| 盐胁迫对扁穗雀麦种子萌发特性的影响 |
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| 引用本文： | 田宏,刘洋,张鹤山,蔡化,张年,陈明新.盐胁迫对扁穗雀麦种子萌发特性的影响[J].湖北农业科学,2009,48(7). |
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| 作者姓名： | 田宏 刘洋 张鹤山 蔡化 张年 陈明新 |
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| 作者单位： | 湖北省农业科学院畜牧兽医研究所/湖北省动物胚胎工程及分子育种重点实验室,武汉,430209 |
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| 基金项目： | 农业部牧草种质资源保护项目，湖北省农业科技创新中心资助项目 |
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| 摘 要： | 研究了NaCl和Na2CO3对扁穗雀麦新品系种子萌发特性的影响,结果表明,0.2%～0.4%的NaCl和Na2CO3处理与对照相比,发芽启动时间相同,均在第5天,随着浓度的升高,发芽开始的时间推后.在不同浓度NaCl和Na2CO3处理下,扁穗雀麦种子的发芽率、发芽指数和活力指数随着盐浓度的增加而呈下降的趋势,同浓度条件下,扁穗雀麦种子对NaCl的忍耐能力大于对Na2CO3的.不同浓度NaCl和Na2CO3处理下,扁穗雀麦种子的胚芽和胚根受到的抑制程度不同,但都是胚根受到的抑制作用大于胚芽;在同浓度条件下,NaCl处理组对胚芽和胚根的抑制程度大于Na2CO3处理组.
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| 关 键 词： | 扁穗雀麦 盐胁迫 萌发特性 |
The Effect on the Germination Characteristics of Bromus cartharticus under Sodium Stress |
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| TIAN Hong,LIU Yang,ZHANG He-shan,CAI Hua,ZHANG Nian,CHEN Ming-xin.The Effect on the Germination Characteristics of Bromus cartharticus under Sodium Stress[J].Hubei Agricultural Sciences,2009,48(7). |
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| Authors: | TIAN Hong LIU Yang ZHANG He-shan CAI Hua ZHANG Nian CHEN Ming-xin |
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| Institution: | Institute of Husbandry and Veterinary Medicine;Hubei Academy of Agricultural Sciences;Hubei Provincial Key Laboratory for Animal Embryo Engineering and Molecular Breeding;Wuhan 430209;China |
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| Abstract: | The effect on the germination characteristics of Bromus cartharticus under NaCl and Na2CO3 stress were studied in this experiment.The result showed that the germination started at the 5th day under the lower conecntratons treatments and the time was retarded with the sodium concentration increasing.The change of gemination rate,germination index and vitali-ty index of B.cartharticus showed the declining trend with the sodium concentration increasing under the different NaCl and Na2CO3 concentration treatmen... |
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| Keywords: | Bromus cartharticus sodium stress germination characteristics |
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