共 12 条
[1]
Broadfoot WC, 1931, PHYTOPATHOLOGY, V21, P347
[2]
Caldwell RM, 1934, J AGRIC RES, V48, P1049
[3]
GREANEY F. J., 1941, SCI AGRIC, V22, P40
[4]
HEADDEN WP, 1916, COLORADO AGR EXPT 3, V219
[5]
Johnston CO, 1934, J AGRIC RES, V49, P0955
[6]
Mains EB, 1930, J AGRIC RES, V40, P0417
[7]
MANGELS CE, 1925, CEREAL CHEM, V2, P107
[8]
Murphy HC, 1936, PHYTOPATHOLOGY, V26, P220
[9]
PETURSON B., 1939, CANADIAN JOUR RES SECT C BOT SCI, V17, P380