Jarq-japan Agricultural Research Quarterly最新文献_第8页

Species Composition and Seasonal Abundance of Thrips (Thysanoptera: Thripidae) on Open-field Chrysanthemum (Asteraceae) and Surrounding Weeds in Shizuoka Prefecture, Central Japan

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.49

Kentaro Matsuda, Minoru Ichihara

引用次数: 0

Development of Molecular Identification Methods for a Sciarid Fly, Bradysia odoriphaga (Diptera: Sciaridae) 香蝇一种分子鉴定方法的发展(双翅目:香蝇科)

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.19

M. Arimoto

{"title":"Development of Molecular Identification Methods for a Sciarid Fly, Bradysia odoriphaga (Diptera: Sciaridae)","authors":"M. Arimoto","doi":"10.6090/jarq.56.19","DOIUrl":"https://doi.org/10.6090/jarq.56.19","url":null,"abstract":"Recently, damage to Welsh onion, carrot, and Chinese chive by Bradysia odoriphaga Yang & Zhang, 1985 was reported from Saitama and Gunma Prefectures, Japan. Molecular identification methods are required to differentiate this species from other domestic sciarid flies. First, a PCR method using species-specific primers was developed to discriminate this species from three other sciarid species, Bradysia impatiens (Johannsen, 1912), Pnyxia scabiei (Hopkins, 1895), and Lycoriella ingenua (Dufour, 1839). Second, the applicability of a nondestructive DNA extraction method for this species was determined for cases where further morphological identification was required. It could be used for the morphological identification of specimens in addition to PCR using species-specific primers and DNA barcoding. Third, the lower limit of the proportion of this species in bulk samples of sciarid flies was determined. In larvae and male adults, one individual of this species could be detected in bulk samples (up to 800 individuals) of other species by PCR using species-specific primers. Further, it was revealed that specimens on the monitoring traps in the field should be collected within 8 days, regardless of the season. By combining these methods, an efficient identification method for monitoring this species was established using PCR with species-specific primers.","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"10 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90649586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of Processing on Stable Isotope Compositions (δ13C, δ15N, and δ18O) of Rice (Oryza sativa) and Stable Isotope Analysis of Asian Rice Samples for Tracing Their Geographical Origins 处理对水稻(Oryza sativa)稳定同位素组成(δ13C、δ15N和δ18O)的影响及亚洲水稻样品溯源的稳定同位素分析

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.95

Yaeko Suzuki, R. Nakashita, R. Huque, M. Khatun, Z. Othman, N. A. Salim, Saw Thantar, P. C. Pabroa, Pui Yieng Kadeleine Kong, V. Waduge, W. Srinuttrakul, Arisa Hosonuma, K. Chiku, Mitsuru Yoshida

{"title":"Effects of Processing on Stable Isotope Compositions (δ13C, δ15N, and δ18O) of Rice (Oryza sativa) and Stable Isotope Analysis of Asian Rice Samples for Tracing Their Geographical Origins","authors":"Yaeko Suzuki, R. Nakashita, R. Huque, M. Khatun, Z. Othman, N. A. Salim, Saw Thantar, P. C. Pabroa, Pui Yieng Kadeleine Kong, V. Waduge, W. Srinuttrakul, Arisa Hosonuma, K. Chiku, Mitsuru Yoshida","doi":"10.6090/jarq.56.95","DOIUrl":"https://doi.org/10.6090/jarq.56.95","url":null,"abstract":"W e evaluated the effects of processing (i.e., polishing, washing, boiling, and rice cake preparation) on the stable carbon (δ 13 C), nitrogen (δ 15 N), and oxygen (δ 18 O) isotopic compositions of rice ( Oryza sativa ) to assess its geographical origin. There were no significant differences in their δ 13 C, δ 15 N, and δ 18 O values before and after boiling and rice cake preparation, indicating that the database of the δ 13 C, δ 15 N, and δ 18 O values of rice samples could be adapted and used to trace the geographical origin of rice used for cooking and rice cake preparation. Conversely, the δ 13 C and δ 18 O values were significantly altered after polishing. After the brown rice samples were polished at a polishing rate of 90%-92%, we determined the δ 13 C, δ 15 N, and δ 18 O values of the polished rice samples from nine countries—Australia, Bangladesh, China, Japan, Malaysia, Myanmar, Philippines, Sri Lanka, and Thailand. The rice samples from Bangladesh, Malaysia, Philippines, and Sri Lanka had significantly lower δ 13 C values than those from the other five countries. The Chinese, Japanese, and Philippine rice samples had lower δ 18 O values than those from the other countries. The δ 13 C and δ 18 O values could be potential tools for tracing the geographical origin of Asian rice.","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"11 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91115550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Changes in Certain Paddy Soil Properties under Perforated Sheet Pipe as Subsurface Shallow Drainage 多孔板管地下浅层排水对水稻土某些特性的影响

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.59

Yinn Mar Soe, Y. Shinogi, T. Taniguchi

引用次数: 0

Nitrogen Fate and Adaptation of the Microbial Community Responsible for Ammonia Removal in a Biofilter Treating Waste Gas from Livestock Manure Composting 生物过滤器处理禽畜粪便堆肥废气中氮的归宿和负责氨去除的微生物群落的适应

