Zobrazeno 1 - 10
of 17
pro vyhledávání: '"J. W. Ashby"'
Publikováno v:
Proceedings of the New Zealand Weed and Pest Control Conference. 43:200-208
Autor:
J. W. Ashby
Publikováno v:
New Zealand Journal of Agricultural Research. 19:373-376
Subterranean clover red leaf virus (SCRLV) and bean yellow mosaic virus (BYMV) were isolated from alsike clover (Trifolium hybridum L.) grown in experimental plots on the Canterbury Plains. SCRLV c...
Publikováno v:
New Zealand Journal of Experimental Agriculture. 14:209-213
A strain of pea seed-borne mosaic virus isolated from the field pea cultivar ‘Pamaro’ and designated PSbMV-Pam was unable to infect pea cultivars homozygous for the mo gene which confers resistance to bean yellow mosaic virus. PSbMV-Pam was effic
Publikováno v:
Netherlands Journal of Plant Pathology. 90:225-245
Seventy one seed-lines representing 23 species of papilionoid legumes and 17 species of nonlegumes were collected and distributed to four countries; Australia, New Zealand, the Netherlands and the U.S.A. In each of these countries plants were grown f
Autor:
J. W. Ashby, A. Kyriakou
Publikováno v:
New Zealand Journal of Agricultural Research. 25:607-612
Subterranean clover red leaf virus (SCRL V) was purified from infected peas using cellulase to assist in virus extraction. Yields of 0.5–3.0 mg/kg tissue were obtained. The virions were isometric with a diam. of 27 nm and sedimented as a single com
Publikováno v:
New Zealand Journal of Agricultural Research. 22:361-365
Top-yellowing of peas, stunting and yellowing of dwarf beans. and leaf roll of broad beans in Canterbury, New Zealand, were found to be due almost entirely to infection with subterranean clover red...
Publikováno v:
New Zealand Journal of Agricultural Research. 26:271-277
A persistent aphid-borne virus was isolated from turnip (Brassica rapa L.) and from sugar beet and fodder beet (Beta vulgaris L.) plants with yellowing and subsequently from 30 other crop and weed species in 15 plant families. Myzus persicae (Sulz.)
Publikováno v:
New Zealand Journal of Agricultural Research. 22:637-640
Three sap-transmissible viruses, Australian lucerne latent virus (ALLV), lucerne transient streak virus (LTSV), and alfalfa mosaic virus (AMV), were detected in 8.2%, 3.5%, and 2.3% respectively of samples collected from symptom-less lucerne crops. W
Publikováno v:
Netherlands Journal of Plant Pathology. 85:99-111
A virus isolated from lettuce (Lactuca sativa), endive (Cichorium endivia), witloof chicory (C. intybus), and spinach (Spinacia oleracea), and from some weeds was shown to be beet western yellows virus (BWYV) by its host range, particle morphology an
Autor:
P. A. Burnett, J. W. Ashby
Publikováno v:
New Zealand Journal of Agricultural Research. 21:143-145
Barley stripe mosaic virus was found occurring naturally in barley plants growing at the Palmerston North Substation of Crop Research Division, DSIR, and in commercial barley crops in the Manawatu and Hawke's Bay. This virus was transferred experimen