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

Table 1

Planting and herbicide application dates.

Location	Year	Planting	Herbicide application						Harvest
			PRE	POST
				20 cm	35 cm	45 cm	55 cm	65 cm
Rocky Mount	2012	06/25	06/25	—	07/13	07/19	07/24	07/27	11/14
	2013	06/14	06/14	—	07/22	07/25	08/1	08/5	11/3
	2014	06/30	05/30	06/17	06/24	06/27	07/3	07/11	09/23
Clayton	2012	06/26	06/26	—	07/20	07/24	07/30	08/6	11/13
	2013	06/28	06/26	—	08/7	08/12	08/20	08/23	11/14
Kinston	2014	05/27	05/27	06/14	06/23	06/29	07/7	07/14	10/7

Abbreviation: PRE, preemergence; POST, postemergence.