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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Weed Science
Journal Basic Information
Journal DOI :
The Korean Society of Weed Science
Editor in Chief :
Volume & Issues
Volume 29, Issue 4 - Dec 2009
Volume 29, Issue 3 - Sep 2009
Volume 29, Issue 2 - Jun 2009
Volume 29, Issue 1 - Mar 2009
Selecting the target year
Development of Labor-saving Plant Growth Regulator, Prohexadione-calcium, for Growth Inhibition
Hwang, In-Cheon ; Lee, In-Jung ; Cho, Tae-kyoung ; Kim, Jung-Tae ; Yoon, Cheoul-Su ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 1~8
Development for fanner's labor-saving plant growth control in an effort to develop environment-friendly agriculture and labor-saving of agricultural practice. This paper summarizes the published literature and characteristic, biological test, toxicology etc.
Comparison of Growth and Development by Plant Resources and Temperature Conditions under Growth Chamber for Reduction of Soil Erosion in Highland
Kang, Chung-Kil ; Park, Tae-Sun ; Lee, Jung-Tae ; Kim, Doo-Ho ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 9~16
This experiment was conducted to investigate the comparison of growth and development by plant resources and temperature conditions under growth chamber for reduction of soil erosion in highland. Among the tested 4 plant resources, emergence was delayed at low temperature, followed by Secale cereale, Avena sativa cv. Youmai, A. sativa cv. Guyin #2, A. sativa cv. Guyin #1, in that order, but stimulated al high temperature. The higher the temperature, the higher the growth rate. The lower the temperature, the longer the days to growth requirement. A sativa cv. Guyin # 1, A. sativa cv. Guyin #2, A. sativa cv. Youmai reduced days to heading requirement at higher tem야rature, though S. cereale was delayed at higher temperature. Production of biomass was increased A. sativa cv. Guyin # 1, A. sativa cv. Guyin #2, A. sativa cv. Youmai, S. cereale in that order. It can be concluded that A. sativa cv. Guyin # 1, A. saliva cv. Guyin #2, A. sativa cv. Youmai were recommended for Summer cultivation while S. cereale was for Winter cultivation.
Effect of Agricultural By-Products to the Growth of Rice and Paddy Weeds in the Machine Transplanting Rice Paddy Field
Kim, Sun ; Kang, Jong-Gook ; Im, Il-Bin ; Lee, Sang-Bok ; Baek, Nam-Hyen ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 17~23
This experiment was conducted to evaluate the restriction effect of rice growth and rice growth by agricultural by- products for fertilizer, rice bran, barley and rice straw in the machine transplanting rice paddy field. The inhibition of rice to the different volume of rice bran was at the plot which rice bran 120 and 180kg
were treated at 3 days before transplanting and 1 day after transplanting, respectively, and it's symptom lasted for a few days. The concentration of dissolved oxygen by treatment of rice bran was less than 2mg
, these sign was continued by 21 days after transplanting. The weed inhibition by different application of agricultural by-products was most effective al plot treated systematically with rice bran and barley straws. The effect of weed inhibition by treatment methods of rice bran was the most effective at the plot which rice bran 120 and 180kg
were lreaκd al 3 days before transplanting and 1 day after transplanting, respectively. The period for weed inhibition by agricultural by-products was limited within 30 days after their treatment.
Genetic Characteristics of Progeny of the Hybrids Between a Glufosinate Resistant Transgenic Rice and Weedy Rice (Oryza sativa L.)
Ghimire, Sita-Ram ; Sohn, Eun-Young ; Shin, Dong-Hyun ; Lee, In-Jung ; Kim, Kil-Ung ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 24~31
Experiments were conducted for four consecutive years (2004~2007) in the greenhousε of Experiment and Practice Station, Kyungpook National University to determine genetic characteristics of the hybrids in the succeeding generations.
hybrids were obtained by crossing weedy rice with the glufosinate-ammonium resistant lines harboring ABC-promoter and ubiquitin promoter transgenic lines, respectively.
hybrid obtained from crossing between weedy rice and ABC-promoter transgenic rice found to have greater chances of genetic integration because of its higher rate of spikelet fertility. The response to the recommended of glufosinate-ammonium at 3O DAS (days after seeding) in
followed Mendelian pattern of segregation. This indicated that the herbicide resistant trail acquired from transgenic lines introgressed in the progeny generations. The days to heading and maturity in
was delayed by as much as 3O days than the both parents. However, heading/flowering of
was found highly variable, with approximately one fourth of the tillers maturing earlier like that of weedy rice parent. In this study, segregation to glufosinate response, heading dates, and shattering of seeds in
were acquired from weedy parent.
