UV-B增强对冬小麦和菠菜影响的对比试验  

Contrast Experiments of Effects of Enhanced UV-B Radiation on Wheat and Spinach

作　　者：李曼华[1] 郑有飞[1] 

机构地区：[1]南京信息工程大学环境科学系,江苏南京210044

出　　处：《南京气象学院学报》2004年第6期800-805,共6页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金资助项目(40175029);海外青年学者合作研究基金资助项目(40028503);江苏省"333"工程资助项目

摘　　要：通过大田试验对比研究了紫外辐射UV-B增强对冬小麦和圆叶菠菜株高、叶面积指数、干物质累积量的影响以及叶绿素和类黄酮含量的变化。结果表明:紫外辐射UV-B增强对冬小麦和圆叶菠菜株高、叶面积指数、干物质累积有着明显的抑制作用,同时还使叶绿素含量下降,类黄酮含量增加。对比试验也表明,UV-B辐射对小麦株高、叶面积、干物质积累以及叶绿素和类黄酮含量的影响小于对菠菜的影响。Influences of the intensified Ultraviolet radiation(UV-B radiation,280～320nm) on wheat and spinach were compared and analyzed in this paper.Results indicate that the enhanced UV-B tends to suppress the plant height and dry matter accumulation of wheat and spinach,to reduce the chlorophyll content and leaf area,and to raise the flavonoid content.In addition,field experiments also show that impacts of enhanced UV-B on wheat are smaller than that on spinach.

关 键 词：冬小麦 株高 干物质累积 圆叶菠菜 对比试验 叶面积指数 UV—B 含量 影响 抑制作用 

分 类 号：S512.1[农业科学—作物学] S636.1