5Crook M J, Ennos A R. Mechanical differences between free- standing and supported supported wheat plants, Triticum aesti- vuznl[J].Annals of Botany, 1996,77(3) ;197 202.
6Kellbert A J, Spaner D, Briggs K G, et al. The association of culm anatomy with susceptibility in modern spring wheat genotypes[J].Euphytica, 2004,136 : 211- 221.
7范濂,胡廷积.小麦试验方法[M].焦作:河南科学技术出版社,1984:175-177.
8Wiersma D W, Oplinger E S, Guy S O. Environment and euhivar effects on winter wheat response to ethephon plant growth regulator[J]. Agronomy Journal, 1986,78:761- 764.
9Zahour A, Rasmusson D C, Gallagher L W. Effect of semid warf stature, head number and kernel number on grain yield in harley in morocco[J]. Crop Seience,1987,27:161- 165.