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Effects of Chlorine-Based Fertilizers on Tomato Growth under Soilless Culture

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Phyton-International Journal of Experimental Botany 2025年第1期94卷 243-250页

作者： Fei li meili Ding Hui Yuan Siping Wang Bin liang College of Agriculture and Forestry Technology Weifang Vocational CollegeWeifang262737China College of Resources and Environment Qingdao Agricultural UniversityQingdao266109China

This study investigated the effects of chlorine-based fertilizers under varying nitrogen solution concentrations in a soilless culture system. The experiment included four nitrogen solution concentration levels, with nitrogen concentrations of 6 mmol/L (C1), 12 mmol/L (C2), 18 mmol/L (C3), and 24 mmol/L (C4). Each nutrient concentration level was further divided into four chloride ion treatments (R1, R2, R3, and R4), where 100%, 60%, 33%, and 0% of the NH4+ and K+ ions were derived from NH4Cl and KCl, respectively. The length, surface area and volume of root were significantly higher by 25.3%~136.9%, 40.1%~173.1%, 27.9%~178.0%, respectively, in the R4 treatment than in the R1 and R2 treatments at flowering stage. The aboveground biomass and yield in the R4 treatment were significantly higher, by approximately 15.6%~43.5% and 16.6%~28.6%, respectively, than in the R1, R2, and R3 treatments at the picking stage. The C3 and C4 treatments significantly decreased biomass and yield by 31.9%~50.2% and 20.7%~50.5%, respectively, compared to the C1 and C2 treatments at the picking stage. Besides, the higher nutrient solution increased the incidence of blossom-end rot. In conclusion, high concentrations of chloride ions in nutrient solutions, especially when the Cl− concentration exceeded 10 mmol/L, have been shown to inhibit tomato growth in soilless culture systems. Therefore, replacing sulfur-based fertilizers by chlorine-based fertilizers is not recommended for tomato production under the studied conditions.

关键词： Sand culture chloride ion nitrogen solution concentration tomato yield blossom-end rot

Development and characterization of bacterial wilt-resistant synthetic polyploid peanuts

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The Crop Journal 2025年第1期13卷 125-134页

作者： Pei Du Fanpei Zeng Qian Wang lijuan Miao Feiyan Qi meili Yang Xiao Wang Hua liu Guoquan Chen liuyang Fu Suoyi Han Ziqi Sun li Qin Wenzhao Dong Xinyou Zhang The Shennong Laboratory/Nation Industrial Innovation Centre for Bio-Breeding/Key Laboratory of Oil Crops in Huang-Huai-Hai Plains Ministry of Agriculture/Henan Provincial Key Laboratory for Oil Crops Improvement/Institute of Crop Molecular BreedingHenan Academy of Agricultural SciencesPostgraduate T&R Base of Zhengzhou UniversityZhengzhou 450002HenanChina School of Agricultural Sciences Zhengzhou UniversityZhengzhou 450001HenanChina School of life Science Zhengzhou UniversityZhengzhou 450001HenanChina Hebi Academy of Agricultural Sciences Hebei 458031HenanChina

Wild peanut(Arachis)species are promising sources of disease resistance for improving peanut *** objective of this study was to assess cross-compatibility among cultivated and wild peanuts in crosses between eight peanut cultivars and 27 wild species carrying the A,B,E,Ex,F,K,P,and H *** culture and chromosome doubling led to polyploids representing hybrids between cultivated peanut and ***,***,***,***,and *** first two showed greater resistance to bacterial wilt than their cultivated *** markers were developed for verifying the hybrids and for identifying translocation or introgression lines with alien chromosome fragments.

