Determining the Risk Window for Aster Yellows in Carrot: New ...
Determining the Risk Window for Aster Yellows in Carrot: New ...
Determining the Risk Window for Aster Yellows in Carrot: New ...
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Part I: detection of seasonal trends <strong>in</strong><br />
AY risk<br />
Methods were modified from Nault et. al. (2009). Environ.<br />
Entomology 38(5):1347-1359.<br />
Our methods:<br />
Sweep data were averaged <strong>for</strong> each year, field, and date<br />
comb<strong>in</strong>ation<br />
Data were standardized us<strong>in</strong>g ei<strong>the</strong>r random effects models or<br />
regression spl<strong>in</strong>es<br />
Cubic polynomials were fit to <strong>the</strong> result<strong>in</strong>g “conditional” or<br />
“deseasonalized” data (l<strong>in</strong>ear model)
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