共 14 条
[3]
BIDDULPH O, 1953, USE ISOTOPES PLANT A, P48
[5]
Hoagland D.R., 1938, 347 U CAL AGR EXP ST
[6]
LANGSTON RUBLE, 1956, PROC AMER SOC HORT SCI, V68, P370
[7]
LANGSTON RUBLE, 1956, PROC AMER SOC HORT SCI, V68, P366
[8]
MASON TG, 1936, ANN BOT, V45, P125
[9]
SAYRE JD, 1952, 723 OH AGR EXP STA R