共 3 条
[1]
BRADFORD FC, 1927, IN PRESS P AM SOC HO, V24
[2]
Structural weaknesses in interspecific grafts of Pyrus.
[J].
BOTANICAL GAZETTE,
1926, 82 (1-4)
:336-338
[3]
WAUGH FA, 1904, MASS HATCH AGR EXP S, V2