Genotype × Environment Interaction Studies of Promising Teppi Coffee (Coffea arabica L.) Genotypes in Southwestern Ethiopia

Table 4

AMMI analysis of variance for mean bean yield (kg ha⁻¹) of 17 coffee genotypes tested across six environments in 2016/17 and 2017/18.

SV	DF	MS	SS	Explained (%)	Cumulative (%)	F
Env	5	868314.3	4341571.7	52.65	52.65	325.16
Gen	16	109207	1747311.24	21.19	73.84	40.89
EnvGen	80	26959	2156697.7	26.16	100	10.09
PC1	20	47560.01	951200.3	44.11	44.11	18.13
PC2	18	32388.9	583000.3	27.03	71.14	12.34
PC3	16	19085.6	305369.13	14.16	85.29	7.27
PC4	14	13925.6	194958.71	9.04	94.34	5.31
PC5	12	10180.9	122169.33	5.67	100	3.88
Residuals	102	2670.4	272380.9	0	0

Note: , significant difference at and , DF = degree of freedom, SS = sum of squares, MS = mean square, IPCA = interaction principal component axis and SV = source of variation.