, production. With the relative volume of effectiveness were 2.993, 6.381, 2.986, 4.658. 10349A2 exhibited the highest general combining ability in plant height, growth period. With the relative volume of effectiveness were 0.932, 3.420. The hybrid combination of 10337A2×Liao 0145(fu) and 10349A2×0-30 Honglibian presented better performance. The order of ratio of additive genetic variance to genotype variance was: weight per spike > plant height > production > 1000 grain weight > growth period > ear length.