AMMI Stability Analysis and Estimation of Genetic Parameters for Growth and Yield Components in Cassava in the Forest and Guinea Savannah Ecologies of Ghana

Table 3

Combined analyses of variance for seven traits evaluated on 20 cassava genotypes in two ecologies of Ghana.

Source	df	Plt_ht (cm)	Stem diam (cm)	Ht_branch	Rt_yld (t/ha)	DM%	HI	CMD score
Rep	2	741.60	0.74	1739.90	178.22	11.20	0.02	0.84
Geno (G)	19
Env (E)	3
	57
Residual	158	750.70	0.09	481.50	61.58	13.95	0.01	0.22
Total	239

at , , and , respectively, ns = not significant (), df = degree of freedom, Plt_ht = plant height (cm), Stem diam = stem diameter (cm), Ht_branch = height at first branching (cm), Rt_yld = storage root yield (t/ha), DM% = dry matter content (%), HI = harvest index, and CMD_Score (1–5) = cassava mosaic disease score (based on scoring chart where 1 denotes no symptom and 5 denotes highly diseased plants).