Screening of Long Cowpea[Vigna unguiculata(L.)Walp.ssp.sesquipedialis]Varieties in Autumn in Hunan and Comparison of Various Comprehensive Evaluation Methods  

作　　者：Lin HUANG Zhibing CHEN Wan JIANG Xincheng SUN Zhongwu ZHANG Jie KANG Lianyong YANG Weiping CHEN Yuanqun PENG 

机构地区：[1]Changde Agriculture and Forestry Science Academy,Changde 415000,China [2]Changde Branch of Hunan Academy of Agricultural Sciences,Changde 415000,China [3]Changde City Agricultural Technology Extension Center Station,Changde 415000,China

出　　处：《Plant Diseases and Pests》2024年第5期33-39,共7页植物病虫害研究（英文）

基　　金：Supported by China Agricultural Industry Research System(CARS-23-G31);Technology Innovation Guidance Project of Changde City(CDKJJ20220265,CDKJJ2023YF33).

摘　　要：[Objectives]The paper was to screen new varieties of long cowpea that are suitable for autumn cultivation in Hunan,as well as to develop a comprehensive evaluation method to assess their adaptability and performance.[Methods]A total of 48 long cowpea varieties were introduced,and a range of comprehensive evaluation methods was employed to assess these varieties through the collection and analysis of field data.[Results]The square Euclidean distance of 14 allowed for the classification of all varieties into eight distinct groups.Groups II,III,and V belong to the autumn dominant group within this region,while groups I and VIII belong to the intermediate group.Additionally,groups IV,VI,and VII belong to the autumn inferior group in this area.Through a comparative analysis of various comprehensive evaluation methods,it was determined that the common factor comprehensive evaluation,grey correlation method,and fuzzy evaluation method were appropriate for application in the selection of long cowpea varieties.Furthermore,the evaluation outcomes were largely consistent with the cluster pedigree diagram.[Conclusions]Through comprehensive index method,ten varieties demonstrating superior performance in autumn cultivation have been identified,including C20,C42,C29,C40,C3,C14,C18,C25,C15,and C47.The selected varieties exhibit several advantageous traits,such as a reduced growth duration,a lower position of initial flower nodes,a decreased number of branches,predominantly green young pods,elongated pod strips,thicker pod structures,an increased number of pods per plant,and higher overall yields.These characteristics render them particularly valuable for extensive cultivation.

关 键 词：Long cowpea Variety SCREENING Cluster analysis Comprehensive evaluation method 

分 类 号：S436.43[农业科学—农业昆虫与害虫防治]