Comparison of cold resistance among 4 grapevine cultivars
[Objective]To study the differences of cold resistance among grape cultivars and select wine varieties with good cold resistance.[Methods]The shoots of three introduced wine grape cultivars ‘Beibinghong’,‘ Zuoyouhong’,‘ Double Red’ and local major cultivar ‘ Cabernet Sauvignon’ were used as experiment materials.The relative conductivity,soluble sugar,soluble protein,proline,malondialdehyde,superoxide dismutase,peroxidase and catalase activity of different cultivars were measured after low temperature treatment.The semi lethal temperatures of the tested cultivars were calculated by the conductance method with application of Logistic equation,and the cold resistance of different cultivars was compared with variance and principal component analysis.[Results]The results showed that the relative conductivity and MDA content of 4 cultivars increased with the decrease of temperature,and the activity of SOD,content of soluble sugar and proline increased first and then decreased.CAT activity and soluble protein content kept increase,while POD activity decreased.[Conclusion]Through principal component analysis,the order of cold resistance of 4 cultivars was ‘Double Red’ ＞ ‘Zuoyouhong’ ＞ ‘Beibinghong’ ＞‘Cabernet Sauvignon’,which could provide reference for introduction and cultivation management of wine grape.
Wine grapevineCold resistancePrincipal component analysisSemilethal temperature
国家科技期刊平台
NSTL
万方数据
维普
