2006•Weed & Turfgrass ScienceRequires access
Weed Flora of Pasture in Korea
Jae‐Eup Park, Tae-Seon Park, Seok-Bo Song, Il-Bin Im, Jae-Bok Hwang, In-Yong Lee, Chang‐Seok Kim, O Se-Mun, Jeong-Rae Jo, Jong-Guk Gang, Seon Kim, Byeong-Cheol Mun, O-Seok Gwon, Gwang-Ho Kim, Jong-Hyeon Park, Nam Il Park, Seung-Hwan Ji, Dae-Seong Gang, Gyeong-Im Jeong
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Abstract
The surveys of weed population on pasture from May to September were conducted to investigate information on weed flora and their ecology in 2004. Weeds of pasture were composed of 333 species belonging to 59 families. These weeds were composed of summer annual weeds of 108 species (22.3%), winter annual weeds of 66 species (19.8%) and perennial weeds of 159 species (47.9%). Among 59 families, the Asteraceae was the biggest family, followed by Poaceae, Polygonaceae, Rosaceae and Cyperaceae, respectively. Dominant weed species were Artemisia princeps, Rumex acetosella, Trifolium repens, Erigeron annuus and Alopecurus aequalis var. amurensis on May, and Artemisia princeps, Taraxacum mongolicum, Digitaria ciliaris, Echinochloa utilis and Setaria viridis etc. on September. Exotic weeds on pastures were Trifolium repens, Rumex acetosella, Erigeron annuus, Veronica arvensis etc. Compared with the survey done in 15 years ago(1990), Conyza canadensis var. canadensis, Potentilla fragarioides, Sanguisorba officinalis and Viola mandshruica etc. were decreased in number, but Artemisia princeps, Rumex acetosella, Trifolium repens, Digitaria ciliaris, Setaria viridis and Echinochloa utilis etc. were more increased.