Yield Stability Analysis of Maize (Zea mays L.) Hybrids Using Parametric and AMMI Methods

Table 4

Ranking of 12 hybrids of maize and 8 environments based on the AMMI stability value (ASV).

		Mean (t/ha)	Rank (A)	IPCA 1	IPCA 2	ASV	ASV rank (B)	YSI (A + B)	YSI rank
Genotypes	G1	6.76	2	0.025	−0.001	0.056	8	10	4
	G2	5.99	8	−0.025	0.005	0.055	7	15	9
	G3	6.02	7	0.0004	0.044	0.044	5	12	7
	G4	6.05	6	0.005	−0.019	0.022	2	8	3
	G5	6.31	3	0.029	−0.011	0.066	11	14	8
	G6	5.55	11	0.026	−0.002	0.058	9	20	10
	G7	6.9	1	0.019	−0.010	0.043	4	5	1
	G8	6.3	4	−0.003	−0.022	0.023	3	7	2
	G9	5.78	9	0.001	−0.003	0.005	1	10	5
	G10	5.72	10	0.032	−0.0007	0.072	12	22	11
	G11	6.08	5	−0.021	−0.006	0.047	6	11	6
	G12	5.51	12	−0.027	0.001	0.060	10	22	12
Environments	E1	7.17	1	−0.022	−0.005	0.049	5	6	1
	E2	6.01	4	0.056	0.017	0.127	8	12	8
	E3	5.56	7	−0.011	0.005	0.025	1	8	4
	E4	4.84	8	−0.013	−0.02	0.035	3	11	7
	E5	5.81	5	0.021	−0.03	0.055	6	11	6
	E6	5.79	6	0.013	0.005	0.029	2	8	3
	E7	7.10	2	−0.022	−0.005	0.049	4	6	2
	E8	6.28	3	−0.021	0.041	0.062	7	10	5

G1: KSC703; G2: KSC260; G3: KSC705; G4: KSC400; G5: KSC706; G6: KSC704; G7: KSC707; G8: DC370; G9: SC647; G10: SC302; G11: SC604; G12: SC301. E1: Karaj Year 1; E2: Karaj Year 2; E3: Birjand Year 1; E4: Birjand Year 2; E5: Shiraz Year 1; E6: Shiraz Year 2; E7: Arak Year 1; E8: Arak Year 2.