Journal article
Spatial distribution of root lesion nematodes (Pratylenchus spp.) in a long-term no-till cropping system and their relationship with soil and landscape properties
European journal of plant pathology, Vol.150(4), pp.1011-1021
04/2018
Handle:
https://hdl.handle.net/2376/109450
Abstract
The Cook Agronomy Farm of Washington State University is a long-term precision agriculture study site. Since 2000, the farm has been in various three-year no-till rotations with winter wheat, spring wheat, and various rotation crops such as barley, canola, peas, lentils, and chickpea. The spatial distribution of root lesion nematodes (Pratylenchus spp.) and their relationships with soil and terrain variables were studied by collecting soil samples at 127 and 124 geo-referenced points in two 12-ha fields during the spring of 2010 and 2011, respectively. Pratylenchus spp. were detected in more than 85% of the sampled locations in both fields. Nematode densities spatially mapped using ArcGIS software occurred in an aggregated pattern. Previous rotation crops had no effect on the spatial distribution. Classification and regression tree analysis (CART) using soil and terrain variables, and nematode density, explained 61 and 34% of the variability associated with nematode density in 2010 and 2011, respectively. Soil edaphic factors, such as organic matter, were stronger predictors of nematode populations than rotation effects.
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Details
- Title
- Spatial distribution of root lesion nematodes (Pratylenchus spp.) in a long-term no-till cropping system and their relationship with soil and landscape properties
- Creators
- Shyam Kandel - 0000 0004 0404 0958 grid.463419.d USDA-ARS Crop Improvement and Protection Research Unit 1636 E. Alisal St. Salinas CA 93905 USARichard Smiley - 0000 0001 2112 1969 grid.4391.f Columbia Basin Agricultural Research Center Oregon State University P.O. Box 370 Pendleton OR 97801 USAKimberly Garland-Campbell - 0000 0001 2157 6568 grid.30064.31 USDA-ARS Wheat Health, Genetics and Quality Research Unit Washington State University P.O. Box 6430 Pullman WA 99164 USAAxel Elling - 0000 0001 2157 6568 grid.30064.31 Department of Plant Pathology Washington State University Pullman WA 99164 USADavid Huggins - 0000 0001 2157 6568 grid.30064.31 USDA-ARS Northwest Sustainable Agroecosystems Research Unit Washington State University P.O. Box 6420 Pullman WA 99164 USATimothy Paulitz - 0000 0001 2157 6568 grid.30064.31 USDA-ARS Wheat Health, Genetics and Quality Research Unit Washington State University P.O. Box 6430 Pullman WA 99164 USA
- Publication Details
- European journal of plant pathology, Vol.150(4), pp.1011-1021
- Academic Unit
- Crop and Soil Sciences, Department of; Plant Pathology, Department of
- Publisher
- Springer Netherlands; Dordrecht
- Grant note
- Washington Grain Commission
- Identifiers
- 99900547287501842
- Language
- English
- Resource Type
- Journal article