Weed Survey at Environment-friendly Agriculture Farmlands of Haean-Myon, Yanggu
Choi, Hae-Jin ; Jo, Nam-Gyu ; Yoo, Ki-Oug ; Choi, Bong-Su ; Kim, Song-Mun ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 32~38
The distribution of weed species at environment-friendly agriculture farmlands of Haean-myon in Yanggu, Korea, was surveyed to provide information of effective weed management. All weeds in 1
quardrats with two adjacent vegetable rows at ten sites were classified, their numbers were counted, ant their weights were measured. In the surveyed sites, 41 weed species of 16 families were found: 21 of the species were summer annuals, 8 were winter annuals, and the rest were perennials. Five dominant weeds were Digitaria sanguinalis, Conyza canadensis var. canadensis, Cyperus difformis, Cyperus orthostachyus and Cyperus amuricus. Weeds such as Artemisia montana, Elsholtzia splendens, Aster scaber and Persicaria nepalensis that are typically found in mountenous areas and such as Conyza canadensis var. canadensis, Senecio vulgaris, Aster pilosus and Bidens frondosa were also found. The distribution of dominant weeds at environmentally-friend agriculture farms of Haean-myon in Yanggu is different from those of other uplands in Korea. Such a difference could be due to geographical and agricultural characteristics.
Effect of Rapeseed (Brassica napus) Incorporated as Green Manure on Weed Growth in Rice Paddy: A Pot Experiment
Choi, Bong-Su ; Hong, Ki-Chan ; Nam, Jae-Jak ; Lim, Jung-Eun ; Lee, Hyeon-Yong ; Choi, Yong-Beom ; Joo, Jin-Ho ; Yang, Jae-E ; Ok, Yong-Sik ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 39~45
In recent, rapeseed (Brassixa napus) has been cultivated as a biomass resource for biodiesel production in the southern part of Korea. Objective of this research was to evaluate the potential of rapeseed residue on suppression of weed growth in rice-rapeseed double cropping system. Rates of lettuce(Lactuca sativa L.) seed germination were reduced as the incorporation rate of aqueous pod extracts increased. The similar patterns were observed by the treatment of aqueous pod extracts. Radicle length of lettuce seedling was significantly reduced as aqueous extracts concentration increased, However, hypocotyl length of lettuce seedling showed opposite trend. Rapeseed residue in corporation as green manure inhibited the occurrence of weed species more than 50% compared to the conventional rice cropping system in the pot experiment. Subsequently, rapeseed residue inhibited weed density and biomass by 88% and 85%, respectively, compared to the conventional cultivation. These findings suggested that the utilization of rapeseed residue as green manure can be an alternative practice to control weeds in rice-rapeseed double cropping system.
Possibility of Gene Flow and Unintended Escape from Leaf-folder (Cnaphalocrocis medinalis) Resistant Rice
Lee, In-Young ; Park, Jae-Eup ; Moon, Beong-Chul ; Suh, Seok-Cheol ; Shin, Kong-Sik ; Woo, Mi-Ok ; Kweon, Soon-Jong ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 46~55
This study was carried out to investigate the possibility of weediness and gene flow from leaf-folder(Cnaphalocrocis medinalis) resistant rice ('06 : Event C7-1-9-1. '07 : C7-1-9-1-1, '08 : C7-1-9-1-1-1). The leaf-folder resistant rice was germinated 100% at 1 month after bury into soil and was showed 0% after 3 month. The shattered rice seeds during harvest were germinated 27% in Chuchungbyeo, 2.7% in GM rice and 3.3% in Nakdongbyeo under the field condition. However, germination pattern was different according to overwinter condition. When GM rice was unintentional escape in outdoor of the leaf-folder resistant rice can be controlled with glyphosate and paraquat of non-selective herbicides. In order to investigate gene flow from the leaf-folder resistant rice, Nakdongbyeo and weedy rice were planted with difference distance. Degree of survival was higher at near planting Nakdongbyeo from the leaf-folder resistant rice. The detection of gene flow from the leaf-folder resistant rice was done using a lateral flow strip test kit. Gene of the leaf-folder resistant rice can be detected by lateral flow strip test. But showed no survival plant from weedy rice because of differential stage of heading. Weed flora in the culture field of leaf-folder resistant rice were very similar with culture field of non GM rice.
Effect of Short Interval Application of Rice Pretransplanting Herbicide and Box Raising Rice Seedling Treatment Pesticides
Park, Jae-Eup ; Lee, In-Yong ; Soo, Jae-Sung ; Baek, Sung-Yeol ; Moon, Byung-Chul ; Oh, Se-Moon ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 56~61
The result of short interval application between rice pre-transplanting herbicide and other box raising rice seedling treatment pesticides, rice growth showed differential responses when treated with short interval of box raising rice seedling treatment pesticides after treatment of rice pre-transplanting herbicide. The inhibition of rice growth were higher when transplanted at 3 to 7 day after treatment than transplanted direct after treatment of box raising rice seedling treatment pesticides. The phytotoxicity of pre-transplanting herbicide, oxadiazon EC were higher than butachlor EW and were higher when treated with treated with tiadinil clothianidin GR of box raising rice seedling treatment pesticides.
