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Analysis of b→cτν¯_(τ)anomalies using weak effective Hamiltonian with complex couplings and their impact on various physical observables

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Chinese Physics C 2024年第8期48卷 56-75页

作者： muhammad Arslan Tahira Yasmeen Saba Shafaq Ishtiaq Ahmed muhammad Jamil aslam Department of Physics Quaid-i-Azam UniversityIslamabad 45320Pakistan Department of Physics International Islamic UniversityIslamabad 44000Pakistan National Center for Physics Islamabad 44000Pakistan

Recently,the experimental measurements of the branching ratios and different polarization asymmetries for processes occurring through flavor-changing-charged current(b→cτν¯_(τ))transitions by BABAR,Belle,and LHCb have revealed some significant differences from the corresponding Standard Model(SM)*** has triggered an interest to search for physics beyond the SM in the context of various new physics(NP)models and using the model-independent weak effective Hamiltonian(WEH).Assuming left-handed neutrinos,we add the dimension-six vector,(pseudo-)scalar,and tensor operators with complex Wilson coefficients(WCs)to the SM *** 60%,30%,and 10%constraints resulting from the branching ratio of B_(c)→τν¯_(τ),we reassess the parametric space of these new physics WCs accommodating the current anomalies based on the most recent HFLAV data of R_(τ/μ,e)(D)and R_(τ/μ,e)(D^(*))and Belle data of F_(L)(D^(*))and P_(τ)(D^(*)).We find that the allowed parametric region of left-handed scalar couplings strongly depends on the constraints of the B_(c)→τν¯_(τ)branching ratio,and the maximum pull from the SM predictions results from the<60%branching ratio ***,the parametric region changes significantly if we extend the analysis by adding LHCb data of R_(τ/μ)(J/ψ)and R_(τ/ℓ)(Λ_(c)).Furthermore,due to the large uncertainties in the measurements of R_(τ/μ)(J/ψ)and R_(τ/ℓ)(X_(c)),we derive the sum rules which complement them with R_(τ/μ,e)(D)and R_(τ/μ,e)(D^(*)).Using the best-fit points of the new complex WCs along with the latest measurements of R_(τ/μ,e)(D(^(*))),we predict the numerical values of the observable R_(τ/ℓ)(Λ_(c)),R_(τ/μ)(J/ψ),and R_(τ/ℓ)(X_(c))from the sum *** simultaneous dependence of abovementioned physical observables on the NP WCs is established by plotting their correlation with R_(D) and R_(D^(*)),which are useful to discriminate between various NP *** find that the most significant impact of NP results from the WC C^(S)_(L)=4C^(T).Fi

关键词： B meson anomalies new physics complex coupling HFLAV

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Carbon Dioxide （CO2） Hydrogenation with Cerium Oxide-Based Composite

Carbon Dioxide （CO2） Hydrogenation with Cerium Oxide-Based...

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作者： muhammad Usman aslam（乌斯曼）中国石油大学(北京)

学位级别：硕士

Cerium oxide（CeO）based catalyst have emerged as promising materials for the catalytic hydrogenation of carbon dioxide（CO）,a vital process in the quest to mitigate climate change and produce valuable chemicals and *** provides a critical development in CeO-based catalysts for *** unique specification of CeO,such as high oxygen storage capacity,redox properties,and surface oxygen vacancies,make it an excellent candidate for *** interplay between CeOand COpromotes the activation of CO,facilitating its conversion to valuable ***,the synergistic effects of metal nanoparticles,typically supported on CeO,further enhance catalytic *** crucial factors influencing CeO-based catalyst activity include metal loading,type,support morphology,and reaction *** highlights the various reaction pathways,such as the hydrogenation of carbon dioxide（CO）to methane（CH）and Ethane（CH）,elucidating the role of CeOin promoting specific product ***,the abstract touches upon the challenges and prospects of CeO-based catalysts for COhydrogenation,including catalyst stability,poisoning,and potential applications in renewable energy and chemical *** techniques,such as advanced characterization methods and catalyst design,are essential to address these challenges and unlock the full potential of CeO-based *** conclusion,CeO-based catalysts have shown great promise in COhydrogenation,with their exceptional properties and tenability offering a path towards sustainable carbon *** R&D in this area is essential to harness the full potential of CeO-based catalysts and contribute to a greener and more sustainable future.

关键词： Carbon dioxide Cerium oxide hydrogenation Thermal catalysis Photo catalysis Conversion Selectivity Yield

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Analysis of b→cτ■ anomalies using weak effective Hamiltonian with complex couplings and their impact on various physical observables

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Chinese Physics C 2024年第8期 59-78页

作者： muhammad Arslan Tahira Yasmeen Saba Shafaq Ishtiaq Ahmed muhammad Jamil aslam Department of Physics Quaid-i-Azam University Department of Physics International Islamic University National Center for Physics

