Table 4 Interaction of variety planted and date of sampling, while accounting for site, on expression of Cry1A in transgenic varieties for Figure 3.

Fixed Effects Num df Den df F-Value P > t Variety 7 14 77.19 <0.001 Date 6 24 3.86 0.008 Site 1 23.2 1.69 0.207 Date x Site 6 24 2.23 0.075 Date x Variety 42 168 2.39 <0.001 Variety x Site 7 14 0.79 0.609 Date x Variety x Site 42 168 0.66 0.944

Differences in least square means for various effects (LSMEANS option of PROC MIXED, SAS Institute, 1985). Random variables: Rep(Site) Rep x Variety, Date x Rep(Site), Variety x Date x Rep, Variety x Site x Rep. Note: For full data behind the summary presented in this table, the fully searchable complete table is available for download in Microsoft Excel format (file size is 1.58 MB). In order to view this file you will need to be using an IBM-compatible computer that has Microsoft Excel 97 or higher installed. Macintosh users should use this link to save the file to their hard drive. It will open with Microsoft Excel software. [full table]