农业科技期刊栏目学术影响力的评价—以《热带作物学报》为例   总被引：2，自引：0，他引：2  

古小玲  薛刚  李永龙  张海东  孙继华 《热带作物学报》2015,36(12):2311-2316

根据中国知网中检索《热带作物学报》2010~2014年发表论文的关键词词频、被引频次、下载频次、论文作者等数据统计栏目篇被引频次、下载频次和影响因子情况，分析农业科技期刊栏目的学术影响力。结果表明：2010~2014年《热带作物学报》文章涉及的主要热带作物为橡胶树、木薯、甘蔗、香蕉、水稻、荔枝、龙眼、芒果和番木瓜等；论文内容涵盖作物营养、栽培与遗传育种，植物生理生化，生物技术与组织培养，作物病虫害及其防治、环境保护，农产品加工与分析检测、综述等6个栏目，其中综述栏目的影响因子最高，发表论文较多的作者文章均属于生物技术栏目。综合上述分析结果，提出了策划精品栏目、加强编辑栏目组稿、针对综述栏目约稿、开辟学术探讨窗口、借助新媒体打造栏目特色等建议，以体现本刊的专业特色和刊物宗旨，将成为读者阅读的向导和作者撰稿的指南。  相似文献   

Evaluation on Tolerance of Montmorillonite as a Mycotoxin Adsorbent     

LIU Shao-wen  BAI Xue  CHENG Chuan-min  GUO Chun-hua  XIAO Ying  LV Na 《中国畜牧兽医》2015,42(6):1449-1457

In order to study the tolerance dose of Kunming mice to montmorillonite as a mycotoxin adsorbent in diets,the experiment selected 60 healthy male Kunming mice with initial average body weight of (17±0.12)g,randomly divided them into 5 treatments with two replicates per group and 6 mice per replicate.Five experimental diets were added to 0 (control group),0.5%,1%,2% and 5% montmorillonite,respectively.After 30 days,the growth performance,nutrients apparent digestibility,serum biochemical indices and internal organization were tested to determine the tolerance dose of montmorillonite for Kunming mice.The results showed that the ADFI was significantly increased in 0.5% group (P< 0.05),while there were no significant differences in ADFI and ADG between 1% group and control group (P> 0.05),then the ADFI was significantly decreased with the increasing of montmorillonite supplemental level (P< 0.05).The ADG in 2% group had no significant difference when compared with the control group (P> 0.05),while significantly lower than that in 0.5% and 1% groups (P< 0.05).The apparent digestibility of DM,CP and EE showed no significant effect at any level of montmorillonite (P> 0.05).Serum ALT,AST activities and MDA content were gradually increased with the montmorillonite supplemental level increasing,and that in 1%,2% and 5% groups were significantly higher than that in control group (P< 0.05),but there were no significant differences between 0.5% group and control group (P> 0.05).Tissue sections showed that mice livers were damaged in varying degrees when the montmorillonite supplemental level was 5%.In conclusion,based on a comprehensive consideration of all indexes,it could be seen that the tolerance dose of the tested montmorillonite for Kunming mice was between 0.5% and 2% when mycotoxin contents in diets were in security range.  相似文献   

北川白山羊基因组与表型性状相关的多态性RAPD标记     

蔡欣  苟兴能  董绍森  刘畅  王雪  李勇 《中国兽医学报》2011,31(10)

北川白山羊是在特定生态条件下未经系统繁育而形成的优良地方山羊品种,在生长发育、繁殖和抗逆等性状方面具有突出优势。通过对122只北川白山羊个体基因组的扩增,结果从80条RAPD引物中选出12条多态引物,北川白山羊群体平均遗传相似率和遗传多样性指数分别为0.859 8±0.077 6和0.919 8,表明北川白山羊品种具有一定的遗传分化和较丰富的遗传多样性。在12条多态性引物中,SBS06同时对体质量（P=0.028）、体高（P=0.017）和体长（P=0.037）具有显著影响,SBS02对体质量（P=0.033）和体高（P=0.034）具有显著效应,所以推断影响体质量和体高性状的QTL基因座可能与RAPD标记SBS06和SBS02相连锁,可以应用于北川白山羊体质量和体高性状的标记辅助选择以及相应主效基因的进一步研究。  相似文献   

核桃枝枯病病原菌鉴定及其生物学特性     

刘静  孙翠翠  薛德胜  李保华  练森  王彩霞 《植物病理学报》2020,50(6):774-778

In May 2018,a new shoot dieback disease was found in several walnut orchards in Rizhao,Shandong Province.The fungal pathogen was obtained on PDA plate from diseased walnut shoots using a tissue isolation method.The purified fungal isolates formed white to grey colonies on PDA plate and three single spore isolates SDWa1-SDWa3 were obtained.Based on morphological characteristics and analysis of rDNA internal transcribed spacer (ITS),calmodulin (CAL),translation elongation factor 1-α (TEF1) and β-tubulin (TUB) sequences,the fungal isolates were identified as Diaporthe nobilis,a new pathogen on walnut.The test of Koch's rule confirmed that D.nobilis was the pathogen of walnut shoot dieback.To determine optimal growing conditions for the pathogen,its biological characteristics test was conducted.The results showed that the optimal growth temperature and pH value were at 25℃ and pH 5-9,respectively.The optimum carbon source was glucose,and favourable nitrogen source was peptone.  相似文献   

