共 6 条
- [1] HARRISON M. D., 1965, American Potato Journal, V42, P319, DOI 10.1007/BF02869697
- [2] HORSFALL JG, 1945, PHYTOPATHOLOGY, V35, P655
- [3] LUTMAN BF, 1911, VT AGR EXP STA B, V159, P225
- [4] OHMS RE, 1961, 346 ID AGR EXT SERV
- [5] POTTER HS, 1960, 573 MICH AGR EXT FAC
- [6] RANDS RD, 1917, 42 WISC AGR EXP STA