Herbicide
|
GR50 (g ai ha−1)a
|
I50 (μM)b
|
---|
S
|
MR
|
RIc
|
S
|
MR
|
RIc
|
---|
Tribenuron-methyl
|
0.27 ± 0.09
|
1.66 ± 0.72
|
6.15
|
0.34 ± 0.05
|
0.42 ± 0.17
|
1.24
|
Tribenuron-methyl+malathion
|
0.16 ± 0.09
|
0.30 ± 0.10
|
1.88
|
_
|
_
|
_
|
- The level of resistance (RI) indicated by the MR/S ratios. Each value represents the mean (±SE) of two experiments, each containing three replicates
- aGR50, herbicide rate causing 50% growth reduction of plants
- bI50, herbicide concentration causing 50% inhibition of the ALS activity
- cRI (resistance index) = GR50 or I50 (MR)/GR50 or I50 (S)