Dynamic changes in physiological and biochemical properties of flue-cured tobacco of different leaf ages during flue-curing and their effects on yield and quality

Table 2 Analysis of variance for the effects of the age of tobacco leaves, year, stage and their interactions on tissue structure

Effect/contrast	DF	Upper epidermis	Lower epidermis	Palisade tissue	Spongy tissue	Leaf thickness
		-------------Probability of a greater F-value--------------
Leaf age (L)	2	0.0049	0.4107	<.0001	0.0025	0.0003
Year (Y)	1	0.0003	0.0411	0.2758	0.0533	0.1895
Stage (S)	6	<.0001	<.0001	<.0001	<.0001	<.0001
L*Y	2	0.093	0.2566	0.5202	0.1901	0.1859
L*S	12	0.0035	0.6867	0.0077	0.4023	0.0938
Y*S	6	0.0796	0.015	0.6096	0.3335	0.2378
LYS	12	0.0383	0.894	0.4387	0.3115	0.273

ISSN: 1471-2229