共 33 条
[1]
*ASS OFF AGR CHEM, 1940, OFF TENT METH AN
[3]
BOYNTON DAMON, 1941, PROC AMER SOC HORT SCI, V38, P17
[4]
DAVIDSON O. W., 1937, PROC AMER SOC HORT SCI, V35, P339
[5]
FARDEN CA, UNPUB METHOD OBTAINI
[6]
HAYWARD HE, 1941, USDA TECH B, V786
[7]
HAYWARD HE, IN PRESS AM J BOT
[8]
HOLMAN RICHARD M., 1930, UNIV CALIFORNIA PUBL BOT, V16, P139
[9]
KNOTT JE, 1939, CORNELL U AGR EXP ST, V218
[10]
KRAUS EJ, 1918, ORGEON AGR EXP STA B, V149