Table 1. Differences due to treatment overall and to 4 specific effects.

Effect	P-values	increase/decrease	AICs with/without effect
Treatment overall	<0.0001*	–	724** vs 751
Masking	0.0289 *	decrease	335** vs 338
Atmospheric	0.0049 *	decrease	279** vs 285
Light	0.5257	–	532 vs 530**
Other	0.0086 *	increase	243** vs 248

Notes: Shown are P-values for significance of effect obtained from a chi-squared test of deviance, AIC values for models with and without the effect, and, if significant, whether specific effects increased or decreased germination at days 6 and 8. Significance at P<0.05 indicated by * and model with lower AIC, which is the preferred model, is indicated by **.