Evaluation and screening of different dwarf cowpea(Vigna sinensis Endb)varieties in autumn in Hunan province
In order to explore the differences among different common dwarf cowpea(Vigna sinensis Endb)varieties,and provide data reference for seed selection,breeding and variety replacement of cowpea,10 common varieties of dwarf cow-pea were studied through the collection of variety traits data,significance difference analysis,correlation analysis,princi-pal component analysis and cluster analysis to comprehensively evaluate and screen different varieties of dwarf cowpea.The results showed that in the autumn cultivation of dwarf cowpea in Hunan province,the growth period was short,and the whole period from sowing to harvest was about 51 days.The principal component analysis indicated that the 15 agro-nomic traits indexes were reduced to 5 comprehensive factors,and the cumulative variance contribution rate was 88.475％.According to the cluster analysis,they were divided into 5 categories,Linfeng Changdibai,Yukang Wujiadou,Zhaibubai,Meiguo Wujiadou and other varieties,respectively.According to the comprehensive evaluation score,three varieties(Linfeng Changdiba,Yukang Wujiadou and Meiguo Wujiadou)with good performance were screened out and suitable for autumn cultivation in Hunan province.The results provided some certain guiding and reference value for dwarf cowpea seed selection and breeding in Hunan province and the development of dwarf cowpea industry in China.
万方数据
维普
