Change of Weed Species in Burcucumber (Sicyos angulatus L.) Community and Domestic Distribution Aspect
2008
Moon, B.C. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea), E-mail: [email protected] | Oh. S.M. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Lee, I.Y. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Kim, C.S. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Cho, J.R. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea) | Kim, S.C. (National Institute of Agricultural Science and Technology, RDA, Suwon, Republic of Korea)
This experiment was conducted to elucidate an effect of dominance of burcucumber (Sicyos angulatus L.) in non-cultivated area in the change of weed lora and investigate its national distribution. In the region which burcucumber was dominant (RBD), the weed species showing dominance of over 10% in the survey of early June and late August was two species each. Whereas, weed species with dominance of over 10% in the region which burcucumber wasn't distributed (RBND) was one species in the survey of early June and wasn't found in that of late August. The total sum of weed species with dominance of over 5% showed higher tendency as 56.4% and 51% in the survey of early June and late August in RBD compared with 35.3% and 22.1% in RBND, respectively. The number of weed distributed in RBD was smaller as 34 and 33 species in the investigation if early June and late August compared with 51 and 56 species in RBND, respectively. Domestic distribution of burcucumber showed higher occurrence of 55.6% among total sites in Gyeonggi province and Gangwon province and the other provinces were investigated as the order of Gyeongsangbuk province, Jeollabuk province, and chungcheongbuk province. Fifty two percent among total sites which burcucumber occurred was distributed largely along riverside and the rest habitats showed occurrence rate of 17%, 13%, 9%, and 9% in small mountain, roadside, open area, and cultivated area, respectively.
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