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DCPTA对大豆幼苗生长的调控 大豆科学 2016,35 (1) 86-90
Position: Home > Articles > Regulation of DCPTA on Soybean Seedling Growth under Drought Stress Soybean Science 2016,35 (1) 86-90

干旱胁迫下DCPTA对大豆幼苗生长的调控

作  者：
李馨园
单  位：
黑龙江省农业科学院齐齐哈尔分院
关键词：
干旱胁迫;大豆幼苗;DCPTA;抗旱性;光和特性;保护酶
摘  要：
以嫩丰20为试验材料,在温室和盆栽条件下,以清水为对照,用15%的PEG-6000模拟干旱条件,设置4个浓度(0,20,40和60 mg·L~(-1))的DCPTA溶液处理进行叶面喷施,考察干旱胁迫下其对大豆幼苗叶片光合特性、保护酶以及叶绿素荧光特性的影响。结果表明:DCPTA处理提高了苗期大豆叶片光合速率、蒸腾速率、气孔导度和叶绿素含量,降低了胞间CO_2浓度;提高了最大荧光量(Fm)、PSⅡ的最大光能转换速率(Fv/Fm)和光化学淬灭系数(q P);降低了非光化学淬灭系数(q N);增加了保护酶活性;并促进了脯氨酸的积累。过氧化氢酶(CAT)活性和脯氨酸含量以60 mg·L~(-1)为最优处理,其余指标均以40 mg·L~(-1)处理为最优。
译  名：
Regulation of DCPTA on Soybean Seedling Growth under Drought Stress
作  者：
LI Xin-yuan;Qiqhaer Branch of Heilongjiang Academy of Agricultrral Science;
关键词：
Drought stress;;Soybean seedling;;DCPTA;;Drought resistance;;Chlorophy fluorescence characteristics;;Protective enzymes
摘  要：
The objective of this study is to determine the mechanisms of soybean seedlings leaf photosynthetic characteristics,protective enzymes and chlorophyll fluorescence characteristics regulation under drought resistance by foliar application of tertiary amine active DCPTA. Nenfeng 20 growing in pot under greenhouse was treated by 15% PEG-6000 to simulate drought conditions. Four different concentrations were used as treatments,including 0,20,40 and 60 mg·L~(-1)and water was used as control. The result indicated that the photosynthetic rate,transpiration rate,stomatal conductance and chlorophyll content,as well as Fm,Fv/Fm and q P increased significantly while the intercellular CO_2 concentration and q N decreased after DCTA treatment. DCTA also promoted the activity of protective enzymes and the accumulation of proline in soybean leaves. 60 mg·L~(-1)was the most optimized concentration of CAT and proline,while 40 mg·L~(-1)was the optimum treatment for other parameters.

相似文章

导出引用
计量
文章访问数: 5
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