安徽农业科学2018，Vol.46Issue(7)：88-91,4.
3种禾本科牧草萌发期和苗期的抗旱性研究
Study on the Drought Resistance of Three Kinds of Gramineae Forage in the Germination and Seedling Stages
摘要
Abstract
[Objective]To study the drought resistance of three kinds of Gramineae forage in the germination and seedling stages.[Method] Taking three kinds of Gramineae forage(Brachiaria decumbens Stapf,Lolium perenne and Cynodon dactylon as test materials,PEG6000 was used to simulate drought stress.The germination rate, germination potential, leaf water content, electrical conductivity, malondialdehyde(MDA) content and other physiological indexes under different PEG stress were determined.And the drought resistance of three kinds of Gramineae for-age was studied.[Result]Under drought stress, the germination rate and germination potential of Cynodon dactylon were significantly higher than that of other varieties,and its membership function value was the highest.Compared with CK,PEG stress had significant effects on the ger-mination rate,germination potential, leaf water content, electrical conductivity, MDA content of three kinds of Gramineae forage(P<0.05). [Conclusion]Among three kinds of Gramineae forage,Cynodon dactylon had the strongest drought resistance.Therefore,Cynodon dactylon can be used as the first choice of drought resistant varieties of turfgrass in the Kunming area.关键词
禾本科牧草/PEG胁迫/抗旱性/隶属函数值Key words
Gramineae forage/PEG stress/Drought resistance/Membership function value分类
农业科技引用本文复制引用
熊阳阳,韩博..3种禾本科牧草萌发期和苗期的抗旱性研究[J].安徽农业科学,2018,46(7):88-91,4.基金项目
云南省教育厅科学研究基金项目(2016ZZX104). （2016ZZX104）
