NDLI: Ecology ofParatrichodorus allius and its relationship to the corky ring-spot disease of potato in the Pacific Northwest

Content Provider	Springer Nature Link
Author	Mojtahedi, H. Santo, G. S.
Copyright Year	1999
Abstract	Paratrichodorus allius, a vector of the tobacco rattle virus which causes the corky ringspot disease (CRS) in potato, was identified in soil samples from Oregon and Washington. Two populations from potato fields in Pasco, WA and Umatilla, OR reproduced successfully on alfalfa, wheat, and corn which are commonly rotated with potato, and most weeds associated with this crop in the Pacific Northwest. Greenhouse studies showed thatP. allius was sensitive to low soil moisture, and increased 10 and 100 fold on Samsun NN tobacco in soil above field capacity compared to 1/2 and 1/3 field capacity, respectively. Population dynamic studies for 1996 and 1997 on a potato-wheat cropping sequence showed thatP. allius declined after the winter wheat cover crop was disked in the spring of 1996, and remained low on potato at the 0–90 cm soil profile, with no evidence of downward migration. In 1997,P. allius declined early in the season on wheat, and remained low until June–July when it peaked before declining again. In soil columns,P. allius placed 30 cm below a confined tobacco root system was able to reach and transmit tobacco rattle virus. The nematodes below 30 cm transmitted the virus only when plant roots were allowed to grow to that depth.
Starting Page	273
Ending Page	280
Page Count	8
File Format	PDF
ISSN	1099209X
Journal	American Potato Journal
Volume Number	76
Issue Number	5
e-ISSN	18749380
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-01-01
Publisher Institution	Potato Association of America
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Life Sciences Plant Sciences Animal Genetics and Genomics Agriculture Plant Physiology Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Plant Science Agronomy and Crop Science

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Weed hosts ofParatrichodorus allius and tobacco rattle virus in the Pacific Northwest

Potato germplasm resistant to corky ringspot disease

Impact of wheat and corn as rotational crops on corky ringspot disease of Russet Norkotah potato

The economic impact of investment in the Pacific Northwest potato variety development program

Estimates of sample size for detection and estimation of incidence and severity of corky ringspot of potato

Antioxidants in potato

Potato after-cooking darkening

Evaluation of flusulfamide for the control of bacterial ring rot of potato

Segregation of total carotenoid in high level potato germplasm and its relationship to beta-carotene hydroxylase polymorphism

Ecology ofParatrichodorus allius and its relationship to the corky ring-spot disease of potato in the Pacific Northwest

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