作　　者： ; ;

机构地区： 东北农业大学农学院大豆研究所

出　　处： 《大豆科学》 1997年第4期288-292,共5页

摘　　要： 以６个大豆杂交组合的Ｆ２、Ｆ３、Ｆ４代为材料，以高产为目标，以系谱法在高、低肥下同时进行连续世代选择。１９９４年在两种肥力下每组合各决选２个最优品系。１９９５年在３种肥力下，以同一方案研究了不同土壤肥力的选择效应。结果表明，高、低土壤肥力具有不同的选择效应。高肥更利于选择高肥下产量较高，低肥下产量较低的品系；低肥更利于选择低肥下产量较高，高肥下产量较低的品系；高肥比低肥在选择两种肥力下产量均较高的品系时略有优势。高肥下选择的品系具有较大的产量潜力。高肥下选择的品系抗倒伏性强，低肥下选择的品系则表现出较差的抗倒伏性。 The F 2,F 3 and F 4 lines of six soybean crosses were selected, with the objective of high yield and by use of the method of pedigree and under high or low fertility site for three successive years. Two best lines were selected from each cross in each fertility site in 1994. In 1995, the lines were tested under high-,medium and low fertility with the same experimental design (CRB) to study the selection effects of different fertility sites. The results suggested that high and low fertility had different selection effects. High fertility was more effective for selecting lines which had higher yield in high fertility and lower yield in low fertility. Low fertility was better for selecting lines,which had higher yield in low fertility. The high fertility was somewhat better than low fertility for selecting lines which had higher yield in both high and low fertility. It revealed that the lines selected from high fertility had superior yield potential. Lodging resistance of the lines selected from high fertility was higher than that of lines from low fertility.

关 键 词： 品系 土壤肥力 选择效应 大豆

领　　域： [农业科学]