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Research progress on the mechanism of improving peanut yield by single-seed precision sowing

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Journal of Integrative Agriculture 2020年第8期19卷 1919-1927页

作者： zhang jia-lei GENG Yun GUO Feng LI Xin-guo WAN Shu-bo Biotechnology Research Center Shandong Academy of Agricultural Sciences/Shandong Provincial Key Laboratory of Crop Genetic ImprovementEcology and PhysiologyJinan 250100P.R.China

The contradiction between the supply and demand of edible vegetable oil in China is prominent,and the self-sufficiency rate is less than 35%.Peanut has a very outstanding status in ensuring the security of edible oil and *** emphasis of increasing peanut yield should be the improvement of pod yield per unit area,because the total yield of peanut has not increased as *** is attributed to mainly two factors-low increase in the crop productivity and the competition for land for grain and cotton *** traditional double-seed sowing pattern,it is difficult to further increase the peanut yield due to the serious contradiction between populations and individuals and the declining population quality under high-yield ***-seed precision sowing was proven to be a new way to increase the economic coefficient(economic yield/biological yield)with the basic stability of the total biomass,which could make plants distribute evenly,reduce the competition among individuals and attain the full production potential of single *** order to reveal the mechanism of increasing peanut yield by single-seed precision sowing,the effects on the ontogenetic development(plant character,physiological characteristic and nutrient utilization)and population structure(population uniformity and photosynthesis,source-sink relationship and yield composition)were systematically *** study reports establishment of the high-yield cultivation technology system with the key technology of single-seed precision sowing and the supporting technology of fertilizing and *** anticipate its wider application for the improvement of peanut yield.

关键词： peanut single-seed precision sowing ontogenetic development population structure yield-increasing mechanism key technology

Acoustic Emission Source Linear Localization Based on an Ultra-Short FBGs Sensing System

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Photonic Sensors 2014年第2期4卷 152-155页

作者： Zhongwei JIN Mingshun jiaNG Qingmei SUI Faye zhang lei jia School of Control Seience and Engineering Shandong University Jinan 250061 China

An acoustic emission （AE） linear location system was proposed, which employed fiber Bragg gratings （FBGs） as AE sensors. It was demonstrated that the FBG wavelength could be modulated as the static case when the grating length was much shorter than the AE wavelength. In addition, an improved AE location method based on the Gabor wavelet transform （WT） and threshold analysis was represented. The method was testified through AE linear location experiments based on a tunable narrow-band laser interrogation system using ultra-short FBG sensors as AE sensors. Results of the experiments showed that 86% of the linear location errors were less than 10mm.

关键词： Acoustic emission (AE) linear location fiber Bragg gratings (FBGs) Gabor wavelet transform (WT),threshold analysis

Single-seed sowing increased pod yield at a reduced seeding rate by improving root physiological state of Arachis hypogaea

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Journal of Integrative Agriculture 2020年第4期19卷 1019-1032页

作者： LIANG Xiao-yan GUO Feng FENG Ye zhang jia-lei YANG Sha MENG Jing-jing LI Xin-guo WAN Shu-bo Shandong Institute of Sericulture Yantai 264002P.R.China Biotechnology Research Center Shandong Academy of Agricultural SciencesJinan 250100P.R.China Shandong Provincial Key Laboratory of Crop Genetic Improvement Ecology and PhysiologyJinan 250100P.R.China Agriculture Bureau of Yiyuan Zibo 256100P.R.China Shandong Academy of Agricultural Sciences Jinan 250100P.R.China

Double-seed sowing(two seeds per hole)is the dominant pattern of peanut sowing in China,but within-hole plant competition usually limits their growth and yield ***,the traditional double-seed sowing method does not facilitate mechanization during *** objective of this study was to determine if single-seed sowing at a proper seeding rate yielded better than traditional double-seed sowing pattern and the differences of physiological metabolism of roots.A field experiment was conducted in two consecutive years to compare pod yields of single-seed sowing at 180000(S180),225000(S225),and 270000 seeds ha^-1(S270)with that of double-seed sowing at 270000 seeds ha^-1(D270)using a completely randomized block design with four *** the root bleeding sap rate,nutrient content,and the main hormone contents in root bleeding sap were also comparatively *** the pod yields of single-seed sowing at the three densities were higher than that of traditional double-seed sowing(D270),S225 yielded better than the other two single-seed sowing treatments(S180 and S270).The increased pod yield in single-seed sowing at 225000 seeds ha^-1 was mainly due to the higher pod dry weight per plant and harvest *** improved pod dry weight and shoot growth had closely relationship with the enhanced root physiological traits such as the increased root bleeding sap rate,content of free amino acids,soluble sugars,K^+,Mg^2+,Zn^2+,and Ca^2+of the individual plant *** improved activity of root reductive,nitrate reductase(NR)and ATPase and higher zeatin and zeatin riboside(Z+ZR)content of root bleeding sap were alsocrucial to the pod and shoot growth of ***-seed sowing at a moderate seeding rate(S225)is a potential practice to increase pod yield and to save seed cost.

