【摘要】 选取构建水稻分子连锁图谱的两个亲本JX17和ZYQ8为材料 ,在低磷胁迫下 ,对磷营养效率有关指标进行分析 .结果表明 ,JX17在与磷吸收效率有关的生理指标 ,如根干重、根分泌质子、根分泌有机酸等方面 ,都明显优于ZYQ8.说明JX17表现较高的相对干物重 ,低磷胁迫反应不敏感 .图 1表 4参 17更多还原

【Abstract】 Two rice genotypes, JX17 and ZYQ8, which are the parents of 127-line DH population for construction of molecular linkage map, were chosen to detect their response to low phosphorus stress. The results indicated that JX17 had advantages over ZYQ8 on some traits associated with phosphorus uptake efficiency, such as root dry weight, root exuded acid phosphatase activity,root exuded organic acids and proton. Because of these properties, JX17 had relatively high total dry weight and was regarded as the non-sensitive genotype to low phosphorus stress. Fig 1, Tab 4, Ref 17更多还原