Assessment of Tuber Yield Stability and Adaptability of Some Elite Yam Genotypes in the Guinea Savannah Ecology of Northern Ghana

Table 5

Ranking of 11 yam genotypes based on tuber yield, AMMI stability value, and yield stability index in five environments.

Genotype	Mean	IPCA [1]	IPCA [2]	ASV	RASV	Rank_yield	YSI	YSI rank
96/00594	14.93	−0.35	0.41	1.14	3	2	5	1
96/02610	14.14	0.40	0.13	1.36	4	3	7	2
96/02025	12.60	−0.05	−0.93	0.13	2	6	8	3
95/18949	12.78	0.80	−0.57	4.36	6	5	11	4
95/19158	16.03	−1.46	0.49	13.41	11	1	12	5
95/01942	12.01	0.63	−0.41	2.84	5	7	12	6
95/18922	9.49	−0.02	1.12	0.05	1	11	12	7
95/19177	13.79	−1.28	0.25	10.40	9	4	13	8
95/19156	11.09	1.05	−0.58	7.18	8	9	17	9
Laribako	9.85	−1.00	−1.01	6.51	7	10	17	10
95/18544	11.12	1.29	1.10	10.53	10	8	18	11