Korean Journal of Weed Science (한국잡초학회지)
- Volume 6 Issue 2
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- Pages.174-190
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- 1986
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- 0253-7648(pISSN)
Tissue Culture Method as a Possible Tool to Study Herbicidal Behaviour and Herbicide Tolerance Screening
조직배양(組織培養) 방법(方法)을 이용(利用)한 제초제(除草劑) 작용성(作用性) 및 제초제(除草劑) 저항성(抵抗性) 검정방법(檢定方法) 연구(硏究)
Abstract
A series of laboratory and greenhouse experiments were conducted to find out the possibility of tissue culture and cell culture methods as a tool to study herbicidal behaviour and herbicide tolerance screening from 1985 to 1986 at the Yeongnam Crop Experiment Station. For dehulled-rice culture, pure agar medium was the most appropriate in rice growth campared to other media used for plant tissue culture method. All the media but the pure agar medium resulted in growth retardance by approximately 50% and this effect was more pronounced to root growth than shoot growth. Herbicidal phytotoxicity was enhanced under light condition for butachlor, 2.4-D, and propanil while this effect was reversed for DPX F-5384 and CGA 142464, respectively. And also, herbicides of butachlor, chlornitrofen, oxadiazon, and BAS-514 resulted in more phytotoxic effect when shoot and root of rice were exposed to herbicide than root exposure only while other used herbicides exhibited no significant difference between two exposure regimes. Similar response was obtained from Echinochloa crusgalli even though the degree of growth retardance was much greater. Particularly, butachlor, 2.4-D, chlornitrofen, oxadiaxon, pyrazolate and BAS-514 totally inhibited chlorophyll biosynthesis even at the single contact of root. Apparent cultivar differences to herbicide were observed at the young seedling culture method and dehulled rice cultivars were more tolerant in DPX F-5384, NC-311, pyrazolate and pyrazoxyfen, respectively. For derant than other types or rice cultivar in butachlor, pretilachlor, perfluidone and oxadiazon while Tongil-type rice cultivars were more tolerant in DPXF-5384, NC-311, Pyrazolate and Pyrazoxyfen, respectively. For dehulled rice culture, on the other hand, Japonica-type rice cultivar was less tolerant to herbicides of butachlor, propanil, chlornitrofen and oxadiazon that was reversed trend to young seedling culture test. Cultivar differences were also exhibited within same cultivar type. In general, relatively higher tolerant cultivars were Milyang 42, Cheongcheongbyeo, Samgangbyeo, Chilseoungbyeo for Tongil-type, Somjinbyeo for Japonica-type and IR50 for Indica-type, respectively. The response of callus growth showed similar to dehulled rice culture method in all herbicides regardless of property variables. However, concentration response was much sensitive in callus response. The concentration ranges of
조직배양(組織培養) 방법(方法)을 이용(利用)하여 제초제(除草劑)의 작용성(作用性) 및 제초제저항성(除草劑抵抗性) 검정방법(檢定方法)의 개선(改善)의 가능성(可能性)을 검토(檢討)하기 위해 1985년(年)~1986년(年)까지 2개년(個年)에 걸쳐 영남작물시험장(嶺南作物試驗場) 온실(溫室) 및 조직배양실험실(組織培養實驗室)에서 일련(一連)의 시험(試驗)을 진행(進行)하였던 결과를 요약(要約)하면 다음과 같다. 1) 제초제(除草劑) 작용성(作用成)을 연구(硏究)하는 데 사용(使用)되는 배지조건(培地條件)으로서는 기존의 MS,
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