Comparisons of Herbicide Treated and Cultivated Herbicide-Resistant Corn

Table 4

Crop Growth Rates (𝑔𝑚⁻¹𝑑⁻¹) and Relative Growth Rates (𝑔𝑔⁻¹𝑑⁻¹) of Six Herbicide Resistant Corn Hybrids From Growth Stage V3 Until Growth Stage R1, Grown at Stoneville, MS.†

Year	Sampling Interval					Sampling Interval
	1-2	2-3	3-4	4-5	5-6	1-2	2-3	3-4	4-5	5-6
	gm^−1d^−1					gg^−1d^−1
2005	10.9a	20.4	45a	30.6ab	30.1	0.9a	0.6a	0.5ab	0.2b	0.3
2006	5.2b	12.8	40.8a	19.1b	33.4	0.5b	0.4b	0.6a	0.2b	0.2
2007	6.4b	18	21.2b	45.6a	29.8	0.3c	0.5b	0.3b	0.4a	0.2

†Means of 4 replications, 6 hybrids (DKC 60-17RR, DKC 60-19RR, G8118RR, 31G98, 34A55LL, G8287RR (2005 and 2006), and G8270RR (2007), and 2 weed control methods (herbicide or cultivation). Means within a column followed by the same letter are not significantly different by LSMeans (𝑃≤.01). Means within a column not followed by a letter are not significantly different.