Table 3.

Summary of statistical results for 43 trials subjected to analysis of variance

Injury level to Cry3-expressing corn roots	Root-feeding pressure on non-Bt corna	Node injury			Yield
		F	df	Pb	F	df	Pb
Unexpected (>1.0)	High	150.16	51.1	< 0.001	15.39	45.9	< 0.001
	Moderate	45.12	25.2	< 0.001	1.55	25.1	0.209
	Low	12.97	20	< 0.001	1.47	19.5	0.245
Normal (<1.0)	High	104.42	110	< 0.001	1.93	15	0.148
	Moderate	75.24	24.8	< 0.001	4.88	26.1	0.003
	Low	7.73	48.2	< 0.001	5.89	25.5	0.001

^aTrials were assigned one of the three feeding pressure categories based on non-Bt node injury scale (NIS) ratings: high (>2 NIS), moderate (1 to < 2 NIS), or low (<1 NIS).

^bFisher’s LSD.