CRITICAL ANALYSES OF PRINCIPLES OF SEED POTATO CERTIFICATION

[31] ORTON WA, 1914, 1ST P ANN M NATL POT, P37

[32] ORTON WA, 1914, PHYTOPATHOLOGY, V4, P39

[33] EXTENT AND SURVIVAL OF CONTAMINATION OF POTATO STOCKS IN SCOTLAND BY ERWINIA-CAROTOVORA VAR CAROTOVORA AND E-CAROTOVORA VAR ATROSEPTICA [J]. ANNALS OF APPLIED BIOLOGY, 1972, 71 (02) : 111 - +

[34] QUAK F, 1972, VIRUSES POTATOES SEE, P158

[35] RACICOT H. N., 1938, AMER POTATO JOUR, V15, P312, DOI 10.1007/BF02879160

[36] Rieman GH., 1956, POTATO HDB, V1, P6

[37] UNDERGROUND SPREAD OF POTATO VIRUS-X [J]. NATURE, 1946, 158 (4019) : 663 - 663

[38] ROZENDAAL A, 1955, C POTATO VIRUS DIS, V2, P120

[39] Sagan C., 1973, COSMIC CONNECTION EX

[40] SAMPSON PJ, 1968, PHYTOPATHOLOGY, V58, P489

[31] ORTON WA, 1914, 1ST P ANN M NATL POT, P37

[32] ORTON WA, 1914, PHYTOPATHOLOGY, V4, P39

[33] EXTENT AND SURVIVAL OF CONTAMINATION OF POTATO STOCKS IN SCOTLAND BY ERWINIA-CAROTOVORA VAR CAROTOVORA AND E-CAROTOVORA VAR ATROSEPTICA [J]. ANNALS OF APPLIED BIOLOGY, 1972, 71 (02) : 111 - +

[34] QUAK F, 1972, VIRUSES POTATOES SEE, P158

[35] RACICOT H. N., 1938, AMER POTATO JOUR, V15, P312, DOI 10.1007/BF02879160

[36] Rieman GH., 1956, POTATO HDB, V1, P6

[37] UNDERGROUND SPREAD OF POTATO VIRUS-X [J]. NATURE, 1946, 158 (4019) : 663 - 663

[38] ROZENDAAL A, 1955, C POTATO VIRUS DIS, V2, P120

[39] Sagan C., 1973, COSMIC CONNECTION EX

[40] SAMPSON PJ, 1968, PHYTOPATHOLOGY, V58, P489