| 30份老芒麦种质材料抗寒性研究 |
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| 引用本文： | 德英,赵来喜,穆怀彬.30份老芒麦种质材料抗寒性研究[J].草业科学,2011,28(1):90-93. |
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| 作者姓名： | 德英 赵来喜 穆怀彬 |
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| 作者单位： | 中国农业科学院草原研究所,内蒙古,呼和浩特,010010;农业部草原资源与生态重点开放实验室,内蒙古,呼和浩特,010010;中国农业科学院草原研究所,内蒙古,呼和浩特,010010;农业部草原资源与生态重点开放实验室,内蒙古,呼和浩特,010010;中国农业科学院草原研究所,内蒙古,呼和浩特,010010;农业部草原资源与生态重点开放实验室,内蒙古,呼和浩特,010010 |
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| 基金项目： | 2008年度中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)资助项目(2008-Z-1) |
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| 摘 要： | 对30份老芒麦(Elymus sibiricus )种质材料进行抗寒性比较,并筛选出老芒麦种内抗寒性强的种质材料.采用育苗盘育苗,在对照(28℃)及低温处理(5℃处理12 h)下测定叶片的相对电导率.试验结果表明,老芒麦抗寒性分为3级,包括抗寒性强、较强、中等.筛选出抗寒性强的种质材料25份,包括ES002、ES004...
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| 关 键 词： | 老芒麦 抗寒性 低温胁迫 伤害率 |
Winter hardiness of 30 germplasm materials of Elymus sibiricus |
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| DE Ying,ZHAO Lai-xi,MU Huai-bin.Winter hardiness of 30 germplasm materials of Elymus sibiricus[J].Pratacultural Science,2011,28(1):90-93. |
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| Authors: | DE Ying ZHAO Lai-xi MU Huai-bin |
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| Institution: | DE Ying1,2,ZHAO Lai-xi1,MU Huai-bin1,2(1.Grassland Research Institute of Chinese Academy of Agricultural Sciences,Inner Mongolia Hohhot 010010,China,2.Key Laboratory of Grassland Resources and Ecology,Ministry of Agriculture,China) |
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| Abstract: | An experiment was conducted to screen the germplasm materials with high winter hardiness by measuring the leaf electronic conductivity of 30 germplasm materials of Elymus sibiricus seedlings growing at 28 ℃ and 5 ℃ for 12 h in the nursery plate.The results of this study showed 30 germplasm materials of E.sibiricus were divided into very high,high,medium winter hardiness.25 Germplasm materials of E.sibiricus were very high winter hardiness and took up 83.33% of the all materials,including ES002,ES004,ES006,ES009,ES010,ES012,ES014,ES015,ES016,ES017,ES018,ES019,ES025,ES026,ES028,ES029,ES030,ES031,ES032,ES034,ES036,ES037,ES038,ES039,ES040.Germplasm materials of E.sibiricus with high winter hardiness were ES001,ES005,ES007,and occupying up 10.00%.ES013 and ES033 showed the medium winter hardiness and were 6.67% of the all germplasms.The winter hardiness of 30 germplasm materials of E.sibiricus was significantly different(P<0.001) and classified into 17 various combination,and these suggested that E.sibiricus showed the widely ecological plasticity,and developed different winter hardiness due to long-time adaptation for the original habitat. |
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| Keywords: | Elymus sibiricus winter hardiness low temperature stress damage rate |
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