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建设社会主义新农村是实现社会公平和社会经济可持续发展的必然要求,是构建社会主义和谐社会的理性选择。本文运用复合生态系统整体观和复杂性思维的方法分析了社会主义新农村建设,用生态哲学的有关原理剖析了社会主义新农村建设中要重点解决的人与人、人与自然关系对立统一所产生的问题。  相似文献   
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采后病害是冬枣贮藏过程中的难题.对冬枣采后病害的类型、致病菌种类及其防治技术进行了分析概述,为冬枣贮藏环节有效控制病害发生提供技术参考和依据.  相似文献   
3.
提高《食用菌》杂志发行量的实践与对策   总被引:1,自引:0,他引:1  
采用资料统计、比较分析和个案解析的方法,剖析<食用菌>杂志的发行现状,总结了经验,揭示了问题,提出了增加发行量的对策措施.  相似文献   
4.
鉴于合著来稿署名作者在实验和论文撰写过程中的贡献及角色比较复杂,为提升稿件退修质量和效率,建议科技期刊编辑依据署名作者的实际贡献,结合论文中问题,与多位作者交流沟通,再进行汇总退修。1)明确交流对象,制作交流方案;2)与相应作者交流沟通,与实验执行人交流论文中有关材料、方法及原始数据的问题,与实验指导人沟通解决数据分析及图表中问题,与实验设计者探讨处理前言与讨论所存在的问题;3)由编辑汇总批注交流探讨信息和文字格式修改意见;4)交由执笔人进行全文修订。  相似文献   
5.
知识经济时代农业科技期刊的定位   总被引:4,自引:1,他引:3  
知识经济时代已经来临.知识经济的核心是人才,关键是创新.知识经济时代农业的竞争主要表现为知识资本的竞争.支持农业知识创新,培养创新意识,加速人力资本和新知识的积累,为提高国家的创新能力服务,是知识经济时代农业科技期刊的中心任务.  相似文献   
6.
We characterized yield-relevant characters and their variations over genotypes and environments (locations and years) by examining two rice varieties (9746 and Jinfeng) with high yield potential.9746 and Jinfeng were planted in two locations of Shanghai,China,during 2005 and 2006.The results show that there was a large variation in grain yield between locations and years.The realization of high yield potential for the two types of rice was closely related to the improved sink size,such as more panicles per square meter or grains per panicle.Stem and leaf biomasses were mainly accumulated from tillering stage to heading stage,and showed slow decline during grain filling.Meanwhile,some photosynthetic characters including net photosynthesis rate (Pn),leaf area index (LAI),specific leaf area (SLA),fluorescence parameter (maximum quantum yield of PSII,Fv/Fm),chlorophyll content (expressed as SPAD value),as well as nutrient (N,P,K) uptake were also measured to determine their variations over genotypes and environments and their relationships with grain yield.Although there were significant differences between years or locations for most measurements,SLA at tillering and heading stages,Fv/Fm and LAI at heading stage,stem biomass at heading and maturity stages,and leaf nitrogen concentration at tillering and heading stages remained little changed,indicating their pos-sible applications as selectable characters in breeding programs.It was also found that stem nitrogen accumulation at tillering stage is one of the most important and stable traits for high yield formation.  相似文献   
7.
Electroantennogram (EAG) evaluation of selected compounds from wilted leaves of black poplar, Populus nigra, showed that phenyl acetaldehyde, methyl salicylate, (E)-2-hexenal elicited strong responses from male antennae of Helicoverpa armigera. When mixed with sex pheromone (Ph), some volatiles, e.g. phenyl acetaldehyde, benzyl alcohol, phenylethanol, methylsalicylate, linalool, benzaldehyde, (Z)-3-hexenol, (Z)-3-hexenylacetate, (Z)-6-nonenol, cineole, (E)-2-hexenal, and geraniol elicited stronger responses from male antennae than Ph alone. Wind tunnel bioassay demonstrated that various volatiles could either enhance or inhibit the effect of synthetic sex pheromone. (E)-2-hexenal, (Z)-3-hexenol and linalool in combination with Ph could not induce any male to land on source at all, whereas phenyl acetaldehyde, benzaldehyde, (Z)-6-nonenol and salicylaldehyde combined with Ph enhanced male response rates by 58.63%, 50.33%, 51.85% and 127.78%, respectively, compared to Ph alone. These results suggested that some volatiles should modify sex pheromone caused behavior and that some of them couldpossibly be used as a tool for disrupting mating or for enhancing the effect of synthetic sex pheromone in the field. Project supported by Knowledge Innovation Program from Chinese Academy of Sciences (CAS) (No. KSCX2-02-5-2) and Shanghai Commission of Science and Technology (Nos. 023912004 and 01JC14051), China  相似文献   
8.
Papaya leaf curl China virus (PaLCuCNV) was previously reported as a distinct begomovirus infecting papaya in southern China. Based on molecular diagnostic survey, 13 PaLCuCNV isolates were obtained from tomato plants showing leaf curl symptoms in Henan and Guangxi Provinces of China. Complete nucleotide sequences of 5 representative isolates (AJ558116, AJ558117, AJ704604, FN256260, and FN297834) were determined to be 2738–2751 nucleotides, which share 91.7%–97.9% sequence identities with PaLCuCNV isolate G2 (AJ558123). DNA-β was not found to be associated with PaLCuCNV isolates. To investigate the infectivity of PaLCuCNV, an in-fectious clone of PaLCuCNV-[CN:HeNZM1] was constructed and agro-inoculated into Nicotiana benthamiana, N. tabacum Samsun, N. glutinosa, Solanum lycopersicum and Petunia hybrida plants, which induced severe leaf curling and crinkling symptoms in these plants. Southern blot analysis and polymerase chain reaction (PCR) indicated a systemic infection of test plants by the agro-infectious clone.  相似文献   
9.
科技论文中真菌拉丁学名的正确表述   总被引:2,自引:1,他引:1       下载免费PDF全文
鉴于科技论文中真菌拉丁学名表述不规范现象比较普遍,根据最新《国际植物命名法规》(维也纳法规)要求,介绍真菌拉丁学名的命名规则和书写规范,总结了真菌学名表述常见问题和注意事项,并对真菌学名正确与否的查证方法进行阐述,旨在引起论文作者和期刊编辑对此问题的重视。  相似文献   
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