Journal- Faculty of Agriculture Kyushu University Impact Factor & Information

Publisher: Kyūshū Daigaku. Nōgakubu

Current impact factor: 0.26

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 0.255
2013 Impact Factor 0.218
2012 Impact Factor 0.212
2011 Impact Factor 0.272
2010 Impact Factor 0.24
2009 Impact Factor 0.352
2008 Impact Factor 0.192
2007 Impact Factor 0.239
2006 Impact Factor 0.12
2005 Impact Factor 0.447
2004 Impact Factor 0.261
2003 Impact Factor 0.273
2002 Impact Factor 0.188
2001 Impact Factor 0.159
2000 Impact Factor 0.173
1999 Impact Factor 0.471
1998 Impact Factor 0.366
1997 Impact Factor 0.076
1996 Impact Factor 0.129
1995 Impact Factor 0.117
1994 Impact Factor 0.075
1993 Impact Factor 0.207
1992 Impact Factor 0.291

Impact factor over time

Impact factor

Additional details

5-year impact 0.25
Cited half-life 8.10
Immediacy index 0.07
Eigenfactor 0.00
Article influence 0.05
Other titles Journal of the Faculty of Agriculture, Kyushu University, Kyūshū Daigaku Nōgakubu kiyō
ISSN 0023-6152
OCLC 9802493
Document type Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: This study was performed to evaluate the suitability and burning characteristics of thermally modified wood for use as auto camping charcoal. Four aspects of the burning were measured using a cone calorimeter: ignition time, total heat released, heat release rate, and flame out time. In addition, elemental analysis was carried out using an elemental analyzer. Thermally modified wood has short ignition and flame out times because of its low Oxygen/Carbon rate. The total heat released and the heat release rate of thermally modified wood is higher than that of other wood due to its low oxygen and nitrogen rate and high HHV (Higher Heating Values). With a shorter flame out time, carbonization takes less time, and the maintenance time is longer. These characteristics of thermally modified wood make it favorable for use as auto camping charcoal.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):197-201.
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    ABSTRACT: With the delay of harvest stage, the carbohydrate content of flower petals and the diameter of flower buds increased, but the vase life was shortened. Effects of abscisic acid (ABA) and sucrose on preservation of cut lilies were related to the harvest stage. Due to the lower level of soluble sugars and other energy source in early harvested cut lilies, the sucrose pretreatment turned to be particularly effective for extending the vase life and increasing the flower fresh weight and bud diameter. For the cut flowers harvested at middle stage, pretreatment with sucrose or ABA separately enhanced the preservation effect, which was not observed when pretreated with the combination of sucrose and ABA. The preservation effect of the harvested flowers at the late development stage was increased by the ABA pretreatments including ABA alone or ABA and sucrose (ABA+Suc). ABA improved sucrose uptake from the pretreatment solution and increased soluble sugar contents in cut flower petals. Combined with sucrose pretreatment, addition of ABA alleviated leaf chlorosis symptom of cut flowers harvested in early period.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):81-86.
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    ABSTRACT: Although it is often considered as a senescence phytohormone, abscisic acid (ABA) at low concentration together with sucrose as pulsing solution displayed preservative effect on cut lily flowers. In order to further clarify the preservation mechanism of ABA, the effects of ABA pretreatment on physiological index and ethylene release were investigated. The addition of 2 mg.L-1 ABA to sucrose increased proline content in petals. This result suggested that ABA application resulted in water stress of the cut flowers to some extent. However the pretreatment of the cut lilies with ABA at 2 mg.L-1 delayed the degradation of soluble proteins, and promoted the activity of superoxide dismutase (SOD) enzyme, which decreased the damage to cells induced by reactive oxygen species (ROS). It was also found that the pretreatment with 2 mg.L-1 ABA inhibited ethylene release.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):87-92.
