钙减轻紫外辐射伤害小麦幼苗的研究  

Alleviation of Damage on Wheat Seedlings Under Ultraviolet B-Radiation in the Presence of Calcium

作　　者：黄晓华[1] 周青[2] 马育国[3] 赵姬[3] 戴玉锦[3] 

机构地区：[1]南京师范大学化学与环境科学学院,江苏南京210024 [2]江南大学生物工程学院,江苏无锡214036 [3]苏州铁道师范学院,江苏苏州215009

出　　处：《农业环境保护》2001年第6期457-458,共2页Agro-Environmental Protection

基　　金：南京师范大学资源生物技术省级重点实验室与苏州铁道师院学生创新研究二项基金资助

摘　　要：采用室内水培实验方法,研究了紫外辐射(UV-B,280—330nm)对小麦幼苗的伤害与钙缓解紫外辐射伤害小麦幼苗的效应。结果表明,在紫外辐射胁迫下,低钙水平小麦的根长,根体积,根鲜重、干重,根数,苗高,叶面积,伤害面积,叶鲜重、干重等生长指标均明显低于对照植株。而高钙处理的小麦幼苗,各种生长指标的降幅低于低钙水平小麦幼苗。表明钙具有缓解紫外辐射伤害小麦幼苗的效应。Mitigative effect of calcium on wheat seedlings under UV-B(280—330 nm) radiation was studied. The results showed that the growth indexes of wheat seedlings on root length, volume, fresh weight, dry weight, and plant height, leaf number, leaf area, leaf damage area, leaf fresh weight and leaf dry weight with low calcium treatment were obviously reduced than wheat seedlings in control under UV-B stress. The decreasing degree of growth indexes for wheat seedlings in high calcium treatment were lower than in low calcium treatment. It is concluded that calcium can mitigate the damage of UV-B radiation on wheat seedlings.

关 键 词：UV-B伤害 小麦幼苗 生长指标 钙 紫外辐射 植物伤害 

分 类 号：S512.1[农业科学—作物学] X835[环境科学与工程—环境工程]