TWINSPAN Classification and Selection of Alfalfa Cultivars

doi:10.7668/hbnxb.2008.02.034

Abstract

Abstract: The ecophysiological characteristics of twenty-four varieties of the alfalfa in Huhhot suburb experimental station of Grassland Research Institute of Chinese Agricultural Sciences are studied by TWINSPAN i.e.,the quantitative classification Two-Way Indicators Species Analysis in Cornell ecological program(CEP).The results show that twenty-four varieties of the alfalfa have been classified into eight categories by TWINSPAN.Moreover,after analyzing the arid and semiarid climate of the studied area,four varieties of excellent alfalfa are selected,which with high output,high water use efficiency(WUE),and high light use efficiency(LUE).Those are Apollo Supreme,Conqueror,WL232,Zhongmu No.1.

Key words: Alfalfa, TWINSPAN(Two- Way Indicators Species Anlysis, Ecophysiological characteristics, Selection of cultivats

CLC Number:

S521.7023

MA Chun, SUN Qi-zhong, NIU Jian-ming, LI Hong-yuan, DING Yong, ZHANG Xiao-chun. TWINSPAN Classification and Selection of Alfalfa Cultivars[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 151-154. doi: 10.7668/hbnxb.2008.02.034.

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