Evaluation of Cold Resistance of Five Wild Groundcover Plants(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Author(s):: GU Wen-yi; LIU Xiao-li; WEI Hai-bin; Qinghai Forestry Research Institute,Xining,Qinghai 810016

Abstract:: With Hedysarum multijugum,Potentilla fruticosa,Potentilla glabra,Sabina vulgaris and Caragana Korshinskii five kinds of wild groundcover plants as materials,after cryogenic treatment the electrical conductivity were measured,and Logistic equation was used to fit s-shaped curve,the lethal temperature of five farming were calulated,lethal temperature and the relationship between the plant cold hardiness were studied,under different low temperature controls at the same time,the change trend of free proline content and soluble sugar content and the relationship between the plant cold hardiness were researched.The results showed that the electrical conductivity of five kinds of wild groundcover plants,free proline content and soluble sugar content,all appear to increase with the extension of low temperature stress time after reducing trend,its cold resistance by began to evaluation for: Sabina vulgaris＞Potentilla fruticosa＞Hedysarum multijugum＞Potentilla glabra＞Caragana Korshinskii.

[1]Lyons J M.Chilling injury in plants[J].Plant Physiology,1973,24:445-466.

[2]贺普超,牛立新.电导法测定果树抗寒性中确定适当计量单位的探讨[J].中国果树,1986,9(3):45-47.

[3]吴经柔.果树抗寒性的鉴定-细胞原生质透性测定-电导法[J].中国果树,1980(2):44-47.

[4]唐士勇.Logistic方程在果树半致死温度测定中的应用[J].北方果树,1993(4):23-24.

[5]赵世杰.植物生理学试验指导[M].北京:中国农业科技出版社,1998.

Last Update: 2014-12-12