Genotype by environment interaction analysis for Fusarium head blight response and yield performance of bread wheat (Triticum aestivum L.) in southern Ethiopia

Table 7 Additive main effects and multiplicative interaction variance of analysis for disease severity and yield of eleven genotypes tested across different environments during the 2019 main cropping season

Source of variation^a	AMMI analysis of variance for disease severity (%)						AMMI analysis of variance for yield (t/ha)
	Interactions^b			Sum of square explained			Interactions^b			Sum of square explained
	DF	TSS	MS^c	Total (%)	G × E (%)	G × E cumulative (%)	DF	TSS	MS^c	Total (%)	G × E (%)	G × E cumulative (%)
Total	230	131,819	573**				230	494.30	2.149**
TRT	76	103,587	1363**	78.60			76	411.20	5.411**	83.20
G	10	13,956	1396**	10.60			10	35.00	3.50**	7.10
E	6	61,990	10,332**	47.00			6	287.70	47.95**	58.20
Block	14	4456	318**	3.40			14	6.00	0.43**	1.20
G × E	60	27,641	461**	21.00			60	88.50	1.48**	17.90
IPCA 1	15	14,615	974**	11.10	52.90		15	35.40	2.36**	7.20	40.0
IPCA 2	13	7638	588**	5.80	27.60	80.50	13	29.50	2.27**	5.97	33.30	73.33
Residuals	32	5388	168**	23.43			32	23.70	0.74 ns	4.80
Error	140	23,777	170**	18.00			140	77.10	0.55	15.60

^aTRT, treatments; G, genotype, E, environment, G × E, genotype by environment; and IPCA, interaction principal component axis
^bDF, degree of freedom; TSS, total sum of square; and MS, mean squares for disease severity and yield
^c**Indicates significant difference at P < 0.01 for disease severity and yield