不同选择方法在海南岛对三种类型大豆杂交材料选择效果的研究  

A STUDY ON THE EFFECTIVENESS OF DIFFERENT SELECTION METHODS IN CROSSES AMONG THREE PARENTAL TYPES OF SOYBEANS IN HAINAN ISLAND

作　　者：李新海[1] 王金陵[1] 杨庆凯[1] 

机构地区：[1]东北农业大学大豆研究所

出　　处：《大豆科学》1997年第3期199-204,共6页Soybean Science

摘　　要：以不同进化程度的三种类型大豆四个品种配制的三个杂交组合后代为材料，采用系谱法、组合内选优株法和随机选株法在海南岛按相同目标进行定向选择，以研究大豆南繁加代的选择方法及相应的组合类型。结果表明，在海南岛各种选择方法入选材料的生育期、株高、产量性状的实际遗传进度均很小，选择效果不大；而抗倒伏性、炸荚度及种粒大小的遗传进度较大。在野生、半野生组合内，系谱法或组合内选优株法明显优于随机选株法。在海南岛进行大豆南繁时，对于野生、半野生组合后代建议采用组合内选优株法。Progenies of crosses among three obviously different types of soybeans were made for selection by following methods: pedigree selection, optimum selection within a cross and random selection with similar purposes in Hainan Island. The objective of this study was to compare the effectiveness of three selection methods, and to find an appropriate method for soybean breeding corresponding to the specific type of cross in Hainan Island. The experimental results pointed out that there were no significant differences on genetic advance in maturity, plant height, pods,seeds and yield per plant. However, there were larger differences in size of 100-seed weight, lodging,pod-splitting index among the materials selected by three methods. In most cases, materials selected by prdigree method and optimum selection from crosses containing wild of semi-wild soybean paren showed faster genetic advance than that by random selection method. Based on the results of the study, the optimum selection method within a cross was suggested the interspeciffic crossing of soybeans in Hainan Island.

关 键 词：大豆 杂交育种 组合类型 选优株法 海南岛 

分 类 号：S565.103.5[农业科学—作物学]