共 8 条
[1]
Airy J.M., 1955, CORN CORN IMPROVEMEN, P379
[2]
Borgeson Carl, 1943, JOUR AMER SOC AGRON, V35, P919
[3]
CHINWUBA P. M., 1961, CROP SCI, V1, P279, DOI 10.2135/cropsci1961.0011183X000100040015x
[5]
DUNGAN G. H., 1939, JOUR AMER SOC AGRON, V31, P872
[6]
GROGAN CLARENCE O., 1956, AGRON JOUR, V48, P247
[7]
KIESSELBACH TA, 1945, J AM SOC AGRON, V37, P806
[8]
SCHWANKE RK, 1965, THESIS IOWA STATE U