Table 3.

Broad-sense heritability and variation for the seven phenotypic traits: tuber weight per plant (TW), tuber number per plant (TN), average weight per tuber (ATW), SG and uniformity of tuber size and shape and tuber eye depth

	TW	TN	ATW	SG	Size	Shape	Eye
Heritability	0.64	0.668	0.692	0.702	0.094	0.016	0.622
Variation	0.125	9.308	0.002	2.9 × 10−4	2.285	4.902	1.469
Total variation	0.815	16.11	0.002	6.8 × 10−5	1.067	1.414	1.488

Heritability and variation were calculated for the 38 individuals present at all three locations. The total variation represents the phenotypic variation among all individuals scored (n = 200–669).