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http://dx.doi.org/10.5660/WTS.2013.2.3.242

Herbicidal Activities of Trichosanthes kirilowii Maxim Extracts  

Yun, Young Beom (Department of Development in Oriental Medicine Resources, College of Life Science and Natural Resources, Sunchon National University)
Byeon, Ri Na (Department of Development in Oriental Medicine Resources, College of Life Science and Natural Resources, Sunchon National University)
Jang, Se Ji (Department of Development in Oriental Medicine Resources, College of Life Science and Natural Resources, Sunchon National University)
Hyun, Kyu Hwan (Department of Development in Oriental Medicine Resources, College of Life Science and Natural Resources, Sunchon National University)
Shin, Dong Young (Department of Development in Oriental Medicine Resources, College of Life Science and Natural Resources, Sunchon National University)
Kim, Sang Su (Department of Plant Medicine, College of Life Science and Natural Resources, Sunchon National University)
Kim, Do Ik (Jeonnam Agricultural Research and Extension Services)
Kwon, Oh Do (Jeonnam Agricultural Research and Extension Services)
Kuk, Yong In (Department of Development in Oriental Medicine Resources, College of Life Science and Natural Resources, Sunchon National University)
Publication Information
Weed & Turfgrass Science / v.2, no.3, 2013 , pp. 242-247 More about this Journal
Abstract
Currently, methods for controlling weeds in organically produced crops have not been as effective as conventional methods. This research was carried out to determine the herbicidal effects of leaf, stem, fruit, root extracts of Trichosanthes kirilowii. The extraction methods used were water, boiling water and ethanol. The characteristics of potential herbicidal components among extraction methods were investigated by using the following solvent fractions: hexane, chloroform, ethyl acetate, butanol, and water. Generally, water extracts provided the best on inhibition of germination rate, plant height, and root length in cucumber and barley. Specifically, extractions made from fruit parts of T. kirilowii provided the greatest inhibition effect on plant growth in cucumber and barely. Inhibition of germination rate, plant height, and root length in cucumber and barley in solvent fractions was the best in water fractions, but there were no significant differences among the other fractions. Digitaria siliaris and Solanum nigrum were controlled 80-100% by 5% extractions of water fraction. However, there were no herbicidal effects from foliar treatment in cucumber, barley, black nightshade, and henry crabgrass by 5% extractions of the water fraction. These results show that extractions of T. kirilowii can be used for controlling some weeds in organically produced crops.
Keywords
Herbicidal activity; Plant extract; Trichosanthes kirilowii;
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