矮生菜豆叶片衰老过程中碳氮代谢指标的变化  

Changes in Carbon-nitrogen Metabolism Indices of Kidney Bean Leaves during Leaf Senescence

作　　者：韩旭[1] 宋述尧[1] 

机构地区：[1]吉林农业大学,吉林长春130118

出　　处：《长江蔬菜》2009年第05X期42-44,共3页Journal of Changjiang Vegetables

基　　金：吉林省重大科技攻关项目

摘　　要：以矮生菜豆品种美国贡豆和哈菜豆六号为试材,研究了矮生菜豆叶片衰老过程中碳氮代谢指标的变化。试验结果表明,矮生菜豆叶片展开至衰老过程中,叶片全氮含量逐渐下降,而硝酸还原酶(NR)活性和叶绿素、可溶性蛋白质、可溶性糖、游离氨基酸含量呈抛物线型变化,且峰值均出现在叶片展开后14d左右。Changes in carbon-nitrogen metabolism indices in kidney bean leaves during leaf senescence were studied in Meiguogongdou and Hacaidou No.6. The main results were as follows： during the process of leaf growth and senescence, total N content decreased gradually. But changes in many nitrogen metabolism indices such as filtrate reductase （NR） activity, chlorophyll, soluble protein （Pr）, carbohydrate and free amino acid content in leaves, altered like a parabola, and the maxima all appeared on the fourteenth day after leaf unfolding.

关 键 词：矮生菜豆 叶片衰老 碳氮代谢 

分 类 号：S643.1[农业科学—蔬菜学] S511[农业科学—园艺学]