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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Weed & Turfgrass Science
Journal Basic Information
Journal DOI :
The Korean Society of Weed Science
Editor in Chief :
Volume & Issues
Volume 3, Issue 4 - Dec 2014
Volume 3, Issue 3 - Sep 2014
Volume 3, Issue 2 - Jun 2014
Volume 3, Issue 1 - Mar 2014
Selecting the target year
Current Status and Perspective of Weed Science in Asian Pacific Region
Lee, In-Yong ; Lee, Jeongran ; Kim, Do Soon ; Park, Kee Woong ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 1~5
DOI : 10.5660/WTS.2014.3.1.1
This paper reviews current status of weed science in Asian-Pacific regional agricultural systems based on the 24th Asian-Pacific Weed Science Society Conference. About 190 researchers from 16 countries including Korea participated in the Conference and presented 160 papers in 11 research areas. Major research topics were invasive weeds and their ecology, allelopathy, weed management in paddy field, weed management in field crops, and herbicide resistance. Because rice is a major food crop in Asian countries, weed control and herbicide resistance management in paddy field were a main object of research. Weed control in maize, soybean and wheat has also been studied continuously. To prevent the increase of problematic weeds and to overcome food crisis, the importance of weed-related researches has been raised. Therefore it is expected that various weed management systems and control of herbicide resistant weeds should be studied continuously in the future.
A Survey of Weeds Occurrence on Paddy Fields in Gyeongbuk Province in Korea
Kim, Sang Kuk ; Kim, Hak Yoon ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 6~12
DOI : 10.5660/WTS.2014.3.1.6
The survey of weed occurrence was conducted to identify problem weed species in the paddy field. The 320 sites of the 13 regions in Gyeongbuk Province were investigated from June to July, 2013. In the whole region, 51 weed species were identified including 34 annuals and 17 perennials. The highest importance value of annual weed and perennial was dominant 88.4 and 48.7%, in Gumi region, respectively. The most dominant weed species in paddy fields of Gyeongbuk Province were Monochoria vaginalis var. plantaginea (10.80%), followed by Lemna paucicostata (10.74%), Bidens tripartite (8.77%), Echinochloa oryzoides (7.17%), and Scirpus juncoides (6.20%). The similarity of paddy weeds in 13 regions observed through TWINSPAN analysis was distinguished by Ludwigia prostrata, Scirpus juncoides, Lindernia dubia, Polygonum aviculare, and Alopecurus aequalis var. amurensis. The weed species, Ludwigia prostrata, was divided into the four regions, Gyeongju, Gumi(direct seeding cultivation), Youngcheon and Euiseong and ten regions, Gumi, Bonghwa, Sanju, Goryung, Youngdeog, Pohang, Sanju, Andong, Yecheon, and Cheongdo.
Eco-Friendly Control of Water Foxtail (Alopecurus aequalis) on Cultivation Fields of Forage Barley Sowed before Rice Harvest
Im, Il-Bin ; Im, Bo-Hyeok ; Park, Jea-Hyeon ; Jang, Jun-Hyeong ; Oh, Young-Jin ; Jang, Un-Woo ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 13~18
DOI : 10.5660/WTS.2014.3.1.13
This study was conducted to develop an eco-friendly control method for water foxtail in the field sowing barley seeds before rice harvesting. When sea water was applied pre-emergent, 1 and 2 leaves, little injury was observed on barley. Percent of water foxtail control with sea water (100%) was more than 50% at 1 leaf application timing. When sodium chloride was applied 400, 800 and
, little injury was observed on barley. Percent of water foxtail control with sodium chloride was 36-44% at 30 days after sowing. When ferrous sulfate was applied at 400, 800 and
, emergent injury was observed 35-50% on barley. Percent of water foxtail control with ferrous sulfate was 48-79% at 30 days after sowing. When barley was sowed at 200, 300 and
, seeding rate standing plants have many of the more crops, water foxtail occurrence was low. And, Forage yield of 300 kg ha-1 seeding in the highest. Based on the results, it is possible to control water foxtail in the field sowing barley seeds before rice harvesting more than 50%.
Effect of Polymer, Calcium, Perlite and Chitosan in Organic Amendment on Growth in Kentucky Bluegrass
Kim, Kyoung-Nam ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 19~28
DOI : 10.5660/WTS.2014.3.1.19
Research was initiated in greenhouse to investigate effects of polymer, calcium, perlite and chitosan on the growth of Kentucky bluegrass (KB). A total of 24 treatment combinations were used in the study. Treatments were made of water-swelling polymer (WSP), calcium, perlite, and chitosan in soil organic amendment (SOA). Significant differences were observed in germination rate, turfgrass coverage, turfgrass density and top growth among treatments. Germination rate, density and plant height varied with time after seeding. A proper mix of WSP is considered to be lower than 3% for turfgrass coverage and density. Regarding survival capability and top growth, however, it was good under 6%. Overall KB growth was more influenced by calcium and perlite than chitosan. Calcium and perlite were the most effective elements for early survival capacity and turfgrass density, respectively. But no effect was found by chitosan. Top growth increased with three elements, being perlite > calcium > chitosan. The chitosan was effective in early germination, but there was no effect on top growth until 3 weeks, when compared with others. A further study is needed for investigating the effect of these materials on the growth characteristics in mixtures of sand and SOA before a field application.
