VARIATION IN PHYTOPATHOGENIC VIRUSES

[121] SUMMERS EM, 1939, 6TH P INT SOC SUG CA, P564

[122] AN ELECTRON MICROSCOPE STUDY OF 2 STRAINS OF POTATO-X VIRUS [J]. AMERICAN JOURNAL OF BOTANY, 1946, 33 (09) : 740 - 742

[123] THUNG TH, 1931, 6DE HAND NED IND NAT, P450

[124] THUNG TH, 1937, TIJDSCHR PLANTENZIEK, V43, P11

[125] THUNG TH, 1932, PROEFSTATION VORSTEN, P30

[126] THUNG TH, 1939, PROEFSTATION VORSTEN, V87, P23

[127] TIMS E. C., 1935, Phytopathology, V25, P36

[128] VALLEAU W. D., 1935, Phytopathology, V25, pp

[129] Valleau WD, 1943, PHYTOPATHOLOGY, V33, P210

[130] Valleau WD, 1941, J AGRIC RES, V62, P0241

[121] SUMMERS EM, 1939, 6TH P INT SOC SUG CA, P564

[122] AN ELECTRON MICROSCOPE STUDY OF 2 STRAINS OF POTATO-X VIRUS [J]. AMERICAN JOURNAL OF BOTANY, 1946, 33 (09) : 740 - 742

[123] THUNG TH, 1931, 6DE HAND NED IND NAT, P450

[124] THUNG TH, 1937, TIJDSCHR PLANTENZIEK, V43, P11

[125] THUNG TH, 1932, PROEFSTATION VORSTEN, P30

[126] THUNG TH, 1939, PROEFSTATION VORSTEN, V87, P23

[127] TIMS E. C., 1935, Phytopathology, V25, P36

[128] VALLEAU W. D., 1935, Phytopathology, V25, pp

[129] Valleau WD, 1943, PHYTOPATHOLOGY, V33, P210

[130] Valleau WD, 1941, J AGRIC RES, V62, P0241