Table 1.

The maize hybrid materials used in the experiment.

Code	Hybrid	Parental line			Pedigree
		Female		Male
MH1	Cx				Hybrid commercial of Cargill
MH2	Pxy				Hybrid commercial of Pioneer
MH3	NKxx				Hybrid commercial of Monsanto
MH4	Bisi x				Hybrid commercial of Bisi
MH5	PA	1011	×	1016	Female is a downy mildew resistant line; male is a high nutrition line
MH6	PB	1014	×	1018	Female is a downy mildew resistant line, and male is a high protein line
MH7	PC	1019	×	1020	Both parents are high nutrition lines
MH8	PE	1007	×	1008	Female is a high yield line, and male is a high nutrition line
MH9	PF	1006	×	1007	Female is a high nutrition line, and male is a high yield line
MH10	PG	1008	×	1009	Female is a high nutrition line; male is a downy mildew resistant line
MH11	PH	1002	×	1003	Female is a high nutrition and downy mildew resistant line; male is a high yield line