Comparison of Germination Characteristics and Daily Seed Germinating Pattern in 15 New Cultivars of Kentucky Bluegrass Grown under Alternating Temperature Conditions
Kim, Kyoung-Nam ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 29~40
DOI : 10.5660/WTS.2014.3.1.29
Research was initiated to investigate early establishment characteristics and germination pattern of Kentucky bluegrass (KB, Poa pratensis L.). Fifteen cultivars were evaluated under alternative conditions (8 hours light at
and 16 hours dark at
). Significant differences were observed in germination characteristics and germination pattern among KB cultivars. A final germination percentage differed in cultivars, being 75.25 to 89.50%. The first germination was initiated between 6 and 9 DAS (days after seeding). As for the first germination percentage, `Brilliant` and `Midnight II` produced 14.50% and 23.00%, respectively, while the others were most below 5%. Days to 75% germination were between 15.08 and 28.80 DAS. `Excursion`, `Midnight II`, `Odyssey`, `Midnight` and `Courtyard` were fastest. The slowest cultivar was `Voyager II`, being over 28 DAS, which were 13 to 14 days slower than the fastest ones. Considering the first germination percentage, days to the first germination, days to 75% germination, and germination pattern, `Midnight II`, `Excursion` and `Midnight` were regarded as excellent cultivars under alternative conditions. From this study, information on differences in germination characteristics and patterns would be practically useful for a golf course construction when established with KB.
Increase of Growth on Cool Season Turfgrass by Foliar Application of Preparations of Turfgrass Fertilizer during Fall Season
Koo, Jun Hwak ; Heo, Hyug Jae ; Kim, Yang Sun ; Yun, Jeong Ho ; Chang, Seog Won ; Lee, Seong Jun ; Chang, Taehyun ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 41~49
DOI : 10.5660/WTS.2014.3.1.41
Four preparations of liquid turfgrass fertilizers were tested cool season turfgrasses during fall season. The preparations of PS-A, PS-B, PH-C and PH-D for commercial products were contained with essential nutrient elements, seaweed extract, amino acids, and humus substance. Growth and quality of creeping bentgrass (Agrostis palustris Huds cv. Penn-A1) and Kentucky bluegrass (Poa pratensis L.) mixture (Midnight 33%, Moonlight 33%, Prosperity 33%) were evaluated by normalized difference vegetation index (NDVI), root length and fresh weight, shoot density, turf color, and chlorophyll content. Three foliar sprays of 4 preparations with an interval of 7 days were made in the fall of 2013 in the sod production field at Hapchun, Korea. No significant difference among 3 preparations was found in NDVI of creeping bentgrass. However, PS-A was significantly increased NDVI of Kentucky bluegrass. Two to three applications of PS-A significantly increased chlorophyll content and turf color. Three foliar sprays of PS-A and PS-B were significantly increased the shoot density of Kentucky bluegrass on 20 days after final application. These results may indicate that the use of some preparation is beneficial in producing higher quality turfgrass sod with better color and chlorophyll content during fall season.
Habitat and Phytosociological Characters of Ceratopteris thalictroides, Endangered Plant Species on Paddy Field, in Nakdong River
Choi, Byoung-Ki ; Lee, Chang-Woo ; Huh, Man-Kyu ;
Weed & Turfgrass Science, volume 3, issue 1, 2014, Pages 50~55
DOI : 10.5660/WTS.2014.3.1.50
This study is aimed at classifying the syntaxa of Ceratopteris thalictroides dominant community on the Nakdong River, and to collect basic data for research of habitat. The communities were carried out by using the Z.-M. School`s method and numerical classification technique. The result of syntaxa was classified three communities such as Persicaria japonica-Ceratopteris thalictroides community, Lindernia procumbens-Ceratropteris thalictroides community, and Limnophila indica-Ceratopteris thalictroides community. The ordination analysis displayed the vegetation types with respect to complex environmental gradients. After ordination and clustering analysis, the effective humidity, soil stability, trampling effects, anthropogenic effects and flooding frequency were identified as the important factors deciding the vegetation pattern. It was pointed out to establish a long-term ecological site for protecting such vulnerable vegetation against overexploitation and global climate change.