Table 3.

Analysis of variance calculated on mean scores of each testing date in (a) detached leaflet tests across three years and (b) in tuber slice tests done in 2006, 2007 and 2010 in the mapping population dH Balbina × 99-10/36

Factor	Dfa effect	Mean sum of squares effect	Dfa error	Mean sum of squares error	F	P	R2 (%)b
a. detached leaflet tests
{1}year	2	79.2	137	0.4	194.92	0.000	4.82
{2} genotype	115	20.8	137	0.4	51.26	0.000	72.87
Interaction: 1 × 2	162	3.9	137	0.4	9.53	0.000	19.09
b. tuber slice tests
{1}year	2	55.1	137	1.2	44.21	0.000	1.71
{2} genotype	115	43.8	137	1.2	35.19	0.000	78.30
Interaction: 1 × 2	162	5.5	137	1.2	4.43	0.000	13.88

^a - number of degrees of freedom. ^b - percentage of variance explained