Rice Tolerance to Saflufenacil in Clomazone Weed Control Program

Table 2

Rice (Oryza sativa L.) visible injury at 10 days after emergence (DAE) and 22 DAE in 2009 and 15 DAE in 2010 in response to saflufenacil and clomazone applied preemergence. Saflufenacil results were averaged across clomazone rates, and clomazone results were averaged across saflufenacil rates.

Saflufenacil rates (g ha^−1)	Visual injury^a
	2009		2010
	10 DAE	22 DAE	15 DAE
	%
0	5^b	2^b	21 ab^c
25	4	1	17 b
50	6	2	16 b
100	6	2	16 b
200	9	3	23 a
Clomazone rates (g ha^−1)
0^d	0 c	2 ab	1 c
392	8 b	1 b	24 b
505	11 a	3 a	31 a

^aInjury was estimated visually using a scale of 0 to 100% where 0 = no rice injury and 100 = rice death. ^bMeans were not different according to F-test at P ≤ 0.05. ^cMeans followed by a different letter are significantly different according to the Tukey’s test (P ≤ 0.05). ^dPlots that did not receive clomazone were treated with propanil plus quinclorac.