Observation on Leaf Anatomical Structure and Evaluation of Drought Resistance of Grape Rootstocks in Xinjiang
In order to evaluate the drought resistance of grape rootstock leaves in Xinjiang,25 different rootstocks such as'Beta','SO4','5BB'were used in this study.The leaf anatomical structure was measured by lmage J software,and the drought resistance of rootstock was analyzed by cluster analysis by SPSS 25.0 software.Finally,the main indexes which can accurately evaluate the drought-resistance of the rootstock were determined by principal com-ponent analysis.The results showed that the thickness of leaf,palisade tissue,spongy tissue,upper and lower epidermis and cuticle of different rootstocks had significant or extremely significant differences.Through cluster analysis and principal component analysis,the rootstock varieties with stronger drought resistance were selected.Through comparative analysis and comprehensive evaluation,the drought resistance of rootstock varieties were obtained:'SO4','Vitis riparia No.4','Dogridge','Doult','Liberty'.Medium drought-resistant varieties:'Shanghe4','Vitis ripariaNo.2','Vitis riparia No.3','Vitis riparia No.5','Vitis riparia No.7','Vitis riparia No.9','Vitis riparia No.10','Gloirede','188-08','Beta','Stdoarge','101-14MG'.The varieties with weak drought resistance were:'11 0R','5C','5BB','11039','Shanhe3','Harmony','Shanhe1','Ganzin'.This study provided a scientific basis for the selection of drought-resistant rootstock in Xinjiang,and also laid a theoretical basis for the identification of drought resistance of other varieties.Comprehensive evaluation should be carried out in combination with field phenotype and physicochemical indexes of drought resistance in the later stage.
NETL
NSTL
万方数据