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.25

Tomoko Yasuda, Y. Fukumoto, K. Kuroda, D. Hanajima, M. Waki, Kazuyoshi Suzuki

{"title":"Nitrogen Fate and Adaptation of the Microbial Community Responsible for Ammonia Removal in a Biofilter Treating Waste Gas from Livestock Manure Composting","authors":"Tomoko Yasuda, Y. Fukumoto, K. Kuroda, D. Hanajima, M. Waki, Kazuyoshi Suzuki","doi":"10.6090/jarq.56.25","DOIUrl":"https://doi.org/10.6090/jarq.56.25","url":null,"abstract":"Treating NH 3 -loaded gases is necessary for improved livestock management. Nitrification, the sequential oxidation of NH 3 to NO 3 − via NO 2 − , is an important microbial process for effective long-term NH 3 removal. Denitrification, a microbial respiration process that reduces NO 3 − and NO 2 − to N 2 under anaerobic conditions, can also contribute to nitrogen conversion in biofiltration systems. Understanding these microbial processes is imperative to control NH 3 removal better and achieve nitrogen balance in biofiltration. In this review, we discuss the functions and compositions of the microbial community responsible for nitrification and denitrification in a biofiltration system, along with the relationship between these processes and the nitrogen mass balance. Our results indicate that both nitrification and denitrification could be achieved by a consortium of microbes well adapted to the ecosystem in a full-scale biofilter. Moreover, the microbial community was controlled by substrate availability. Nitrogen removal potential was up to 39% in a laboratory-scale biofilter with intermittent water recirculation, and the unknown nitrogen loss was considered mainly denitrified. Under gradual accumulation of nitrogenous compounds, the gamma proteobacterial group contributes to NH 3 oxidization. These findings will improve our understanding of microbial fluctuations and the complex behavior of nitrifiers and denitrifiers within an NH 3 -loaded biofiltration system.","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"23 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86248506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Development and Future Application of Transgenic Tall Fescue (Festuca arundinacea Schreb.) with Improved Important Forage and Turf Traits 具有改良饲草和草坪重要性状的转基因高羊茅的开发与应用前景

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.1

H. Sato

引用次数: 1

Control of Transmitted Solar Radiation Using Photoselective Covering Materials Improves Spinach (Spinacia oleracea L.) Yield during Summer 利用光选择性覆盖材料控制太阳辐射透射夏季产量

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.67

Y. Yoneda, Y. Kawasaki, H. Kawashima

引用次数: 0

Pathological Changes and Pathogenic Mechanisms of Infectious Bursal Disease (IBD) in Chickens Infected with IBD Viruses of Different Pathogenicities 不同致病性IBD病毒感染鸡传染性法氏囊病(IBD)的病理变化及致病机制

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.33

N. Tanimura

引用次数: 0

Development of Sustainable Technologies to Increase Agricultural Productivity and Improve Food Security in Africa 发展可持续技术以提高非洲农业生产力和改善粮食安全

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2022-01-01 DOI: 10.6090/jarq.56.7

K. Nakashima, S. Yanagihara, S. Muranaka, T. Oya

引用次数: 3

Agricultural, Economic, and Human Development: Joint Research Contributions of Japan and International Food Policy Research Institute 农业、经济和人类发展:日本和国际粮食政策研究所的联合研究贡献

IF 0.4 4区农林科学

Jarq-japan Agricultural Research Quarterly Pub Date : 2021-12-01 DOI: 10.6090/jarq.55.521

Hiroyuki Takeshima, Futoshi Yamauchi, Masahito Enomoto

{"title":"Agricultural, Economic, and Human Development: Joint Research Contributions of Japan and International Food Policy Research Institute","authors":"Hiroyuki Takeshima, Futoshi Yamauchi, Masahito Enomoto","doi":"10.6090/jarq.55.521","DOIUrl":"https://doi.org/10.6090/jarq.55.521","url":null,"abstract":"Over the past four decades, IFPRI Japanese Researchers (IFPRI-JR) significantly contributed to the knowledge advancement for various agrifood system issues in ways that are central to IFRRI’s mandates and complementary to the whole CGIAR system. This paper summarizes IFPRI-JR’s key knowledge work, its evolution over time, and its collective contributions. In earlier years especially up to the 2000s, various policy and market analysis tools were applied to agricultural policy reforms and price policies in Japan and elsewhere. More recently, to respond to the food crisis in 2007-08, IFPRI-JR’s research contributed to building empirical evidence on agrifood system policy issues in developing countries, including identification of key market failures and the appropriate role of the public sector in public goods provision in the presence of externalities and economies of scale. Over time the analytical scope expanded to institutional issues on resource management and markets, human capital formation, gender issues, agrifood system transformation, food and nutrition security. Finally, promising Japanese technologies and know-how were (i) identified for sustainable agrifood system development, and (ii) transferred to developing countries in the field of global nutrition security and their effectiveness shown. Collectively, IFPRI-JR have a long track record of addressing emerging as well as long-term structural issues, in both Japan and the world at large. Discipline: Social Science Additional key words: agrifood systems, policies, institutions, human capital, Japanese technologies and knowhow","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"22 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77636524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1