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    ABSTRACT: A mathematical model for tractor dynamics was expanded by considering the rotatable tractor front end. The fundamental shortcoming of the simplified model was revealed by the loss of contact of the tire with a rigid horizontal surface in an obstacle passing case. Further shortcom-ings of the simplified model arise from aspects of the motion and vibration characteristics. The improved model provides a better and more realistic representation of the tire ground contact condition and is applicable to tractors on lateral slopes. The independent roll motions of the two main tractor parts (the front end and main body) significantly reduce the motions of the tractor and thus increase its stability. Furthermore, the effects of the forward tractor speed and obstacle height were studied for a tractor on a 10 degrees lateral slope. By analyzing the motion amplitude and tire ground contact condition, the tractor speed and obstacle height parameters associated with danger and risk were evaluated. The results suggest the greater capability of the improved model to predict tractor dynamic response in Phase I overturn.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):219-224.
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    ABSTRACT: This study compared profitability between the farmers participating in Sangthong Organic Farmers Association (SOFA) and the inorganic farmers in Sangthong District, Vientiane Capital, Laos, and estimated the factors influencing farmers to participate in the SOFA. The data collection was conducted with random sampling procedure to 110 organic farmers and 110 inorganic farmers in 10 target villages. Comparative analysis on revenue structure was conducted, to investigate whether organic farmers could gain more profit from rice production than inorganic farmers. Binary logistic regression model was employed to identify the factors influencing farmers' participation in the SOFA. The results of revenue structure comparison showed that as hypothesized, the organic farmers can get higher profit from their rice than the inorganic farmers. Binary logistic regression analysis showed that six factors influencing farmers' participation in the SOFA, including their age, farming experiences, family labors, farming activities, education and profit margin. This study implied the government to promote local organic aroma rice to more private export companies; the local authority can encourage local farmers to participate in organic group, by providing more information and simplifying some processes; the private companies should maintain reasonable price to sustain profits for organic members.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):259-264.
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    ABSTRACT: The efficient plant regeneration protocols were developed for Doritaenopsis Taisuco Ladylip through callus culture and somatic embryogenesis. The embryogenic calli were cultured on half strength Murashige and Skoog (MS) medium supplemented with 0.5 mg.L-1 thidiazuron, 2.5 mg.L-1 2,4 dichlorophenoxyacetic acid, 30 g.L-1 sucrose and 3 g.L-1 Gelrite for proliferation. Basal salts, carbohydrate of medium obviously affected the somatic embryogenesis of callus. The highest frequency of somatic embryogenesis was obtained when embryogenic call were cultured on half strength MS medium containing 20 g.L-1 maltose or 10 g.L-1 trehalose. The protocorm-like bodies well developed into plantlets after changing the basal salts to Hyponex, and carbohydrate to sucrose. The histological processing of somatic embryogenesis from callus was observed with light microscopy, and somatic embryo was clearly origin from single cell.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):13-22.
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    ABSTRACT: Identification of genetic polymorphisms in the genes related to plumage color and elucidation of their associations with plumage phenotypes are important for the selection of desirable plumage colors. The aim of this study is to identify candidate genetic polymorphisms conferring white plumage color to select ducks with desirable plumage colors. Single nucleotide polymorphism (SNPs) in 4 candidate genes, namely the Agouti signaling protein gene (ASIP), Dopachrome tautomerase gene (DCT), Melanocortin 1 receptor gene (MC1R), and Microphthalmia-associated transcription factor gene (MITF), were investigated in forty birds, of which 20 were colored Korean native ducks and 20 were white-colored commercial ducks. Twenty-one primer pairs were designed to amplify entire exons along with partial introns of the 4 genes, and the PCR products were sequenced. A total of 83 polymorphisms were identified in these genes. We identified 8 and 36 SNPs in the ASIP and MITF genes, respectively. Thirty polymorphisms, comprising of 4 non-synonymous SNPs, were identified in the DCT gene. Two non-synonymous SNPs were identified in the MC1R gene. Two genetic variations [(c.726C>T and g.10585-88→AATC (4-bp indel)] in the DCT gene revealed significant associations with the 2 different colored breeds (P<0.001). The results of this study, after further verifications of the candidate SNPs, can be helpful for the selection of Korean native ducks with desirable plumage colors.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):119-126.
