Table 1.

Analysis of variance for the effects of BD, cultivar, and position with their interactions on economic traits.

Effect/contrast	DF	Average price	Proportion of superior tobacco	Output value
--------------Probability of a greater F value------------
Browning degree(B)	3	<0.0001	<0.0001	<0.0001
Variety(V)	2	0.1037	0.3267	0.0001
Position (P)	2	<0.0001	<0.0001	<0.0001
BV	6	0.8928	0.8728	0.5202
BP	6	0.1425	0.0177	<0.0001
VP	4	0.4851	0.9529	0.0942
BVP	12	0.5637	0.9905	0.7949