共 12 条
[1]
GROSZMANN A, 1947, THESIS IOWA STATE CO
[2]
HOLBERT J. R., 1930, PHYTOPATHOLOGY, V20, P117
[3]
HOLBERT J. R., 1929, PHYTOPATHOLOGY, V19, P105
[4]
HOLBERT JR, 1933, USDA285 CIR
[5]
KIESSELBACH TA, 1920, NEBR AGR EXP STA RES, V16
[6]
MAGEE SJ, 1947, THESIS IOWA STATE CO
[7]
ROBINSON JL, 1934, IOWA AGR EXP STA RES, V176
[8]
ROBINSON JL, 1946, ANN REPORT IOWA SEED
[9]
ROSSMAN EC, 1948, THESIS IOWA STATE CO
[10]
ROSSMAN EC, 1949, PLANT PHYSIOL, V24, P627