绿色环保型循环冷却水处理技术     

李明言  王艳秋  李想道  薛冰  付宁 《绿色科技》2015,(7)

分析了当前绿色环保的循环冷却水的处理工艺、现状、机理和应用情况，指出了绿色环保型循环冷却水的重要性，以期引起业内的重视并提供参考。  相似文献   

Spectrum-Effect Relationship Between High Performance Liquid Chromatography Fingerprints and Anticoccidial Activities of a Compound Chinese Medicine   总被引：1，自引：0，他引：1  

XIAO Sui FEI Chen-zhong ZHANG Li-fang ZHENG Wen-li ZHANG Ke-yu XUE Fei-qun 《中国农业科学(英文版)》2014,(5):1082-1089

Quality control and screening of active substances in traditional Chinese medicines have been performed using fingerprint analysis. The spectrum-effect relationship between chromatography fingerprints and efficacy of herbal drugs is considered as a potentially useful method for determining active ingredients in complex mixtures. The study was designed to develop a method for determining the bioactive components of a compound Chinese medicine called Tiefeng based on spectrum-effect relationships between high-performance liquid chromatography （HPLC） fingerprints and anticoccidial activities. Four peaks of the established HPLC fingerprint indicate the main bioactive components of this medicine. In addition, pharrnacodynamic atlas was defined and used to assess the anticoccidial activity of Tiefeng from different sources for the first time. We found that the level of anticoccidial activity of Tiefeng was consistent with the degree of similarity between the pharmacodynamic atlas and chromatogram of any sample. Furthermore, effect of this medicine was related with the main active constituents, along with the origin and the harvesting time.  相似文献   

稳定性肥料发展与展望   总被引：13，自引：5，他引：8  

武志杰  石元亮  李东坡  卢宗云  魏占波  张丽莉  宫平  王玲莉  房娜娜  李杰  李忠  薛妍  宋玉超 《植物营养与肥料学报》2017,23(6):1614-1621

稳定性肥料的核心是脲酶抑制剂和硝化抑制剂，是指在肥料的生产过程中添加脲酶抑制剂或硝化抑制剂，或者同时添加两种抑制剂的肥料。其良好的农学效应和环境效益为实现农业节本增效提供重要途径。近年来稳定性肥料在基础科研和生产应用领域均发展较快，本文对国内外相关研究进行系统总结，并指出未来的发展方向。首先，回顾了抑制剂的研发、作用机理等方面的进展；其次，概述了稳定性肥料的品种、生产工艺、产能及推广应用情况；最后，对稳定性肥料应用后的作物产量和环境效应进行了阐述。为了促进稳定性肥料产业的健康持续发展，未来需要进一步加强环境友好型抑制剂品种的研发；重视抑制剂保护技术的研究，以解决抑制剂作用效果持久性和稳定性的问题；加强不同抑制剂配伍协同，抑制剂与增效剂复合作用机理与技术的研究；研究开发针对不同区域、不同作物的稳定性专用肥料。  相似文献   

凤县休闲农业发展现状及存在问题与对策     

乔春妮  薛建宏  彭强 《黑龙江农业科学》2014,(9)

近年来,凤县转型发展休闲农业取得了巨大成功,对其发展历程进行深入研究,可以进一步促进凤县休闲农业规范快速发展,同时为我国休闲农业发展提供范例参考。详细阐述了凤县休闲农业发展的现状,对凤县发展休闲农业的优势进行了分析,就存在的问题重点从加强政府引导、理顺管理体制、制定规划标准及加大扶持力度4个方面阐明了凤县休闲农业发展的新举措,以期为凤县在休闲农业发展中获取更大的竞争优势提供参考。  相似文献   

柑橘CHS基因序列多态性及表达水平对类黄酮生物合成的影响     

王志彬  申晚霞  朱世平  薛杨  赵晓春 《园艺学报》2015,42(3):435-439

查尔酮的合成是类黄酮生物合成途径中的一个关键节点。从10个柑橘种质中克隆了查尔酮合成酶(chalcone synthase,CHS)基因,并对其不同时期的果实和叶片中的类黄酮含量进行了测定,分析了CHS基因的序列多态性与类黄酮含量之间的关系;同时通过qRT-PCR检测了CHS基因在不同种质之间以及同一种质的不同组织间的表达差异。结果表明,柑橘CHS基因的核苷酸序列高度保守,相似度达98%以上。聚类分析表明,CHS氨基酸序列的多态性有物种特异性,而且与类黄酮含量有一定的相关性。CHS基因的表达水平在不同种质、部位及生长发育时期有显著差异,这些差异与类黄酮的含量有显著的相关性,说明CHS基因对类黄酮的生物合成有明显影响。  相似文献   

仙游县郊尾镇农村集体资金管理存在的问题与对策     

薛聿用 《福建农业科技》2017,(4)

总结仙游县郊尾镇农村集体资产管理存在的主要问题,分析其原因,并提出相应对策。  相似文献