玉米不同杂交组合抗旱性、丰产性的研究

Comparing Analysis of Drought Resistance and Yield Potential in Different Hybrid Maize Varieties

20 0 3年通过田间抗旱鉴定试验 ,采用模糊函数法对不同玉米杂交组合的抗旱性进行比较分析及综合鉴定评价 ,2 0 0 4年进行品比试验研究 ,比较分析各组合的丰产性。结果表明 :不同杂交组合之间除抗旱性表现不同外 ,产量也达到了极显著差异 ,其中S1 1× 411、411× 79 1E、S1 1× 112 5、79 1E× 411、S1 1× 79 1E、79 1E× 185 99、79 1E×S1 1、S1 1× 5 3 11、S1 1×S7913的抗旱性和丰产性表现较好 ,抗旱性在Ⅲ级中抗以上 ,产量达 942 0kg/hm2 以上 ,是抗旱高产杂交组合 ,可以在生产上加以应用 ;而 185 99×苏 11、185 99× 44 9和S1 1×苏 11的抗旱性和丰产性表现较差 ,生产上应用价值不大。

The drought resistance of several hybrid maize materials were analyzed and evaluated by method of subordinate function values and their fertility was compared in field test. The result showed that S1-1×411, 411×79-1E, S1-1×1125, 79-1E×411, S1-1×79-1E, 79-1E×18599, 79-1E×S1-1, S1-1×5311 and S1-1×S7913 all had the yield beyond 9420kg/hm2 and drought resistance was above level Ⅲ. They can be all extended as high-yield material with drought resistance. 18599×Su 11,18599×449 and S1-1×Su 11 were adversity susceptible varieties.