Distribution, Ecological Habits and Weed Suppressive Ability of Winter Annual Belonged to Genus Vicia in Korea
Cho, Jung-Lai ; Kim, Chang-Seok ; Kang, Chung-Kil ; Moon, Byeong-Chul ; Park, Jae-Eup ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 62~67
This experiment was carried out to evaluate the distribution, ecological habits and weed suppressive ability of winter annuls, genus Vicia in Korea. Among the tested four Vicia species, the most distribution was found in V. angustifolia, followed by V. tetrasperma. V. hirsuta and V. villosa, in that order. V. tetrasperma and V. hirsuta emerged on the late July, over-wintered at early growth stage, showed rapid growth on April and May, bloomed on May, at last end in summer depression on June. When the soil was covered with V. tetrasperma in the red pepper field, weeding effect was by 88%, and yield was also similar to polyethylene mulching which is conventional method.
Sod Culture of Hairy Vetch (Vicia villosa Roth) for Weed Control and Soil Improvement in the Orchard
Lee, Chul-Won ; Yoo, Young-Chae ; Song, Beom-Heon ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 68~74
Hairy vetch(Vicia villosa) as a legume crop was seeded 30kg, 50kg, 70kg, 90kg per ha at early September 2003 in pear orchard. The experiments of common hairy vetch were for examine the sod culture and manure effect in orchard. After wintering in early march hairy vetch with high cold tolerance showed rapid regrowth compared to other plants and the dry weight was maximized at flowering period on late May to early June. Weed control was effective highly due to hairy vetch residues after withering in summer season. The practical seeding rate per ha was 70kg for covering soil and weed control, and the sod culture by hairy vetch when is seeded one time at mid summer was maintained for 3 to 4 years. N content of aerial part of hairy vetch reached the maximum at flowering stage in late May to early June. After 4 years of sod culture of hairy vetch in orchard soil pH was changed from 5.4 in no-treatment to 5.9 in 70kg plot and CEC, organic matter content and mineral nutrition were increased more than in no-treatment plot significantly.
Herbicidal Efficacy of Water Chestnut (Eleocharis kuroguwai Ohwi) as Influenced by Different Environmental Conditions
Moon, Byeong-Chul ; Park, Jae-Up ; Lee, In-Yong ; Oh, Se-Mun ; Jin, Yong-Duk ; Kwon, Hye-Yong ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 75~82
The experiments were conducted to investigate an effects of herbicidal treatment methods, application time on water chestnut's (Eleocharis kuroguwai Ohwi) control efficacy under various environmental conditions. Control of sulfonylurea herbicides to buried depths of water chestnut's tuber was investigated as to be effective in the order of azimsulfuron/cyhalofop-butyl/molinate GR, imazosulfuron/molinate GR and molinate/pyrazosulfuron-ethyl GR. Especially, azimsulfuron/eyhalofop-butyl/molinate GR showed stable control efficacy irrespective of buried depths and also until late growth stage but most water chestnuts which molinate/pyrazosulfuron-ethyl GR was treated with regenerated again at late growth stage. The longer flooded periods after treating with herbicides, the higher herbicidal control efficacy and the lower its regeneration rate. Water chestnut's tuber formation is suppressed by 65 to 73% in flooding for 3 days after treating Azimsulfuron/eyhalofop-butyl/molinate GR and imazosulfuron/molinate GR compared with 32 to 40% in 1 day flooding. However, treatment of molinate/pyrazosulfuron-ethyl GR and benfuresate/bensulfuron-methyl GR have on an effect on formation of water chestnut's tuber in accordance with difference of flooding dates after treating herbicides.
The Effect of Light Regimes on Pokeberry (Phytolacca americana L.) Growth
Choi, Kee-Ryong ; Park, Bum-Jin ; Park, Yong-Mok ;
Korean Journal of Weed Science, volume 29, issue 1, 2009, Pages 83~88
The growth of pokeberry (Phytolacca americana L.), grown at three different light intensities, was analyzed to evaluate their growth responses to light regime. Relative growth rate (RGR) was remarkably reduced in plants grown at relative light intensity (RLI) of 8%, compared with those grown at 33% or 100% RLI. This was due to the difference in net assimilation rate (NAR) between plants grown at different light regimes. However, changing patterns of NAR were similar in all plants irrespective of light regimes, showing increase until 25 days from the start of experiment and decrease thereafter. Root mass in plants grown at 8% RLI was hardly increased, while those in plants grown at 33% or 100% RLI increased remarkably. This resulted in the difference in total nitrogen contents between them. Plants grown at 33% RLI or 100% RLI indicated different allocation patterns between the first and the second parts of experiment, indicating alteration in the rate of allocation into leaf and root. On the other hand, plants grown at 8% RLI showed higher dry matter allocation into leaf than stem or root. These results suggest that pokeberry under lower light conditions than 8% RLI could not grow well and in turn would hardly extend their distribution area.