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411.
Youssef Manasfi Marc-Antoine Cannesan Wassila Riah Mélanie Bressan Karine Laval Azeddine Driouich Maïté Vicré Isabelle Trinsoutrot-Gattin 《European journal of plant pathology / European Foundation for Plant Pathology》2018,150(4):1011-1021
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. 相似文献
412.
Richard Power Tom McHale Isabelle Gasnier Jean-Luc Genet Ronald Hamlen 《Pest management science》1998,54(3):258-260
Sensitivities of Septoria tritici populations to flusilazole were stable across Europe during the three seasons, 1993–1995 inclusive. © 1998 Society of Chemical Industry 相似文献
413.