These studies were conducted to evaluate the possibility of using them as indicator species for biodiversity conservation from and the response of some aquatic plants to herbicides which have been used widely in rice-cropping areas in Korea. The aquatic plants seen in paddy farming system of Kangwon province where butachlor has been used mainly for many year, were much more varied than those surveyed in paddy farming system of Chonnam province where sulfonylurea herbicides (SUs) have been used continuously for many year. The effects of bensulfuron- methyl (BSM) and pyrazosulfuron-ethyl (PSE) of sulfonylurea herbicides (SUs) to Monochoria korsakowii (M. korsakowii), Marsilea quadrifolia (M. quadrifolia), and Salvinia natans (S. natans) which are aquatic species listed as threatened species by the Environment Agency of Japan, much more effective than those to butachlor and molinate. The GR50 values of BSM and PSE to aquatic plants tested were relatively very low compared with those of butachlor and molinate. The concentrations of SUs which may affect the growth aquatic plants detected in water collected from irrigation ditches of rice fields treated with SU-included herbicides. Acetolactate synthase (ALS) activity isolated from M. quadrifolia was seriously inhibited even at very low concentration of BSM and PSE.
These studies were conducted to evaluate the possibility of using them as indicator species for biodiversity conservation from and the response of some aquatic plants to herbicides which have been used widely in rice-cropping areas in Korea. The aquatic plants seen in paddy farming system of Kangwon province where butachlor has been used mainly for many year, were much more varied than those surveyed in paddy farming system of Chonnam province where sulfonylurea herbicides (SUs) have been used continuously for many year. The effects of bensulfuron- methyl (BSM) and pyrazosulfuron-ethyl (PSE) of sulfonylurea herbicides (SUs) to Monochoria korsakowii (M. korsakowii), Marsilea quadrifolia (M. quadrifolia), and Salvinia natans (S. natans) which are aquatic species listed as threatened species by the Environment Agency of Japan, much more effective than those to butachlor and molinate. The GR50 values of BSM and PSE to aquatic plants tested were relatively very low compared with those of butachlor and molinate. The concentrations of SUs which may affect the growth aquatic plants detected in water collected from irrigation ditches of rice fields treated with SU-included herbicides. Acetolactate synthase (ALS) activity isolated from M. quadrifolia was seriously inhibited even at very low concentration of BSM and PSE.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.