Table 1.

P-Values denoting significance of main effects and interactions of type of potato (T), variety (V) and storage (St), with variety being nested within type, in ANOVA analyses of measured variables on the log_e scale for unstored and stored potato samples^a

	T	T.V	St	T.St	T.V.St
Asparagine	0.046	<0.001	<0.001	0.170	0.003
Glutamine	<0.001	<0.001	0.473	0.333	<0.001
Alanine	<0.001	<0.001	0.088	0.351	0.116
Aspartate	<0.001	<0.001	<0.001	0.932	0.001
GABA	0.004	<0.001	<0.001	0.041	<0.001
Glutamate	0.895	0.040	<0.001	0.022	0.009
Glycine	<0.001	0.033	0.901	0.357	0.002
Isoleucine	0.009	<0.001	<0.001	0.812	0.177
Leucine	0.079	0.005	<0.001	0.370	0.398
Lysine	0.147	<0.001	<0.001	0.772	0.013
Methionine	<0.001	0.028	0.018	0.396	0.414
Ornithine	0.250	0.168	0.007	0.229	0.482
Phenylalanine	0.006	<0.001	<0.001	0.671	0.107
Proline	<0.001	0.002	<0.001	0.649	0.063
Serine	<0.001	0.001	<0.001	0.472	<0.001
Threonine	<0.001	<0.001	<0.001	0.269	0.007
Tryptophan	0.258	<0.001	0.765	0.214	0.296
Tyrosine	0.067	<0.001	<0.001	0.760	0.018
Valine	<0.001	<0.001	<0.001	0.580	0.042
Total amino acids	0.011	<0.001	<0.001	0.452	0.020
Acylamide	<0.001	<0.001	<0.001	0.045	0.003
Fructose	<0.001	<0.001	<0.001	<0.001	<0.001
Glucose	<0.001	<0.001	<0.001	0.068	<0.001
Sucrose	<0.001	0.854	<0.001	<0.001	<0.001

^aNote that arginine and histidine were not assayed, while cysteine concentrations were too low to be measured accurately. A dot indicates interaction between any of the treatment factors. P-Values in bold indicate the significant (P < 0.05, F-test) ANOVA terms. See text in Results section for details of effects involving N.