OBSERVATION ON LETTUCE MOSAIC VIRUS IN LETTUCE SEED PRODUCTION FIELDS

[1] THE SPREAD OF LETTUCE MOSAIC IN THE FIELD [J]. ANNALS OF APPLIED BIOLOGY, 1951, 38 (03) : 689 - 706

[2] BROADBENT L, 1951, ANN APPL BIOL, V38, P706

[3] COSTA A. S., 1958, PLANT DIS REPORTER, V42, P583

[4] COSTA AS, 1958, PLANT DIS REPT, V42, P586

[5] COUCH HB, 1955, PHYTOPATHOLOGY, V45, P63

[6] GROGAN RG, 1952, PHYTOPATHOLOGY, V42, P573

[7] GROGAN RG, 1952, PHYTOPATHOLOGY, V42, P577

[8] HEIN ALICE, 1965, Phytopathologische Zeitschrift, V52, P29

[9] HEIN ALICE, 1964, Zeitschrift fur Pflanzenkrankheiten, V71, P267

[10] HEIN A, 1964, Z PFLANZKRANKH, V71, P270

[1] THE SPREAD OF LETTUCE MOSAIC IN THE FIELD [J]. ANNALS OF APPLIED BIOLOGY, 1951, 38 (03) : 689 - 706

[2] BROADBENT L, 1951, ANN APPL BIOL, V38, P706

[3] COSTA A. S., 1958, PLANT DIS REPORTER, V42, P583

[4] COSTA AS, 1958, PLANT DIS REPT, V42, P586

[5] COUCH HB, 1955, PHYTOPATHOLOGY, V45, P63

[6] GROGAN RG, 1952, PHYTOPATHOLOGY, V42, P573

[7] GROGAN RG, 1952, PHYTOPATHOLOGY, V42, P577

[8] HEIN ALICE, 1965, Phytopathologische Zeitschrift, V52, P29

[9] HEIN ALICE, 1964, Zeitschrift fur Pflanzenkrankheiten, V71, P267

[10] HEIN A, 1964, Z PFLANZKRANKH, V71, P270