Genotype X Environment Interaction and Yield Stability in Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) Landraces in Ethiopia

Table 2

Mean grain yield (kg ha⁻¹) of 25 cowpea landraces tested at six environments in the 2019 cropping season.

Code	Genotypes	Environments						GGM	Rank
		Sekota	Kobo	Sirinka	Melkassa	Miesso	Babile
G1	NLLP_CPC_07-47	1761.1^ef	1776.5^ghi	2603.2^a	2642.1^bcde	1800.1^efg	2196.0^cde	2129.8^b–h	11
G2	NLL_CPC_07-74	1900.0^abcde	2538.3^cd	2401.6^ab	2581.5^bcdef	2729.5^bcd	1506.7^ghij	2276.3^bc	3
G3	NLLP_CPC_07-168	2261.1^a	1255.3^lm	2486.0^ab	1900.6^ef	2980.7^abc	1242.3^jkl	2021.0^g–j	16
G4	NLLP_CPC_07-27	2094.4^abcde	2394.0^cde	1974.5^cd	2377.0^bcdef	3073.8^abc	1588.3^fghij	2250.3^bcd	6
G5	NLLP_CPC_07-05	1754.2^f	2170.4^ef	1765.3^d	2660.3^bcde	3065.4^abc	1055.0^l	2078.4^c–i	12
G6	NLLP_CPC_07-01	2014.6^abcde	1905.6^fgh	743.2^i	2525.8^bcdef	2664.9^bcd	1446.6^hijk	1883.5^i–l	19
G7	NLL_CPC_07-49	1847.9^cde	1491.0^ijkl	1868.2^cd	2891.0^abc	2756.8^abcd	2724.8^a	2263.3^bc	5
G8	NLLP_CPC_07-77	1858.4^bcde	1406.8^jklm	2458.4^ab	1905.2^def	2635.2^bcd	1408.0^hijkl	1945.3^h–l	18
G9	NLL_CPC_07-46A	2198.6^abc	1938.4^fgh	1154.2^fgh	1907.7^def	3074.6^abc	1969.9^def	2040.6^g–i	15
G10	ACC 211557	1775.0^def	1661.6^hij	1982.0^cd	2532.4^bcdef	2615.3^bcd	1710.7^fgh	2046.2^e–i	14
G11	ACC222890	1712.5^ef	1299.7^klm	1625.8^def	2482.^3bcdef	1027.2^h	1062.6^kl	1535.0^o	25
G12	Dass 002	1393.1^f	2174.3^ef	1126.6^fgh	1960.8^def	1465.3^gh	1661.3^fghi	1630.2^no	24
G13	Dass 007	1837.5^cde	2671.6^bc	1370.2^ef	2199.7^cdef	2994.6^abc	1246.8^jkl	2053.4^d–i	13
G14	NLLP_CPC_07-69	1400.0^f	1729.0^ghi	1802.3^cd	1849.5^f	1705.1^fg	1396.1^hijkl	1647.0^mno	23
G15	NLLP_CPC_07_	1865.3^abcde	1206.2^m	1355.0^ef	2424.2^bcdef	2787.7^abcd	1311.0^ijkl	1824.9^klm	21
G16	ACC 233403	2038.9^abcde	2522.7^cd	992.9^ghi	3083.2^ab	2784.6^abcd	2320.1^bcd	2290.4^b	2
G17	NLLP_CPC_07-28	1406.9^f	1915.9^fgh	809.3^hi	2360.2^bcdef	2256.8^def	1841.7^efg	1765.1l^mn	22
G18	NLLP_CPC_07-46B	1868.8^abcde	1570.0^ijk	1415.3^ef	3433.4^a	1746.6^fg	1940.3^ef	1995.7^g–k	17
G19	ACC 244804	1768.1^def	2592.7^c	836.9^hi	2523.6^bcdef	1793.1^efg	1512.9^ghij	1837.9^jkl	20
G20	NLLP_CPC_07-29	1997.2^abcde	2004.1^fg	1961.1^cd	2273.7^cdef	3090.4^abc	1952.2^def	2213.1^b–f	8
G21	ACC 223402	2118.8^abcd	2309.9^de	1667.3^de	2637.2^bcde	2708.0^bcd	1749.9^fgh	2198.5^b–f	9
G22	NLLP_CPC_07_48B	1816.7^cde	1674.0^hij	2321.9^ab	2460.1^bcdef	2352.9^de	2340.5^bc	2161.0^b–g	10
G23	NLLP_CPC_07-03	2087.5^abcde	1525.3^ijkl	1199.6^fg	2691.6^bcd	3372.0^a	2578.8^ab	2242.5^b–e	7
G24	NLLP_CPC 07–55	2247.2^ab	3060.0^a	2150.4^cd	2928.5^abc	3205.1^ab	2203.3^cde	2632.4^a	1
G25	Kanketi	2181.3^abc	2871.6^ab	1831.7^cd	2945.1^abc	2534.1^cd	1275.9^ijkl	2273.3^bc	4
	EGM	1888.2	1986.6	1676.1	2487.1	2528.8	1729.7	2049.4
	CV (%)	10.37	7.73	11.44	15.89	12.69	11.72

 = significant at , GGM = genotypic grand mean, EGM = environmental grand mean, CV (%) = coefficient of variation in percent.