共 8 条
[2]
CHIKO A W, 1973, Canadian Plant Disease Survey, V53, P107
[3]
DICKSON JG, 1956, DISEASES FIELD CROPS
[4]
McDONALD W. C, 1964, CAN PLANT DIS SURV, V44, P118
[5]
McDonald W.C., 1970, CAN PLANT DIS SURV, V50, P113
[6]
MCDONALD WC, 1967, PHYTOPATHOLOGY, V57, P747
[7]
SMEDEGARDPETERS.V, 1971, VET AGR U YB 1971, P124
[8]
1973, BARLEY VARIETY SURVE