Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield

Table 5

Lodging from POST applications of 2,4-D and dicamba as affected by herbicide rate in 2014 at Rocky Mount and Kinston, North Carolina.

Herbicide; g ae ha^−1	Application; timing; cm	Lodging
		7 DAA	21 DAA	35 DAA	Harvest
		%
2,4-D 100	20	0	0	2	0
	35	0	2	3	2
	45	0	3	3	0
	55	0	2	7	1
	65	0	5	8	2
2,4-D 220	20	0	3	3	0
	35	0	4	5	1
	45	0	5	6	1
	55	1	4	10	2
	65	2	5	10	2
2,4-D 330	20	1	4	6	2
	35	0	6	13	4
	45	2	6	15	6
	55	4	7	21	6
	65	5	9	19	7
Dicamba	20	1	3	7	2
	35	2	4	15	3
	45	3	8	17	5
	55	6	13	25	8
	65	6	12	21	13

Means within a column followed by the same letters are not different according to Fisher’s protected LSD test at .
DAA, days after application.