关键词： Peanut Wild species Cross compatibility Polyploids Bacterial wilt

Potential Challenges and Food Security Responses to Climate Change in China and Mongolia in the Post-COP28 Era

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Journal of Resources and Ecology 2025年第1期16卷 22-35页

作者： CHEN Jiannan Faith Ka shun CHAN WANG Jiayu FENG meili WANG Zilin Ochir ALTANSUKH SHAO Yating li Pengfei WANG School of Human Settlements and Civil Engineering Xi’an Eurasia UniversityXi’an 710054China College of Geomatics Xi’an University of Science and TechnologyXi’an 710054China School of Geographical Sciences University of Nottingham Ningbo ChinaNingboZhejiang 315100China Water@Leeds Research Institute and School of Geography University of LeedsLeeds LS29JTUK Research Centre for Intelligent Management&Innovation Development/Research Base for Shenzhen Municipal Policy&Development Southern University of Science and TechnologyShenzhenGuangdong 518000China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamenFujian 361021China Department of Environment and Forest Engineering School of Engineering and Technology and Environmental Engineering LaboratoryNational University of MongoliaUlaanbaatar 14201Mongolia State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China

After the COP28 Conference,many countries are increasingly concerned about their future practices regarding food *** North Asia,the Northeast China is the major food production base for the *** the border,the economy of Mongolia is heavily reliant on agricultural production and animal *** recent years,climatic extremes such as droughts and floods,combined with human-induced overgrazing,have posed alarming threats to food *** review illustrates the challenges and constraints these two countries are facing due to climate changes and summarizes the existing measures and established programs in both ***,we develop the“climate resilient agriculture”(CRA)framework for improving agricultural *** framework emphasizes the importance of international institutions,such as the World Bank,and developed countries to provide more financial and technological support to bolster climate resilience in Northern ***,we conclude by encouraging cross-border co-production and collaborations among governments to implement the CRA framework to tackle future climatic challenges.

关键词： agricultural sensitivity climatic extremes climate resilient agriculture(CRA) food security China and Mongolia

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包衣玉米种子中农药检测及基质效应的探讨

农药 2025年第1期64卷 29-33,39页

作者：罗雪婷吴迪尹硕李锦崔美丽李秋梅潘洪吉北京市植物保护站北京100029 北京市昌平区植保植检站北京102211

[目的]采用高效液相色谱仪结合QuEChERS方法,建立一种同时测定包衣玉米种子中9种农药的检测方法。[方法]样品用乙腈提取,以PSA和C18组合吸附剂净化;梯度洗脱,乙腈-甲醇(体积比1∶1)和水作为流动相,C18色谱柱分离,PDA检测器,外标法定量。... 详细信息

[目的]采用高效液相色谱仪结合QuEChERS方法,建立一种同时测定包衣玉米种子中9种农药的检测方法。[方法]样品用乙腈提取,以PSA和C18组合吸附剂净化;梯度洗脱,乙腈-甲醇(体积比1∶1)和水作为流动相,C18色谱柱分离,PDA检测器,外标法定量。[结果]9种目标化合物在0.2~100 mg/L范围内线性关系良好(r>0.999);在5~350 mg/kg添加水平下,平均回收率为80.54%~98.73%,RSD为0.71%~2.42%。同时对不同质量浓度的基质效应展开研究,9种农药基质效应均不明显,可直接使用标准溶液定量。[结论]该方法简便、高效、快速,填补了国内包衣玉米种子中农药检测的研究空白,并为包衣玉米种子的质量控制提供了一种可靠的检测方法。同时,该方法可推广应用于其他种子和农药残留检测,具有一定的推广和应用价值。

关键词：基质效应 QuEChERS 高效液相色谱仪包衣玉米种子

Strong exciton-photon interaction and lasing of two-dimensional transition metal dichalcogenide semiconductors

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Nano Research 2021年第6期14卷 1937-1954页

作者： liyun Zhao Qiuyu Shang meili li Yin liang Chun li Qing Zhang Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing100871China

