Table 1.
Gametocidal effect of sublethal dose application of various herbicides on OSR cv. Qin8Ca
| Herbicide | Dosage (mg ha-1) | Percentage of MS plant (%) | SD | Percentage of damaged plant (%) | SD |
|---|---|---|---|---|---|
| Bensulfuron | 400 | 100.0 | 0.0 | 96.5 | 6.0 |
| 300 | 99.9 | 0.2 | 27.8 | 5.1 | |
| 200 | 91.7 | 3.3 | 0.0 | 0.0 | |
| 100 | 13.5 | 6.4 | 0.0 | 0.0 | |
| Chlorimuron-ethyl | 360 | 100.0 | 0.0 | 97.9 | 2.3 |
| 240 | 100.0 | 0.1 | 12.1 | 3.6 | |
| 120 | 86.2 | 2.6 | 0.0 | 0.0 | |
| Chlorsulfuron | 240 | 100.0 | 0.0 | 95.3 | 5.3 |
| 180 | 100.0 | 0.0 | 49.3 | 6.9 | |
| 120 | 100.0 | 0.0 | 11.1 | 1.4 | |
| 60 | 90.4 | 4.3 | 1.6 | 1.6 | |
| Ethoxysulfuron | 405 | 0.0 | 0.0 | 96.9 | 5.4 |
| 270 | 0.0 | 0.0 | 26.4 | 6.1 | |
| 135 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Ethametsulfuron | 60,000 | 1.9 | 1.6 | 19.4 | 2.7 |
| 40,000 | 0.0 | 0.0 | 0.0 | 0.0 | |
| 20,000 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Flazasulfuron | 675 | 100.0 | 0.0 | 72.1 | 2.7 |
| 450 | 79.8 | 2.6 | 38.0 | 1.7 | |
| 225 | 41.3 | 5.4 | 0.0 | 0.0 | |
| Foramsulfuron | 450 | 100.0 | 0.0 | 93.3 | 5.9 |
| 300 | 86.6 | 6.4 | 37.0 | 3.7 | |
| 150 | 2.4 | 0.5 | 0.0 | 0.0 | |
| Halosulfuron-methyl | 1200 | 100.0 | 0.0 | 100.0 | 0.0 |
| 900 | 100.0 | 0.0 | 73.4 | 6.3 | |
| 600 | 99.9 | 0.1 | 3.4 | 1.9 | |
| 300 | 89.8 | 2.6 | 0.0 | 0.0 | |
| Idosulfuron-methyl sodium | 180 | 100.0 | 0.0 | 62.0 | 12.9 |
| 120 | 70.7 | 4.4 | 33.0 | 5.3 | |
| 60 | 23.2 | 3.9 | 0.0 | 0.0 | |
| Mesosulfuron-methyl | 450 | 100.0 | 0.0 | 95.9 | 6.3 |
| 300 | 60.2 | 10.9 | 48.3 | 11.2 | |
| 150 | 37.1 | 3.3 | 0.0 | 0.0 | |
| Metsulfuron-methyl | 360 | 100.0 | 0.0 | 95.6 | 7.6 |
| 240 | 99.9 | 0.2 | 17.2 | 3.0 | |
| 120 | 56.2 | 9.8 | 13.3 | 6.7 | |
| Monosulfuron | 400 | 100.0 | 0.0 | 40.0 | 2.8 |
| 300 | 100.0 | 0.0 | 14.6 | 7.9 | |
| 200 | 75.7 | 5.2 | 1.3 | 1.2 | |
| 100 | 14.7 | 4.8 | 0.0 | 0.0 | |
| Nicosulfuron | 400 | 100.0 | 0.0 | 49.4 | 12.1 |
| 300 | 100.0 | 0.0 | 10.7 | 4.3 | |
| 200 | 92.8 | 2.4 | 0.0 | 0.0 | |
| 100 | 61.2 | 5.3 | 0.0 | 0.0 | |
| Oxasulfuron | 1200 | 100.0 | 0.0 | 98.1 | 3.3 |
| 900 | 100.0 | 0.0 | 34.9 | 9.5 | |
