Estimates of Combining Ability and Heterosis for Yield and Its Related Traits in Pearl Millet Inbred Lines under Downy Mildew Prevalent Areas of Senegal

Table 5

Mean squares for combining ability for studied traits across locations.

Source of variation	d.f.	DMI	FWT	PH	PLEN	PDIA	PT	TGW	PY	GY
Rep (site)	2	55.5	12.7	300.9	1.2	0.7	3.1	5.0	316965	25012
Site	1	158.8	178.8	711.6	280.0	0.2	12.2	26.1	9629606	6762757
Hybrid	33	188.1	45.7	2852.4	309.4	0.5	4.3	6.2	1962646	688597
Line (GCA)	16	229.6	64.9	3607.8	160.6	0.4	5.4	4.4	2290926	775061
Tester (GCA)	1	776.5	40.5	270.7	6226.1	1.6	0.7	64.8	1998612	123285
Line × tester (SCA)	16	110.0	26.8	2258.6	88.5	0.4	3.4	4.4	1632117	637466
Site × line	16	52.4	7.5	311.4	18.0	0.3	2.3	3.9	3292948	1351732
Site × tester	1	184.4	54.0	79.1	26.1	1.6	0.9	0.04	95074	444360
Site × line × tester	16	64.1	6.0	173.9	28.2	0.3	1.2	1.2	703213	424419
Error	134	39.7	5.3	281.7	25.4	0.3	1.9	1.8	1244846	414329

DMI: downy mildew incidence; FWT: flowering time; PH: plant height; PL: panicle length; PDIA: panicle diameter; PT: productive tillers; TGW: 1000-grain weight; PY: panicle yield; GY: grain yield; GCA: general combining ability; SCA: specific combining ability; d.f.: degree of freedom; Rep: replication. Significant at 0.05 and 0.01 and 0.001 probability levels, respectively.