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    ABSTRACT: Extreme climate phenomena are occurring around the world caused by global climate change, and Korea is no exception. Heavy rains continue to occur in Korea, which exceed the previous highest rainfall records. In particular, as flash floods generate heavy rainfall on the mountains over a relatively a short period of time, the likelihood of landslides increases. Therefore, it is necessary to scientifically analyze landslide risk areas to minimize damage in the event of a landslide, and to collect and analyze a variety of spatial information. This study constructs a spatial information database using GIS and integrating geography, hydrology, geology, and forestry, which is required for a complete analysis of landslide risk areas. We also carried out a case study of Injegun, Gangwondo, which suffered from serious landslides and flash floods in 2006 after Typhoon Ewiniar, by overlaying site monitoring data with airborne images. Furthermore, this study evaluates slope stability of the affected areas using SINMAP (Stability Index Mapping), analyzes spatial data that have high correlation with selected landslide areas using Likelihood Ratio, and prepares landslide prediction of the mountainous areas that are vulnerable to disasters.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):43-50.
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    ABSTRACT: Cymbidium orchid (Cymbidium iridioides) is widely cultivated in Northern mountainous provinces of Vietnam, especially in Sa Pa, Lao Cai province. However, severe outbreaks of brown rot disease in C. iridioides occurred in July, 2013 due to abnormal weather conditions that resulted in significant loss for growers. In order to identify exactly the causal agent of the disease, the infested samples were collected. Twenty five bacterial isolates were selected and no fungus was present in the samples. Pectolytic activity of those bacterial isolates was determined on potato tuber slices and the virulence was assessed on cymbidium cut leaves in vitro. As results, three bacterial isolates [M3(1), M3(2) and M4(3)] induced different rot symptoms on potato tuber slices and cymbidium cut leaves. Based on their bacteriological characteristics and 16S rRNA gene sequence analysis, these bacterial isolates M3(1), M4(3) and M3(2) were identified as Pectobacterium carotovorum subsp. carotovorum, P carotovorum and Pseudomonas sp., respectively. The results suggested that bacterial brown rot disease of C. iridioides in Sa Pa, Lao Cal province, might involve three causal bacterial species.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):1-6.
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    ABSTRACT: To develop Wood Based Activated Carbon Fibers Paperboard (WACFP) as a moisture proof material for food use, Nadelholz/Laubholz Unbleached Kraft Pulp (NUKP/LUKP) and cardboard from recycled cartons were used as precursors for the method of physical activation with steam to prepare activated carbon fibers (ACFs). The ACFs were evaluated by a preliminary safety evaluation (Ames Test) and reverse mutation assay (antimutagenic activity). The Survival (%) for Salmonella typhimurium TA98 and TA100, with or without the S9 mix (an external metabolic activation system) in the test range (1.0-5.0 mg/plate of ACFs), were all higher than those of a blank (control group) by more than 80%, and the ACFs for TA98 and TA100 with or without S9 did not exceed spontaneous revertants by more than two times, indicating the ACFs had no cytotoxicity or mutagenicity. The antimutagenicity against strains for the ACFs showed an insignificant difference between his revertants and the blank, suggesting the safety of the ACFs used primarily as a material for food use. WACFP was made by adding 10, 30 and 50 wt% of ACFs using the Beating CNS 12495 Method combined with preparation by the Handsheets CNS 11212 Method. The hygroscopic ability of WACFP was investigated. The water activity of all WACFP was from 0.40 to 0.45. The hygroscopicity of WACFP was 18.74-26.50% and 5.43-6.36% for 90% and 40% relative humidity (RH), and was lower than that of silica gel, 37.20 and 11.70%. While the hygroscopicity was changed from an RH 90% of absorption to an RH 40% desorption, the percent of desorption for the WACFP was reduced faster than that for silica gel. This can demonstrate that the percent weight of the tested saturated WACFP with different temperature desorptions decreased faster than that of silica gel. As a result, WACFP using ACFs prepared from NUKP, LUKP or cardboard could be a potential moisture proof material for food use.
    Journal- Faculty of Agriculture Kyushu University 02/2015; 60(1):163-171.