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晚秋刈割对不同秋眠类型苜蓿根系游离脯氨酸含量的影响
引用本文:刘磊,陈立波,田占标,卫智军.晚秋刈割对不同秋眠类型苜蓿根系游离脯氨酸含量的影响[J].中国草地学报,2007,29(2):112-115.
作者姓名:刘磊  陈立波  田占标  卫智军
作者单位:1. 中国农业科学院草原研究所,内蒙古,呼和浩特,010010;中国农业科学院研究生院,北京,100081
2. 中国农业科学院草原研究所,内蒙古,呼和浩特,010010;内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010018
3. 内蒙古政府外事办,内蒙古,呼和浩特,010098
4. 内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010018
基金项目:国家高技术研究发展计划(863计划)
摘    要:对三种不同秋眠类型9个苜蓿品种进行晚秋的最后1次刈割试验,研究不同刈割时间对苜蓿根系游离脯氨酸含量的影响。结果表明,在不同日期刈割的不同秋眠类型的苜蓿,其根系游离脯氨酸含量一直呈上升趋势,在11月20日达到峰值,但在此时不同秋眠类型苜蓿根系游离脯氨酸含量没有显著差别,此后游离脯氨酸含量开始下降,到翌年苜蓿开始返青时再次上升,低秋眠类型苜蓿根系游离脯氨酸含量显著地高于高秋眠类型苜蓿。

关 键 词:苜蓿  晚秋刈割  不同秋眠类型  游离脯氨酸
文章编号:1673-5021(2007)02-0112-04
修稿时间:2006-08-282006-11-25

Changes of Free Proline in Roots of Different Fall Dormancy Alfalfa by Later Autumn Cutting
LIU Lei,CHEN Li-bo ,WEI Zhi-juna.Changes of Free Proline in Roots of Different Fall Dormancy Alfalfa by Later Autumn Cutting[J].Chinese Journal of Grassland,2007,29(2):112-115.
Authors:LIU Lei  CHEN Li-bo  WEI Zhi-juna
Institution:1. Grassland Research Institute, CAAS, Hohhot 010010, China ; 2. Graduate School of CAAS, Beijing 100081,China;3. College of Ecology and Environmental Science, Inner Mongolia Agricultural University ,Hohhot 010019 , China
Abstract:The proline dynamics in root of alfalfa with different fall dormancy were studied after last cutting. The result showed that the proline in root reached the climax in November 20th, at this time, there was no significant difference among three different fall dormancy alfalfa. Then, the free proline content began to decline until next year before regrowth, and rose up again. The free praline in low fall dormancy was significantly higher than that of high fall dormancy alfalfa, so there was some relationship between free proline and regrowth.
Keywords:Alfalfa  Cutting in later autumn  Types of fall dormancy alfalfa  Free proline
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