| 天蓝苜蓿野生种质的耐盐性研究 |
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| 引用本文： | 冯毓琴,曹致中,贾蕴琪,徐智明,周玉雷.天蓝苜蓿野生种质的耐盐性研究[J].草业科学,2007,24(5):27-33. |
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| 作者姓名： | 冯毓琴 曹致中 贾蕴琪 徐智明 周玉雷 |
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| 作者单位： | 甘肃农业大学草业学院,甘肃,兰州,730070;甘肃省农业科学院农产品贮藏加工研究所,甘肃,兰州,730070;甘肃农业大学草业学院,甘肃,兰州,730070 |
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| 基金项目： | 国家科技部“十五”奶业重大专项“优质饲草高效生产关键技术及产业化示范”(2002BA518A03-01) |
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| 摘 要： | 以主要采集于甘肃、陝西、四川等不同生态条件下的28份野生天蓝苜蓿Medicago lupulina生态型和2种栽培一年生蒺藜苜蓿M.trunculata、蜗牛苜蓿M.scuttelata为材料,用0.3%、0.5%、0.7%和0.9%NaCl溶液进行盐胁迫处理,观察记录处理5、10、15 d的盐害程度;以0.5%作为抗盐指标测定的处理浓度,分别测定胁迫前和胁迫1、5、9 d的超氧化物歧化酶活性(SOD)、丙二醛(MDA)和脯氨酸(Pro)的含量,运用隶属函数法筛选评价它们的抗盐性。结果表明:青海循化、贵州花溪、四川简阳、四川剑阁4个生态型和蒺藜苜蓿耐盐性最好,居参试类型的前五位;蜗牛苜蓿居16位,其耐盐性属参试30份材料的中间类型;天蓝苜蓿各生态型的耐盐性存在较大的差异,临夏甘南和天水生态型是甘肃省内耐盐性较强的两大类型。
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| 关 键 词： | 天蓝苜蓿 野生 生态型 耐盐性 筛选 |
| 文章编号： | 1001-0629（2007）05-0027-07 |
| 收稿时间： | 01 30 2007 12:00AM |
| 修稿时间： | 2007-01-30 |
Study on salt tolerance of wild black medic germplasm |
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| FENG Yu-qin,CAO Zhi-zhong,JIA Yun-qi,XU Zhi-ming,ZHOU Yu-lei.Study on salt tolerance of wild black medic germplasm[J].Pratacultural Science,2007,24(5):27-33. |
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| Authors: | FENG Yu-qin CAO Zhi-zhong JIA Yun-qi XU Zhi-ming ZHOU Yu-lei |
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| Institution: | 1.College of Grassland Science;Gansu Agricultural University;Lanzhou 730070;China;2.Agricultural Product Storage and Processing Institute;Gansu Academy of Agricultural Science;China |
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| Abstract: | Salt tolerance of 28 ecotypes of black medics,2 accessions of Medicago scuttelat and M.trunculata was tested at seedling stage by 0.3%,0.5%,0.7% and 0.9% NaCl salinity.The damage was measured at 5,10 and 15 d after the treatment.The content of SOD,MDA,Proline before and after 1,5 and 9 d of 0.5% salinity stress was measured,subjection function was used to assess their salt tolerance.The results showed that Qinghai Xunhua,barrel medic,Guizhou Huaxi,Sichuan Jianyang and Sichuan Jiange were the most salt toler... |
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| Keywords: | Black medics wild ecotype salt tolerance screening |
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