| PEG-6000对老芒麦种质材料萌发期抗旱性影响的研究 |
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| 引用本文： | 张晨妮,周青平,颜红波,刘文辉. PEG-6000对老芒麦种质材料萌发期抗旱性影响的研究[J]. 草业科学, 2010, 27(1): 119-123. DOI: 10.3969/j.issn.1001-0629.2010.01.023 |
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| 作者姓名： | 张晨妮 周青平 颜红波 刘文辉 |
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| 作者单位： | 青海大学,青海,西宁,810016;青海省畜牧兽医科学院草原所,青海,西宁,810016 |
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| 基金项目： | 农业部“青藏高原牧草种质资源保护利用”(70401);;农业部“牧草植物种质资源标准化整理、整合及共享”(DNA21007-14);;农业部行业专项“人工草地优质牧草生产技术研究与示范”(nyhyzx07-022) |
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| 摘 要： | 为了解老芒麦Elymus sibiricus种质材料萌发期的抗旱性,选取7份来自不同地区的老芒麦种质材料,在0、50、100、150、200、250和300g/L的聚乙二醇(PEG-6000)的胁迫下,对相对发芽率、发芽势、发芽指数、种子活力、胚根/胚芽值进行综合测定评价,结果表明:高抗旱性老芒麦分别来自新疆昌吉埠康白杨沟的E03、山西五台山的E04和甘肃碌曲玛艾的E07;抗旱性偏弱的材料是山西五台山的E01、新疆伊犁的E02、新疆乌鲁木齐甘沟的E05;山西沁源县的E06的抗旱性最差。老芒麦作为优良的牧草,研究其在PEG-6000胁迫下时的萌发特性的变化,对其优良品种的选育具有重要意义。
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| 关 键 词： | 抗旱性 老芒麦 发芽特性 PEG-6000 |
Effects of PEG on drought resistance of Elymus sibiricus germplasm at germination stage |
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| ZHANG Chen-ni,ZHOU Qing-ping,YAN Hong-bo,LIU Wen-hui. Effects of PEG on drought resistance of Elymus sibiricus germplasm at germination stage[J]. Pratacultural Science, 2010, 27(1): 119-123. DOI: 10.3969/j.issn.1001-0629.2010.01.023 |
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| Authors: | ZHANG Chen-ni ZHOU Qing-ping YAN Hong-bo LIU Wen-hui |
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| Affiliation: | 1.Qinghai University;Qinghai;Xining 810016;China;2.Grassland Institute;Qinghai Academy of Animal and Veterinary Sciences;China |
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| Abstract: | In order to understand the drought resistance of Elymus sibiricus at germination stage,seven germplasm materials were collected at various locations in China. The seeds were treated with PEG-6000 solution at the concentration of 50,100,150 g/L,and the relative germination rate,germination potential,germination index,seed vitality index and shoot/root lengths were evaluated comprehensively. The results showed that the high tolerant drought-resistance group included Jibukang which came from Changji,Xinjiang (... |
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| Keywords: | drought resistance Elymus sibiricus germination characters PEG-6000 |
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