| 600 | 99.8 | 0.2 | 4.4 | 1.9 | |
| 300 | 62.8 | 4.9 | 0.0 | 0.0 | |
| Pyrazosulfuron-ethyl | 300 | 100.0 | 0.0 | 73.1 | 10.8 |
| 225 | 100.0 | 0.0 | 20.3 | 8.0 | |
| 150 | 91.9 | 3.0 | 9.2 | 2.4 | |
| 75 | 27.8 | 4.9 | 0.9 | 0.8 | |
| Rimsulfuron | 600 | 100.0 | 0.0 | 100.0 | 0.0 |
| 400 | 71.2 | 11.4 | 79.0 | 5.1 | |
| 200 | 44.4 | 4.6 | 9.9 | 5.4 | |
| Sulfometuron-methyl | 2200 | 100.0 | 0.0 | 91.6 | 7.4 |
| 1650 | 100.0 | 0.0 | 45.1 | 4.5 | |
| 1100 | 72.3 | 3.8 | 0.9 | 0.7 | |
| 550 | 22.4 | 3.1 | 1.0 | 0.9 | |
| Sulfosulfuron | 800 | 100.0 | 0.0 | 89.4 | 7.5 |
| 600 | 100.0 | 0.0 | 18.7 | 7.2 | |
| 400 | 99.9 | 0.1 | 7.8 | 5.0 | |
| 200 | 82.1 | 2.4 | 0.9 | 0.0 | |
| Thifensulfuron | 300 | 100.0 | 0.0 | 93.4 | 2.9 |
| 200 | 77.3 | 5.1 | 36.6 | 2.9 | |
| 100 | 30.4 | 8.7 | 0.0 | 0.0 | |
| Triflusulfuron-methyl | 1000 | 100.0 | 0.0 | 60.0 | 4.6 |
| 750 | 100.0 | 0.0 | 1.4 | 0.8 | |
| 500 | 100.0 | 0.0 | 0.0 | 0.0 | |
| 250 | 31.7 | 8.9 | 0.0 | 0.0 | |
| Imazethapyr | 1500 | 100.0 | 0.0 | 33.7 | 5.6 |
| 1125 | 100.0 | 0.0 | 17.8 | 4.2 | |
| 750 | 94.6 | 4.9 | 0.6 | 1.1 | |
| 375 | 33.6 | 9.7 | 0.0 | 0.0 | |
| Imazamox | 800 | 100.0 | 0.0 | 56.8 | 6.9 |
| 600 | 100.0 | 0.0 | 11.7 | 3.1 | |
| 400 | 95.3 | 3.6 | 0.0 | 0.0 | |
| 200 | 30.4 | 5.4 | 0.0 | 0.0 | |
| Florasulam | 600 | 0.0 | 0.0 | 96.7 | 2.9 |
| 400 | 0.0 | 0.0 | 33.8 | 7.8 | |
| 200 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Flumetsulam | 600 | 0.0 | 0.0 | 100.0 | 0.0 |
| 400 | 0.0 | 0.0 | 21.6 | 8.1 | |
| 200 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Penoxsulam | 600 | 0.0 | 0.0 | 100.0 | 0.0 |
| 450 | 0.0 | 0.0 | 20.3 | 5.4 | |
| 300 | 0.0 | 0.0 | 2.7 | 2.2 | |
| 150 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Bispyribac-sodium | 800 | 0.0 | 0.0 | 100.0 | 0.0 |
| 600 | 0.0 | 0.0 | 78.7 | 5.7 | |
| 400 | 0.0 | 0.0 | 29.4 | 8.0 | |
| 200 | 0.0 | 0.0 | 12.6 | 2.3 | |
| Flucarbazone-sodium | 300 | 90.2 | 5.4 | 70.4 | 15.9 |
| 200 | 62.4 | 8.6 | 1.9 | 1.4 | |
| 100 | 5.7 | 1.2 | 0.0 | 0.0 |
aValues in bold type show the treatment resulting in both satisfactory gametocidal effect and acceptable phytotoxicity. SD means standard deviation