中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 干旱胁迫下早熟禾幼苗几种抗旱性指标的变化 安徽农业科学 2009,37 (34) 17258-17259
Position: Home > Articles > Changes of Several Resistance Indexes of the Seedlings of Poa pratensis Under Drought Stress Journal of Anhui Agricultural Sciences 2009,37 (34) 17258-17259

干旱胁迫下早熟禾幼苗几种抗旱性指标的变化

作  者：
汝红;王瑞贞;常海飞;冯晓东
单  位：
延安大学生命科学学院;陕西省西安市绿化养护管理处
关键词：
早熟禾;干旱胁迫;脯氨酸;丙二醛;过氧化物酶
摘  要：
[目的]探明干旱胁迫下早熟禾幼苗几种抗旱指标的变化规律。[方法]在干旱胁迫期间对早熟禾幼苗植株体内过氧化物酶活性、脯氨酸含量、丙二醛(MDA)含量的变化进行了研究。[结果]在干旱胁迫后期,早熟禾幼苗植株体内过氧化物酶活性、脯氨酸含量均有较高水平增加,有利于其抵抗干旱胁迫。在土壤含水量未达到5.4%前,MDA的含量无显著差异(P>0.05),膜伤害较小;但当土壤含水量降到5.4%时,MDA的含量显著上升。[结论]当土壤含水量降到5.4%时,膜结构遭到破坏,抗逆性下降,是导致早熟禾幼苗干旱死亡的主要原因。
译  名：
Changes of Several Resistance Indexes of the Seedlings of Poa pratensis Under Drought Stress
作  者：
RU Hong et al(Landscape garden bureau of Xian city,Xian,Shaanxi 710032)
关键词：
Poa pratensis;Drought stress;Proline;MDA ;POD
摘  要：
[Objective] The research aimed to probe into the influence of the drought stress on several resistance indices related to resistance to drought in the Seedlings of Poa pratensis.[Method] The activity of POD,the content of MDA and the electric conductivity in the Seedlings of Poa pratensis were investigated under the drought stress.[Result] During the drought stress,the activity of POD and the Pro content were remained a higher level which was good to resist the drought stresses,at the same time,before the soil moisture reached 5.4%,no significant differences in content of MDA(P>0.05),the injury of membrane was smaller;but when the soil moisture content was 5.4%,a significant increase in the concentration of MDA.[Conclusion] when the soil moisture content decreased to 5.4%,the structures of membrane was badly destroyed,the major cause of premature death was the decline of the drought resistance which was also the threshold of the seedlings of Poa pratensis under the drought stress.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46