Analyses of the Subordinate Function and the Principal Components of Hosta Drought Resistance
In order to use the germplasm resources of Hosta in our country and provide landscaping with the varieties of Hosta drought resistance,the drought resistances of five hosta germplasm resources were evaluated by subordinate function analysis and principal component analysis.The results showed that the 7 correlation indexes of drought resistance could be classified into 3 components:extent of injury factor,drought-resistant ability factor and water status factor.The drought resistances of the five Hosta germplasm resources were gauged as follows:H.grandtiara＞H.plantaginea＞H.lancefolia＞H.ventricosa ＞H.undulata.Clustering analyses indicated that H.grandtiara and H.plantaginea had strong drought resistance.Therefore,both varieties could be used for reference in the production practice of water shortage areas in the future to solve the contradiction between garden construction and limited water resources.
HostaDrought resistanceSubordinate function analysisPrincipal components analysis
NETL
NSTL
万方数据
维普
