摘要
通过设置不同PEG-6000浓度模拟干旱胁迫的方法,对不同紫云英品种(系)的萌发特性以及抗旱性进行了研究,结果表明:(1)低浓度PEG-6000对紫云英种子的萌发具有促进作用;(2)紫云英种子的发芽率、萌发胁迫指数、萌发抗旱指数、活力指数随着胁迫浓度的增加呈下降趋势;(3)低胁迫浓度促进紫云英胚根的伸长,高胁迫浓度则抑制其伸长;(4)运用模糊数学隶属函数法对紫云英种质材料进行综合评价,发现其抗旱性强弱顺序为升钟>848711>宁波大桥>信阳>弋江籽。
The experiment was conducted to estimate the seed germination characteristics and drought resistance of different Astragalus sinicus L.species by simulating drought stress treatment with different polyethylene glycol(PEG)-6000 solution.The results show that low concentrations of PEG-6000 improved seed germination.Germination rate,germination stress index,germination drought resistance index,vigor index of all species decreased with increase of PEG-6000 concentration.Low concentrations of PEG-6000 improved radical length,while the high concentrations inhibited.The method of fuzzy mathematical membership function was used to evaluate Astragalus sinicus L.species.The order of drought-resistance of different Astragalus sinicus L.species tested was:Sheng zhong>848711>Ning bo da qiang>Xin yang>Yi jiang zi.
作者
刘彩玲
何春梅
王飞
王利民
李清华
黄毅斌
LIU Cai-ling;HE Chun-mei;WANG Fei;WANG Li-min;LI Qing-hua;HUANG Yi-bin(Soil and Fertilizer Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350013,China)
出处
《江西农业学报》
CAS
2019年第9期68-72,共5页
Acta Agriculturae Jiangxi
基金
福建省农业科学院青年人才创新基金(YC2018-4)
福建省农业科学院对外合作项目(DEC201821215)
福建省农业科学院生态农业创新团队(STIT2017-1-9)
关键词
紫云英
萌发期
PEG胁迫
抗旱性
Astragalus sinicus L.
Germination stage
PEG stress
Drought resistance
作者简介
刘彩玲(1991─),女,福建惠安人,研究实习员,硕士,主要从事水田绿肥研究;通信作者:黄毅斌。
