표제지
ABSTRACT
목차
I. 緖論 10
II. 材料 및 方法 14
1. 식물재료 14
2. 저항성 검증 14
3. 계통 간 acetolactate synthase(ALS) 활성 16
4. 생육 및 경합 특성 17
가. 번식체별 발아율 및 생육특성 17
나. 종간 및 종내 경합 특성 18
5. SU계 제초제 저항성 세섬매자기 관리기술 18
6. 통계 분석 19
III. 結果 및 考察 20
1. 저항성 검증 20
2. 계통 간 Acetolactate Synthase(ALS) 활성 24
3. 생육 및 경합 특성 25
4. SU계 제초제 저항성 세섬매자기 관리기술 30
IV. 結論 35
參考文獻 37
Table 1. Sulfonylurea herbicides doses used in the study 15
Table 2. History of herbicides used and their effect on Scirpus planiculmis at the study site 20
Table 3. Herbicides doses exhibited growth reduction of 50% (GR50) by fresh weight against Muan (S) and Seosan (R) biotypes of Scirpus planiculmis(이미지참조) 23
Table 4. The growth comparison of Scirpus planiculmis by infraspecific competition according to sulfonylurea-resistant Scirpus planiculmis density under constant the rice plants 29
Table 5. Response of Scirpus planiculmis plants, germinated from corm and seeds, to nonsulfonylurea herbicides applied after 10 days of transplantation 30
Table 6. Benzobicyclon containing herbicides efficiency on sulfonylurea-resistant Scirpus planiculmis 31
Table 7. Benzobicyclon SC and benzobicyclon containing herbicides efficiency on sulfonylurea-resistant Scirpus planiculmis in reclaimed paddy field 32
Table 8. Effect of application rate of glyphosate (41% aqueous suspension) on sulfonylurea-resistant Scirpus planiculmis 33
Fig. 1. Number of survivors of Muan accession(●) and Seosan accession(○) of Scirpus planiculmis as affected by different dose of sulfonylurea hervicides at 20 days after herbicide treatment. Herbicides were applied at 10 days after transplantation. 21
Fig. 2. Inhibition of ALS enzyrne extracted from resistant(○) and susceptible(●) accession of Scirpus planiculmis by pyrazosulfuron-ethyl at a range from 0.0001 to 10 μM. The vertical bars represent standard errors of the mena. The I50 valuses were the pyrazosulfuron-ethyl... 24
Fig. 3. The germination rate of seed and corm of Scirpus planiculmis at various temperatures. 26
Fig. 4. The plant height of Scirpus planiculmis germinated from corms and seeds under different temperature condition. 27
Fig. 5. The growth cornparison of Scirpus planiculmis by infraspecific competition according to sulfonylurea-resistant Scirpus planiculmis density. 28