Table 3. Analysis of variance for reduced model of the distribution of P. verrucosum inoculum found in grain and grain clumps (CFU/g) collected in winter 2011–2013 from on-farm storage bins located in Ontario, Canada.

Fixes effect*	dfn	dfd	F	Pr > F
Farms	52	33	0.83	0.7299
Years	2	33	0.83	0.4453
Sample source 1	5	74	5.13	0.0004
Wheat classes 2	4	74	0.05	0.9958
Bin capacity (MT) 3	17	47	1.71	0.0751
Moisture at sampling (%) 4	8	47	4.24	0.0007
Weeks in storage	14	47	3.52	0.0006

*Data transformed before analysis [ln(X+1)].

¹Sample source: untouched surface (48%), disturbed surface (10%), first loads (15%), intermediate loads (11%), last loads (10%), grain clumps (6%);

²Wheat classes: Soft red winter wheat (77%), hard red winter wheat (5%), soft white winter wheat (7%), Durum (8%), Blend (8%);

³Bin capacity: divided in 24 intervals ranging from 100 to 5000 metric tons (MT);

⁴Moisture content was not determined in grain clumps