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

Table 2

Stunting from POST applications of 2,4-D and dicamba as affected by application timing in 2014 at Rocky Mount and Kinston, North Carolina.

Application; timing; cm	Herbicide; g ae ha^−1	Stunting
		7 DAA	21 DAA	35 DAA
		%
20	2,4-D 100	2	0	0
	2,4-D 220	7	1	0
	2,4-D 330		5	1
	Dicamba		3	0
32	2,4-D 100	3	0	0
	2,4-D 220	8	3	0
	2,4-D 330	12	7	2
	Dicamba	17	7	2
45	2,4-D 100	2	0	0
	2,4-D 220	2	1	0
	2,4-D 330	6	2	0
	Dicamba	10	4	2
55	2,4-D 100	0	0	0
	2,4-D 220	0	0	0
	2,4-D 330	2	0	0
	Dicamba	5	2	1
65	2,4-D 100	0	0	0
	2,4-D 220	0	0	0
	2,4-D 330	0	0	0
	Dicamba	3	1	0

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