小麦二系混合种的产量优势及其成员品种的生态组合力研究  

Studies on the Yield Superiority and Ecological Combining Ability of Components in Binary Mixtures of Wheat

作　　者：傅兆麟 俞世蓉[1,2] 吴兆苏 

机构地区：[1]山东滨州地区农科所,256615 [2]南京农业大学,210014

出　　处：《种子》1994年第6期23-25,共3页Seed

摘　　要：利用3个耐盐小麦品种和4个普通丰产品种,按不完全双列混配法等量混配成12个二系混合种,在花碱地上研究了小麦二系混舍种的混合优势及其7个成员品种的生态组合力。结果表明,小麦二系混合种的混合优势普遍存在,且组合间的混合优势差异显著,平均优势幅度为—4.5％～20％,超亲优势为—12.3％～16.8％;生态组合力分析表明,成员品种间生态组合力差异显著,同一成员品种在不同的环境中生态组合力表现亦有差异。因此,在混配小麦二系混合种时,应选择生态组合力好的成员品种进行混配,这样会选出混合优势强的高产二系混合种。The yield superiority and ecological combining ability of components for binary mixtures were studied with 12 binary mixtures formed in incomplete diallel ways from 3 salt-enduring and 4 non -salt - enduring wheat pureline cultivars on piebald saline - alkali soil. The result showed that the mixing superiority was generally exsistence for binary mixtures, and difference was significantly between combinations. The average of superiority was from- 4. 5% to 20% , and ultracomponent superiority from- 1 2. 3% to 16. 8%. The Analysis of ecological combining ability showed that the ecological combining ability was significantly different between components for the same site, and between sites for a same component. Thus, high yield binary mixtuers with strong mixing superiority will be selected as we select the components cultivars with good ecological combining ability to form binary mixtures.

关 键 词：小麦 二系混合种 混合优势 生态组合力 

分 类 号：S512.102[农业科学—作物学]