Two-dimensional(2D)transition metal dichalcogenide(TMDC)semiconductors not only hold great promises for the development of ultra-thin optoelectronic devices with low-energy consumption,but also provide ideal platforms to explore and tailor light-matter interaction,e.g.,the exciton-photon interaction,at the atomic level,due to their atomic thickness,large exciton binding energy,and unique valley *** recent years,the exciton-photon interactions in TMDC semiconductor microcavities,including the strong exciton-photon coupling and lasing,have drawn increasing attention,which may open up new application prospects for transparent,on-chip coherent,and quantum light ***,we review the research progresses of strong exciton-photon interaction and lasing of TMDC ***,we introduce the electronic structure,exciton,and emission properties of semiconducting TMDCs in the weak exciton-photon coupling ***,the progresses on strong exciton-photon interaction and exciton-polaritons of these TMDCs are discussed from the aspects of photophysics,materials and fabrications,spectroscopies,and ***,the progresses on TMDC lasers are introduced in the aspects of cavity types and materials,and finally,the challenges and prospects for these fields are discussed.

关键词： transition metal dichalcogenides light-matter interaction strong exciton-photon interaction lasing

高通量固相萃取-超高效液相色谱-串联质谱法测定血清中17种全氟/多氟烷基化合物

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色谱 2025年第3期43卷 252-260页

作者：林强王健李晶晶苏东霞李美丽王佳牛宇敏邵兵北京市延庆区疾病预防控制中心北京102100 北京市延庆区永宁社区卫生服务中心北京102100 北京市疾病预防控制中心食物中毒诊断溯源技术北京市重点实验室北京100013 首都医科大学公共卫生学院北京100069

全氟烷基和多氟烷基化合物(PFASs)因其持久性、毒性和容易富集等特点,成为国内外广泛关注的一类新污染物。开展人体内PFASs的生物监测和暴露评估对于评估这些化学物质对人体健康的风险具有重要意义。因此亟需开发准确灵敏、方便快捷的... 详细信息

全氟烷基和多氟烷基化合物(PFASs)因其持久性、毒性和容易富集等特点,成为国内外广泛关注的一类新污染物。开展人体内PFASs的生物监测和暴露评估对于评估这些化学物质对人体健康的风险具有重要意义。因此亟需开发准确灵敏、方便快捷的检测方法。本研究采用自制的不需要活化、平衡的直通式HMR固相萃取柱净化样本,结合超高效液相色谱-串联质谱(UHPLC-MS/MS),建立了血清中17种PFASs的检测方法。50μL血清样本在HMR固相萃取柱中用400μL乙腈提取(每次200μL)并净化2次后,使用Poroshell 120 EC-C18色谱柱(100 mm×3 mm,2.7μm)分离,以5 mmol/L乙酸铵水溶液和甲醇为流动相进行梯度洗脱,ESI-离子源电离,采用多反应监测模式检测,同位素内标法定量。结果表明,17种PFASs在相应质量浓度范围内线性关系良好(r^(2)>0.995),检出限为3.6~14 ng/L,定量限为11~42 ng/L。血清样本加标回收率为89.3%~110.2%,日内相对标准偏差(RSD)为2.5%~9.8%,日间RSD为3.6%~10.2%。将方法应用于20份人体血清样品的检测,结果显示17种化合物均有检出。本方法仅需50μL血清样品,可以在HMR固相萃取柱中一步实现提取和净化,且固相萃取过程可以实现与96孔板的适配。方法操作简便,灵敏度高,样本用量少,检测效率高,适用于人群血清样本中PFASs的大规模监测及暴露评估。

关键词：固相萃取超高效液相色谱-串联质谱法全氟/多氟烷基化合物血清

Resistance to salt stresses by aerobic granular sludge:sludge property and microbial community

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Frontiers of Environmental Science & Engineering 2024年第8期18卷 107-116页

作者： Xiao Wu Hui li meili Wang Tianying Zhang Jiawei li Yongdi liu Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission School of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041China Institute for Environmental Pollution and Health School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China School of life Sciences Southwest UniversityChongqing 400715China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Institute of Qinghai-Tibetan Plateau Southwest Minzu UniversityChengdu 610041China

