栽培密度对有色稻抽穗后剑叶一些衰老生理特性的影响  

Effects of Different Density on Some Senescence Physiology Characteristics of Flag Leaf in Colored Rice after Heading

作　　者：张荣萍[1,2] 戴红燕[1] 马均[2] 蔡光泽[1] 彭汉涛[1] 

机构地区：[1]西昌学院,四川西昌615013 [2]四川农业大学水稻研究所,四川温江611130

出　　处：《西昌学院学报（自然科学版）》2009年第3期13-16,共4页Journal of Xichang University(Natural Science Edition)

基　　金：四川省西昌学院课题"几种特种稻生理特性研究"(项目编号:YJSA0601);四川省教育厅重点科技项目"有色水稻新品种选育及配套技术研究"(项目编号:2005A044)

摘　　要：以黑糯和红粳两个有色稻为材料,设5种不同的栽培密度,研究了不同栽培密度对有色稻抽穗后剑叶的叶绿素含量、可溶性蛋白质含量和SOD酶活性等一些衰老生理指标的影响。结果表明:随栽培密度的增加,有色稻抽穗后剑叶叶绿素a、b含量、可溶性蛋白质含量和SOD酶活性均呈下降趋势,而叶绿素a/b值和丙二醛含量呈上升趋势,且高密度E处理下这些指标变化幅度较大,衰老加快。试验还表明,有色稻抽穗后剑叶叶绿素含量、SOD酶活性、丙二醛含量等衰老生理指标的变化幅度与品种的耐密性密切相关。Some senescence physiology characteristics of flag Leaf in colored rice, such as the content of chlorophyll and soluble protein and the SOD activities, were studied under five different densities with two colored rice of black glutinous and red japonica. The results indicated that with increasing planting density, the content of chlorophyll a and b, the soluble protein content and the SOD activities were decreased, but the ratio of Chla-Chlb and MDA content were increased, and these senescence physiology characteristics of E treatment were deceased with a large variation scope and early senescence of flag leaf. These results suggested that chlorophyll content, MDA content and the SOD activities are correlated significantly to density resistance of colored rice.

关 键 词：有色稻 栽培密度 剑叶 衰老生理 

分 类 号：S511[农业科学—作物学]