共 13 条
- [1] Bonnett OT, 1937, J AGRIC RES, V54, P0927
- [2] Bonnett OT, 1935, J AGRIC RES, V51, P0451
- [3] Bonnett OT, 1936, J AGRIC RES, V53, P0445
- [4] BUGNON P, 1924, MEM SOC LINN NORMAND, V26, P21
- [5] Evans MW, 1940, J AGRIC RES, V61, P0481
- [6] KAWAMURA S, 1926, JAP J BOT, V3, P335
- [7] KLIEM F., 1937, Beitr. Biol. Pfl., V24, P281
- [8] NOGUCHI Y, 1929, TOKYO IMP U COL AGR, V10, P247
- [9] PORTERFLELD WM, 1930, PELING SOC NAT HIST, V4, P7