표제지
국문요약
목차
I. 緖論 8
II. 硏究史 11
III. 材料 및 方法 13
1. 논 多年生 雜草의 出芽 및 Sulfonylurea系 除草劑 處理에 대한 殺草 反應 13
1) 출아율 및 출아속도 조사 13
2) 약제처리 및 방제효과 조사 13
2. Sulfonylurea계 제초제 처리농도에 따른 다년생잡초의 방제효과 14
IV. 結果 및 考察 16
1. 논 多年生 雜草의 出芽 및 Sulfonylurea系 除草劑 處理에 대한 殺草 反應 16
1) 다년생 논잡초의 출아상태 16
2) Sulfonylurea계 제초제 처리농도에 따른 다년생잡초의 방제효과 18
2. 벼 기계이앙답에서 제초제 저항성 물달개비와 올방개의 방제체계 22
1) 벼 생육 및 약해 22
2) 제초제 처리에 따른 잡초방제 효과 24
3) 벼 수량구성요소 및 수량 28
參考文獻 31
Abstract 35
감사의 글 37
Table 1. Application time and rates of the tested herbicides 15
Table 2. The days from planting to emergence and the percentage of emergence of perennial weeds 16
Table 3. Effect of rates of five sulfonylurea herbicides treatments on control of perennial weeds at 10, 15, and 20 days after planting 19
Table 4. Effect of rates of five sulfonylurea herbicides on dry weight and control of perennial weeds at 20 days after treatment 20
Table 5. Phytotoxicity and growth of rice plants as affected by herbicide treatments 23
Table 6. Dry weight of weeds and weeding efficacy as affected by herbicide treatments at 40 days after transplanting 24
Table 7. Dry weight of weeds and weeding efficacy as affected by herbicide treatments at 65 days after transplanting 26
Table 8. Effect of herbicide treatments on yield and its components of rice 29
Figure 1. Dry weight of perennial weeds at 30 days after planting. Means followed by the same letter are not significantly different at the 5% level by DMRT 18