主成分分析及隶属函数法对菊芋苗期耐盐性评价  

Salt Tolerance of Helianthus tuberosus L. Seedlings Evaluated by Principal Component Analysis and Membership Function Method

作　　者：张国新[1] 王秀萍[1] 姚玉涛[1] 薛志忠[1] ZHANG Guo-xin;WANG Xiu-ping;YAO Yu-tao(Coastal Agriculture Institute,Hebei Academy of Agriculture and Forestry Sciences,Hebei Technical Research Center of Saline-alkali Soil Greening Project,Tangshan Key Laboratory of Plant Salt Tolerance Research,Tangshan,Hebei 063200)

机构地区：[1]河北省农林科学院滨海农业研究所,河北省盐碱地绿化工程技术研究中心,唐山市植物耐盐研究重点实验室,河北唐山063200

出　　处：《安徽农业科学》2018年第30期77-79,共3页Journal of Anhui Agricultural Sciences

基　　金：河北省科技项目(16226304D-5)

摘　　要：[目的]综合评价苗期菊芋耐盐性,筛选耐盐品种。[方法]利用不同盐分梯度的盐碱原土,对6个菊芋品种(系)苗期耐盐性进行分析,通过主成分及指标相关分析,运用隶属函数法进行耐盐性评价。[结果]筛选出叶面积、株高、地上鲜重、地下鲜重、地上干重、丙二醛、净光合速率、气孔导度8个指标作为综合评价指标,菊芋品种(系) B1、N1综合得分为0.812、0.625。[结论]6个品种(系)中,B1、N1苗期耐盐性较强。[Objective] To evaluate the salt tolerance of Helianthus tuberosus in seedling stage and to screen salt-tolerant varieties. [Method] The salt tolerance of 6 H. tuberosus varieties （lines） was analyzed by using salt-alkali soil with different salt gradients. The salt tolerance was evaluated by means of principal component and index correlation analysis, and the method of membership function was used to evaluate the salt tolerance of 6 H. tuberosus varieties （lines）. [Result] Eight indexes such as leaf area, plant height, aboveground fresh weight, underground fresh weight, aboveground dry weight, malondialdehyde （MDA）, net photosynthetic rate and stomatal conductance were selected as comprehensive evaluation indexes.The synthesis scores of B1 and N1 were 0.812,0.625,respectively. [Conclusion] Among the 6 varieties （lines）, B1 and N1 have strong salt tolerance in seedling stage.

关 键 词：菊芋 苗期耐盐性 主成分分析 隶属函数法 评价 

分 类 号：S632.9[农业科学—蔬菜学]