Ear Leaf Photosynthesis and Related Parameters of Transgenic and Non-GMO Maize Hybrids

Table 1

Maize hybrids, their genotype (stacked gene, SG; glyphosate tolerant, GT; non-GMO), and maturity rating (d) grown under furrow irrigation at two sites, a Bosket fine sandy loam and a Tunica clay soil at Stoneville, MS, in 2011 and 2012.

Hybrid (genotype)	Added traits	Maturity (d)
Pioneer 31G96 (SG)	HX1, LL, and RR2	117
Dekalb DKC 66-96 (SG)	GENVT3Pro	116
Dekalb DKC 67-21 (SG)	GENVT3Pro and RR2	117
Pioneer 31P42 (SG)	HX1, LL, and RR2	119
Dekalb DKC 67-22 (GT)	RR2	117
Pioneer 31P40 (GT)	RR2	119
Pioneer 1615R (GT)	RR2	116
Pioneer 33N55 (GT)	RR2	113
Pioneer 33N56 (non-GMO)	None	113
Pioneer 31P41 (non-GMO)	None	119

GENVT3Pro = Genuity VT Triple PRO RIB Complete (3 modes of insect protection, herbicide tolerance, and refuge in a bag).
RR2 = glyphosate tolerant.
HX1 = Herculex 1 insect protection (3 modes of insect protection).
LL = glufosinate tolerant.
non-GMO = nongenetically modified. Traditional genetics.
Pioneer Hybrids (DuPont Pioneer, Johnston, IA).
Dekalb Hybrids (Monsanto Co., St. Louis, MO).