关键词： peanut sowing pattern seeding rate root traits yield

Arbuscular mycorrhizal fungi combined with exogenous calcium improves the growth of peanut(Arachis hypogaea L.)seedlings under continuous cropping

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Journal of Integrative Agriculture 2019年第2期18卷 407-416页

作者： CUI Li GUO Feng zhang jia-lei YANG Sha MENG Jing-jing GENG Yun WANG Quan LI Xin-guo WAN Shu-bo Biotechnology Research Center Shandong Academy of Agricultural Sciences/Key Laboratory of Crop Genetic Improvement and Ecological Physiology of Shandong ProvinceJinan 250100P.R.China Scientific Observing and Experimental Station of Crop Cultivatio n in East China Ministry of AgricultureJinan 250100P.R.China College of Life Sciences Shandong Normal UniversityJinan 250014P.R.China Shandong Academy of Agricultural Sciences Jinan 250100P.R.China

The growth and yield of peanut are negatively affected by continuous *** mycorrhizal fungi(AMF)and calcium ions(Ca^(2+))have been used to improve stress resistance in other plants,but little is known about their roles in peanut seedling growth under continuous *** study investigated the possible roles of the AMF Glomus mosseae combined with exogenous Ca^(2+)in improving the physiological responses of peanut seedlings under continuous *** combined with exogenous Ca^(2+)can enhance plant biomass,Ca^(2+)level,and total chlorophyll *** exogenous Ca^(2+)application,the F_v/F_m in arbuscular mycorrhizal(AM)plant leaves was higher than that in the control plants when they were exposed to high irradiance *** peroxidase,superoxide dismutase,and catalase activities in AM plant leaves also reached their maximums,and accordingly,the malondialdehyde content was the lowest compared to other ***,root activity,and content of total phenolics and flavonoids were significantly increased in AM plant roots treated by Ca^(2+)compared to either *** inoculation or Ca^(2+)treatment *** levels of AhCaM,AhCDPK,AhRAM1,and AhRAM2 were significantly improved in AM plant roots under exogenous Ca^(2+)*** implied that exogenous Ca^(2+)might be involved in the regulation of *** colonization of peanut plants,and in turn,AM symbiosis might activate the Ca^(2+)signal transduction *** combination of AMF and Ca^(2+)benefitted plant growth and development under continuous cropping,suggesting that it is a promising method to cope with the stress caused by continuous cropping.

关键词： Arachis hypogaea L. arbuscular mycorrhizal fungi continuous cropping exogenous calcium

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上海市长宁区居民吸烟及相关行为分析

上海预防医学 2021年第9期33卷 829-832,844页

作者：张佳蕾钱蕾上海市长宁区疾病预防控制中心上海200051

【目的】了解上海市长宁区居民吸烟行为和烟草依赖情况,为制定干预措施提供合理依据。【方法】对1760名15岁及以上长宁区居民开展问卷调查,内容涉及吸烟行为、烟草依赖行为和复吸情况等,采用χ^(2)检验对不同组间率进行比较,应用logisti... 详细信息

【目的】了解上海市长宁区居民吸烟行为和烟草依赖情况,为制定干预措施提供合理依据。【方法】对1760名15岁及以上长宁区居民开展问卷调查,内容涉及吸烟行为、烟草依赖行为和复吸情况等,采用χ^(2)检验对不同组间率进行比较,应用logistic回归模型进行相关因素分析。【结果】长宁区15岁及以上人群现在吸烟率为17.0%(299/1760),其中男性吸烟率为35.8%(285/795),女性吸烟率1.5%(14/965);男性、年龄较大、文化程度较低、患慢性病的组别中吸烟率较高(P<0.05);“知道吸烟的危害却仍旧吸烟”是吸烟者中最严重的烟草依赖行为,达85.3%(255/299);本次调查中有226人表示曾尝试戒烟,戒烟后最常出现的症状为“吸烟冲动”占61.1%(138/226),其中“吸烟冲动”(χ^(2)=8.512,P=0.004)、“坐立不安”(χ^(2)=4.000,P=0.045)、“情绪低落”(χ^(2)=6.328,P=0.010)三种症状下复吸率较高。【结论】上海市长宁区吸烟率低于全国和上海平均水平,烟草依赖行为主要集中在意识态度方面。开展干预工作应围绕吸烟率较高的重点人群,针对严重烟草依赖行为进行矫正,对主要不良症状进行干预,引导戒烟。在健康知识传播基础上提供更为准确有效的戒烟服务。

关键词：吸烟行为影响因素烟草依赖

Nomogram for overall survival in ampullary adenocarcinoma using the surveillance,epidemiology,and end results database and external validation

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World Journal of Clinical Oncology 2025年第2期16卷 36-51页

作者： jia Yang Zi-Yi Wang Jing Chen Yao zhang lei Chen Department of Gastroenterology The First Affiliated Hospital of Army Medical UniversityChongqing 400038China Department of Epidemiology College of Preventive MedicineArmy Medical UniversityChongqing 400038China

