生命科学研究2001，Vol.5Issue(2)：155-159,5.
野外条件下光强对盾叶薯蓣影响的初步研究
Preliminary Studies on the Influence of Light Intensity on Dioscorea zingiberensis in Field
朱杰英 1王菊凤 1陈军 1陈功锡 1李鹄鸣1
作者信息
摘要
Abstract
Dioscorea zingiberensis grown in field was found to be infl uenced by l ight intensities with cage experiment. The germination ratio of rooted-stem under weak light (141～215μ mol*m- 2*s-1) was only 55%, while those exposed t o stronger sun light were about 100%. Water contents in leaves decreased with the increase of light intensities.Leaf area increased with the decrease of light intensities with an exception of weakest light condition. Under 5 25～615 μmol*m-2*s-1 of light, the content of malondialdehyde (MDA) in leaves a nd the peroxidase (POD) activities were the lowest,whereas the above-ground bi oma ss were the highest.The highest subterranean biomass was obtained in conditio n of 913～1 004 μmol*m-2* s-1 of light exposure .关键词
盾叶薯蓣/光强/叶面积/丙二醛/过氧化物酶/生物量分类
农业科技引用本文复制引用
朱杰英,王菊凤,陈军,陈功锡,李鹄鸣..野外条件下光强对盾叶薯蓣影响的初步研究[J].生命科学研究,2001,5(2):155-159,5.
