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자료유형
학술저널
저자정보
Thi Hien Le (Chungnam National University) Sug-Won Roh (Rural Development Administration Food Crop Industry Technology Service Division) Mirjalol Umurzokov (Chungnam National University) Aung Bo Bo (Chungnam National University) Weiqiang Jia (Chungnam National University) Kwang Min Cho (Daeseung Bio Farm Research Center) Kee Woong Park (Chungnam National University)
저널정보
한국잡초학회·한국잔디학회 Weed&Turfgrass Science Weed&Turfgrass Science Vol.10 No.2
발행연도
2021.6
수록면
185 - 192 (8page)

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Exotic weeds are considered as one of the major threats for agro-ecosystem and global food security. Since, Rumex obtusifolius is one of the dominant exotic weeds in Korean landscape, turfgrass, or river banks, there is an urgency for its efficient management to protect the Korean agro-ecosystem. This study was conducted to investigate the germination characteristics under various environmental conditions such as seed dormancy, temperature, salt stress as well as effect of soil depths on seed emergence. R. obtusifolius seeds germinated 100% until 30 days after harvesting (DAH), after that the seed germination rate started to decrease until 270 DAH. The germination rate recovered from 300 DAH and finally reached 98.3% 360 DAH. Optimum temperature for R. obtusifolius seed germination was 25/15℃ to 30/20℃ (day/night). NaCl greatly affected the germination of R. obtusifolius seeds. Less than 50% of seeds germinated at 20 mM of NaCl and ceased at 320 mM. R. obtusifolius seedling emergence was strongly inhibited by burial depth. The germination declined with increasing the soil depth and stopped where the burial depth exceeded 3 cm. These results could be useful to develop integrated exotic weed management in the R. obtusifolius infested area in Korea.

목차

Abstract
Dormancy of Rumex obtusifolius seeds after harvest
Germination by temperature
Salt stress
Emergence by burial depth
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