BACKGROUND Ampullary adenocarcinoma is a rare malignant tumor of the gastrointestinal ***,only a few cases have been reported,resulting in limited information on *** To develop a dynamic nomogram using internal and external validation to predict survival in patients with ampullary *** Data were sourced from the surveillance,epidemiology,and end results stat *** patients in the database were randomized in a 7:3 ratio into training and validation *** Cox regression univariate and multivariate analyses in the training group,we identified independent risk factors for overall survival and cancer-specific survival to develop the *** nomogram was validated with a cohort of patients from the First Affiliated Hospital of the Army Medical *** For overall and cancer-specific survival,12(sex,age,race,lymph node ratio,tumor size,chemotherapy,surgical modality,T stage,tumor differentiation,brain metastasis,lung metastasis,and extension)and 6(age;surveillance,epidemiology,and end results stage;lymph node ratio;chemotherapy;surgical modality;and tumor differentiation)independent risk factors,respectively,were incorporated into the *** area under the curve values at 1,3,and 5 years,respectively,were 0.807,0.842,and 0.826 for overall survival and 0.816,0.835,and 0.841 for cancer-specific *** internal and external validation cohorts indicated good consistency of the *** The dynamic nomogram offers robust predictive efficacy for the overall and cancer-specific survival of ampullary adenocarcinoma.

关键词： Ampullary adenocarcinoma Dynamic nomogram Gastrointestinal tract Surveillance Epidemiology End results database Survival rate

Current status of drug therapy for chronic hepatitis B

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World Journal of Gastroenterology 2025年第2期31卷 1-12页

作者： Chuang jiang Zhi-Hong zhang jia-Xin Li Division of Liver Surgery Department of General Surgery and Laboratory of Liver Surgeryand State Key Laboratory of Biotherapy and Collaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of General Surgery Dafang County People's HospitalBijie 551600Guizhou ProvinceChina

In this editorial,we comment on the article by Meng et *** hepatitis B(CHB)is a significant global health problem,particularly in developing *** B virus(HBV)infection is one of the most important risk factors for cirrhosis and hepatocellular *** and treatment of HBV are key measures to reduce *** present,drug therapy can effectively control virus replication and slow disease progression,but completely eliminating the virus remains a ***-HBV treatment is a long-term process,and there are many kinds of antiviral drugs with different mechanisms of action,it is essential to evaluate the safety and efficacy of these drugs to reduce side effects and improve patients’*** will summarize the current status of CHB drug treatment,hoping to provide a reference for the selection of clinical antiviral drugs.

关键词： Chronic hepatitis B Hepatitis B virus Anti virus Drug treatment Therapy

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中国花生产业降本增效新途径探讨

中国油料作物学报 2019年第5期41卷 657-662页

作者：万书波张佳蕾山东省农业科学院生物技术研究中心/山东省作物遗传改良与生态生理重点实验室/农业农村部华东地区作物栽培科学观测实验站

在主要油料作物中,花生单位面积产油量最高,发展花生产业对保障我国食用油脂安全具有越来越重要的作用。本文简述了中美花生产业发展概况,比较了中美两国花生生产成本和种植收益差异,分析了我国花生种植成本高、种植效益低和国际竞争力... 详细信息

在主要油料作物中,花生单位面积产油量最高,发展花生产业对保障我国食用油脂安全具有越来越重要的作用。本文简述了中美花生产业发展概况,比较了中美两国花生生产成本和种植收益差异,分析了我国花生种植成本高、种植效益低和国际竞争力下降的主要原因。针对种、管、收、加工等全产业链的各环节,提出了我国花生降本提质增效的几条新途径,为降低花生生产成本、提高产量和质量、提升生产加工能力提供理论依据,对提升花生产业市场竞争力和实现农业增效、农民增收具有重要意义。

关键词：花生全产业链产业现状生产成本种植效益国际竞争力

ICP-MS法测定不锈钢容器中的重金属元素

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安徽农业科学 2016年第35期44卷 126-126,170页

作者：张家磊安徽省食品药品检验研究院安徽合肥230051

[目的]建立简便、快速、高效的测定不锈钢容器中铅、镍、镉、铬、砷的方法。[方法]采用微量进样、冷凝雾化、在线添加内标物的方式对影响因素进行了研究,利用电感耦合等离子体质谱（ICP-MS）法直接测定不锈钢容器中铅、镍、镉、铬、砷。... 详细信息

[目的]建立简便、快速、高效的测定不锈钢容器中铅、镍、镉、铬、砷的方法。[方法]采用微量进样、冷凝雾化、在线添加内标物的方式对影响因素进行了研究,利用电感耦合等离子体质谱（ICP-MS）法直接测定不锈钢容器中铅、镍、镉、铬、砷。[结果]该方法线性范围宽,线性相关系数大于0.999,样品加标回收率83.8%~111.1%,相对标准偏差在10%之内。[结论]该方法具有快捷、准确、灵敏度高、精密度好等优点,可满足不锈钢容器中铅、镍、镉、铬、砷的检测要求。

关键词：电感耦合等离子体质谱法不锈钢制品铅镍镉铬砷内标法