【摘要】 株高是大豆最重要的株型性状之一。本研究以大豆株高突变体z110及其野生型吉大豆5号为材料,分析了突变体株型变化以及产量潜力。结果表明,与野生型相比,突变显著降低了叶片的叶绿素含量、叶片含氮量,对光合速率无显著影响;突变显著降低了株高、平均节间长度、平均叶柄长度,显著增加了节数、分枝数,且第4节后叶柄长度随着节数的增加而逐渐缩短;突变使百粒重显著降低,而使单株产量、单株粒数、单株荚数等性状显著增加,表现出一定的增产潜力。更多还原

【Abstract】 Plant height is one of the most important plant architecture traits in soybean. In this study, dwarf mutant z110 and its wild type, named Jidadou 5, were used as materials to analyze the traits changes and yield potential of mutant. The results showed that the chlorophyll content and leaf nitrogen content of the mutation significantly reduced, but photosynthetic rate was no significant affected. The plant height, the average inter-node length, the average petiole length of the mutation significantly reduced, but the node number of main stem, branch number significantly increased. After the fourth node, the length of the petiole gradually shortened with the increasing of the number of node. The 100-seed weight of the mutation significantly decreased. The yield per plant, seed number of per plant, pod number of per plant increased significantly, which showed that z110 had a certain potential for increased yield.更多还原