共 18 条
[2]
BRUNSON AM, 1948, J AM SOC AGRON, V40, P180
[3]
Castle W E, 1921, Science, V54, P223, DOI 10.1126/science.54.1393.223
[4]
CURTIS JJ, 1946, CEREAL CHEM, V23, P88
[5]
Doty D. M., 1943, CEREAL CHEM, V20, P113
[6]
EARLE FR, 1946, CEREAL CHEM, V23, P504
[7]
FREY KJ, 1948, THESIS IOWA STATE CO
[8]
Hopkins C.G., 1899, ILL AGR EXP STN B, V55, P205
[9]
HOPKINS CG, 1903, ILL AGR EXP STA B, V87, P77
[10]
LINDSTROM E. W., 1927, IOWA STATE COLL JOUR SCI, V2, P9