Table 6 Genetic distance (GD), hybrid yield, yield heterosis (PMPH, PBPH and PCH) and specific combining ability (SCA) for 21 marker group crosses in pearl millet across three locations.

Marker group cross	Number of hybrids	Mean GD	HGY (kg ha⁻¹)	PMPH (%)	PBPH (%)	PCH over ICTP 8203 (%)	PCH over ProAgro 9444 (%)	SCA
G2 × G6	4	0.73	2461.7	20.2	6.8	43.2	− 14.8	93.3
G2 × G5	2	0.67	2454.7	9.3	6.8	42.8	− 15.1	198.4
G4 × G5	2	0.72	2341.8	4.1	− 2.8	36.2	− 19.0	131.3
G1 × G4	6	0.74	2340.8	6.7	− 2.3	36.1	− 19.0	− 167.2
G1 × G5	3	0.71	2318.4	8.4	1.4	34.8	− 19.8	57.4
G4 × G6	4	0.71	2295.4	12.6	− 3.6	33.5	− 20.6	− 7.6
G6 × G7	6	0.73	2294.8	15.1	0.4	33.4	− 20.6	1.2
G5 × G7	3	0.83	2286.6	3.7	0.4	33.0	− 20.9	34.4
G1 × G2	6	0.72	2284.0	4.4	− 3.1	32.8	− 21.0	− 25.3
G1 × G6	6	0.71	2279.3	19.7	4.2	32.5	− 21.2	46.3
G2 × G4	4	0.73	2266.0	− 1.7	− 8.5	31.8	− 21.6	− 4.9
G1 × G3	3	0.78	2257.9	17.1	8.9	31.3	− 21.9	247.8
G4 × G7	6	0.77	2235.3	− 1.9	− 8.4	30.0	− 22.7	− 74.4
G2 × G7	6	0.80	2227.7	− 1.6	− 5.3	29.5	− 22.9	13.8
G1 × G7	9	0.76	2221.0	3.2	− 4.1	29.2	− 23.2	75.2
G5 × G6	2	0.79	2151.1	9.8	− 4.1	25.1	− 25.6	107.8
G2 × G3	2	0.79	2017.4	− 1.5	− 12.4	17.3	− 30.2	− 59.0
G3 × G4	2	0.73	2014.3	− 2.1	− 12.5	17.1	− 30.3	− 18.4
G3 × G5	1	0.85	1966.8	− 1.3	− 10.3	14.4	− 32.0	− 61.0
G3 × G6	2	0.81	1921.3	8.7	− 4.6	11.7	− 33.5	− 18.8
G3 × G7	3	0.78	1835.5	− 8.5	− 17.1	6.7	− 36.5	− 156.1
Mean		0.75	2212.9	5.9	− 3.3	28.7	− 23.4	19.7

HGY Hybrid grain yield, PMPH Panmictic mid-parent heterosis, PBPH Panmictic better parent heterosis, PCH Panmictic commercial heterosis, SCA Specific combining ability.

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