7He C G,Zhang X G. Field evaluation of lucerne (Medi- cago sativa L. ) for resistance to aphids in northern China[J]. Australian Journal of Agricultural Research, 2006,57:471-475.
8中国科学院动物研究所.中国农业昆虫[M].北京:中国农业出版社,1986:276.
9Gorz H J, Manglitz G R, Haskins F A. Selection for yellow clover aphid and pea aphid resistance in red clover[J]. Crop Science, 1979 : 256-260.
10Irwin J A, Lloyd K L, Lowe K F. I.ucerne biology and genetic improvement-an analysis of past activities and future goals in Australia [J]. Australian Journal of Agricultural Research, 200l, 52: 699-712.