胡卢巴种子萌发对干旱胁迫的响应  

Response of seed germination of Trigonella foenum-graecum L.to drought stress

作　　者：鲍海娟 宋永莲 杜明川 王伟[2,3] 刘晶 BAO Haijuan;SONG Yonglian;DU Mingchuan;WANG Wei;LIU Jing(College of Ecological Environment and Resources Qinghai Minzu University/Qinghai Provincial Key Laboratory of Highvalue Utilization of Characteristic Economic Plants/Kairui Graduate Workstation of Medicinal Plant Resources of Qinghai Minzu University,Qinghai,Xining 810007,China;Academy of Animal Science and Veterinary,Qinghai University,Qinghai,Xining 810000,China;Northwest Key Laboratory of Cultivated Land Conservation and Marginal Land Improvement/Ministry of Agriculture and Rural Affairs,Qinghai Bensheng Grass Industry Co.,Ltd.,Qinghai,Delingha 817000,China)

机构地区：[1]青海民族大学生态环境与资源学院/青海省特色经济植物高值化利用重点实验室/青海民族大学药用植物资源学凯瑞研究生工作站,青海西宁810007 [2]青海大学畜牧兽医科学院,青海西宁810000 [3]青海奔盛草业有限公司/农业农村部西北耕地保育及边际土地改良重点实验室,青海德令哈817000

出　　处：《草学》2024年第3期34-41,共8页Journal of Grassland and Forage Science

基　　金：青海省重大科技专项(2023-NK-A3);青海民族大学大学生创新创业训练计划项目(项目编号:DCXM-2023-75)共同资助。

摘　　要：本研究以不同种质胡卢巴种子为研究对象,探究不同浓度干旱胁迫对加拿大胡卢巴、云南胡卢巴、甘肃胡卢巴和青海胡卢巴萌发指标的影响。结果表明:随PEG浓度增加胡卢巴种子发芽势、胚根长、胚芽长、活力指数呈下降趋势;同种质胡卢巴萌发指标对不同浓度PEG胁迫响应度不同;种质×PEG干旱胁迫综合评价结果中加拿大胡卢巴在PEG浓度10%时抗旱性最好,加拿大胡卢巴在PEG浓度为25%时抗旱性最差。结论:PEG浓度升高对胡卢巴种子萌发有抑制作用;PEG浓度10%时,胡卢巴种子萌发指标最好;PEG浓度25%时,青海胡卢巴表现最佳。In this study,the seeds of different germplasms of fenugreek were used as the research object to explore the effects of different concentrations of drought stress on the germination indexes of Canadian fenugreek,Yunnan fenugreek,Gansu fenugreek and Qinghai fenugreek.The results showed that:With the increase of PEG concentration,the germination potential,radicle length,germ length and vigor index of Trigonella foenum-graecum L.seeds decreased.The germination indexes of the same germplasm were different in response to different concentrations of PEG stress.In the comprehensive evaluation results of germplasm×PEG drought stress,the drought resistance of Canadian fenugreek was the best when PEG was 10%,and the drought resistance of Canadian fenugreek was the worst when PEG was 25%.Conclusion:The increase of PEG concentration has an inhibitory effect on the seed germination of Trigonella foenum-graecum L.The germination index of 10% PEG concentration was the best,and the germination index of 25% PEG concentration was the best.

关 键 词：干旱胁迫 胡卢巴 PEG浓度 种子萌发 

分 类 号：S542.034[农业科学—作物学]