Saline wastewater is regarded as a challenge for wastewater treatment plants because high-salinity conditions negatively affect on traditional biological *** granular sludge(AGS)has gained attention as a promising technology for saline wastewater treatment because of its compact structure and the ability to withstand toxic ***,this study investigated the saltresistance performance,sludge properties and microbial community of AGS under low-salinity and high-salinity conditions,with the saline concentrations ranging from 0 to 50 g/*** results showed that AGS could withstand long-term saline stresses,and the maximum salinity reached 50 g/L within 113 *** salinities of 10,30,and 50 g/L,the chemical oxygen demand(COD)removal efficiencies were 90.3%,88.0%and 78.0%,*** also its maintained strength and aggregation at salinities of 10 and 30 g/*** of extracellular polymeric substances(EPS)by non-halophilic bacteria that enhanced sludge *** compact structure that ensured the microorganisms bioactivity helped to remove organic matters under salinities of 10 and 30 g/*** a salinity of 50 g/L,moderately halophilic bacteria,including Salinicola,Thioclava,Idiomarina and Albirhodobacter,prevailed in the *** dominant microbial communities shifted to moderately halophilic bacteria,which could maintain aerobic granular stabilization and remove organic matters under 50 g/L *** results in this study provide a further explanation for the long-term operation of AGS for treating saline wastewater at different *** is hoped that this work could bring some clues for the mystery of salt-resistance mechanisms.

关键词： Aerobic granular sludge Long-term saline stresses Performance Sludge property Microbial community

Synthesis and Photochromism of Novel Spiro（indoline-2,3＆#39;-naphtho [2,1-b] [1,4] oxazine）

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Chemical Research in Chinese Universities 2015年第3期31卷 357-361页

作者： li Hong PANG meili GUO Xinfu MENG Jiben Department of Chemistry Nankai University Tianjin 300071 P.R.China

A series of novel spirooxazine（SPO） derivatives containing nitrogen heterocycles was synthesized and characterized by 1H NMR spectra, Fourier transform infrared（FTIR） spectra, mass spectra（MS） and elemental analy- sis, and their photochromic behaviors were fully investigated in solvents and polymer media. In solvents, they dis- played excellent photochromism properties such as high photochromic response and fast thermal bleaching rate. Es- pecially, compounds 1 and 4 exhibited strong fluorescence intensities in dichloromethane solution. It was additionally found that compound 4 showed high fatigue resistence in poly（methyl methacrylate）（PMMA） film, and the thermal decay curves were fitted with biexponential function in PMMA film.

关键词： Spirooxazine Photochromism Acidichromism Fatigue resistance

Direct hydrothermal synthesis and magnetic property of titanate nanotubes doped magnetic metal ions

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Journal of University of Science and Technology Beijing 2008年第5期15卷 644-648页

作者： meili Wang Gongbao Song Jian li Landong Miao Baoshu Zhang School of Materials Science and Engineering Southwest University of Science and Technology Mianyang 621002 China

Pure titanate nanotubes and titanate nanotubes doped with Fe^3＋/Ni^2＋/Mn^2＋ ions were synthesized by the hydrothermal method. In this process,titanate nanotubes were first prepared synchronously with doping Fe^3＋/Ni^2＋/Mn^2＋ ions. The morphology,structure,thermal stability and magnetic property of titanate nanotubes were characterized by X-ray diffraction （XRD）,transmission electron microscope （TEM）,and magnetic measurement. The titanate nanotubes transformed into the anatase titania nanocrystals,and further the mixture of anatase and rutile titania along with increasing temperature. The results indicate that the titanate nanotubes doped with Fe^3＋/Ni^2＋/Mn^2＋ ions are paramagnetic behaviors.

关键词： titanate nanotubes direct hydrothermal synthesis doping magnetic property