Recently,the experimental measurements of the branching ratios and different polarization asymmetries for processes occurring through flavor-changing-charged current（b→cτvτ）transitions by BABAR,Belle,and LHCb have revealed some significant differences from the corresponding Standard Model（SM） *** has triggered an interest to search for physics beyond the SM in the context of various new physics（NP） models and using the model-independent weak effective Hamiltonian（WEH）.Assuming left-handed neutrinos,we add the dimension-six vector,（pseudo-）scalar,and tensor operators with complex Wilson coefficients（WCs） to the SM *** 60%,3 0%,and 10% constraints resulting from the branching ratio of Bc→τvτ,we reassess the parametric space of these new physics WCs accommodating the current anomalies based on the most recent HFLAV data of Rτ/μ,e（D） and Rτ/μ,e（D*） and Belle data of FL（D*） and Pτ（D*）.We find that the allowed parametric region of lefthanded scalar couplings strongly depends on the constraints of the Bc→τvτbranching ratio,and the maximum pull from the SM predictions results from the <60% branching ratio ***,the parametric region changes significantly if we extend the analysis by adding LHCb data of Rτ/μ（J/ψ） and Rτ/l（Λc）.Furthermore,due to the large uncertainties in the measurements of Rτ/μ（J/ψ） and Rτ/l（Xc）,we derive the sum rules which complement them with Rτ/μ,e（D） and Rτ/μ,e（D*）.Using the best-fit points of the new complex WCs along with the latest measurements of Rτ/μ,e(D（*）),we predict the numerical values of the observable Rτ/l（Λc）,Rτ/μ（J/ψ）,and Rτ/l（Xc） from the sum *** simultaneous dependence of abovementioned physical observables on the NP WCs is established by plotting their correlation with RDand RD*,which are useful to discriminate between various NP *** find that the most significant impact of NP results from the WC CLS=***,we study the impact of these NP couplings on various angular and CP triple product asym

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Effect of Light Emitting Diodes (LEDs) on Growth, Mineral Composition, and Nutritional Value of Wheat & Lentil Sprouts

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1117-1128页

作者： Abdul Momin Amana Khatoon Wajahat Khan Dilsat Bozdoğan Konuşkan muhammad Mudasar aslam muhammad Jamil Shafiq Ur Rehman Baber Ali Alevcan Kaplan Sana Wahab muhammad Nauman Khan Sezai Ercisli Mohammad Khalid Al-Sadoon Department of Botany Kohat University of Science&TechnologyKohat26000Pakistan Department of Food Engineering Faculty of AgricultureHatay Mustafa Kemal UniversityHatay31000Türkiye Department of Botany University of Science&TechnologyBannu28100Pakistan Department of Biotechnology and Genetic Engineering Kohat University of Science&TechnologyKohat26000Pakistan Department of Biology University of HaripurKhyber Pakhtunkhwa22620Pakistan School of Science Western Sydney UniversityPenrithNew South Wales2151Australia Department of Crop and Animal Production Sason Vocational SchoolBatman UniversityBatman72060Türkiye Department of Plant Sciences Quaid-i-Azam UniversityIslamabad45320Pakistan Department of Botany Islamia College PeshawarPeshawar25120Pakistan Department of Horticulture Agricultural FacultyAtaturk UniversityErzurum25240Türkiye HGF Agro Ata TeknokentErzurumTR-25240Türkiye Department of Zoology College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

Sprouts are ready-to-eat and are recognized worldwide as functional components of the human *** advances in innovative agricultural techniques could enable an increase in the production of healthy *** use of light-emitting diode(LED)in indoor agricultural production could alter the biological feedback loop,increasing the functional beneﬁts of plant foods such as wheat and lentil sprouts and promoting the bioavailability of *** effects of white(W),red(R),and blue(B)light were investigated on the growth parameters and nutritional value of wheat and lentil *** the laboratory,seeds were sown under three different LED treat-ments:white,red,and blue light,while normal incandescent light served as a *** seed germina-tion improved by 18.34%and 12.67%for wheat and 18.34%and 12.67%for lentil sprouts under LED treatments R and B,*** increase in total soluble protein and sugar by 33.4%and 9.23%in wheat and by 31.5%and 5.87%in lentils was observed under the R LED *** C concentrations in wheat and lentils were signiﬁcantly increased by R LED compared to all other *** parameters,including potassium and sodium concentrations,were signiﬁcantly increased under red and blue light compared to the control;white light,on the other hand,signiﬁcantly decreased all these *** to the experimental data,red and blue LED light could be beneﬁcial in the production of functional wheat and lentil sprouts with high nutrient concentrations.

关键词： Growth parameters LED nutritional value sprouts total soluble proteins

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光竞争对杉木幼苗生长、生物量分配及叶片化学计量特征的影响

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西北林学院学报 2024年第05期39卷 168-175页

作者：黄健吴凯 muhammad Ahtesham aslam 黄勇来马祥庆吴鹏飞福建农林大学林学院国家林业和草原局杉木工程技术研究中心福建建瓯市林业局种苗站

通过研究杉木幼苗在不同光竞争条件下的生长特性及叶片C、N、P化学计量响应策略，以探究光竞争环境下杉木叶片营养利用及生长适应性规律。选择生长均一杉木无性系幼苗，采用室内盆栽试验，通过调整相邻盆栽容器高度差以模拟相邻杉木获... 详细信息

通过研究杉木幼苗在不同光竞争条件下的生长特性及叶片C、N、P化学计量响应策略，以探究光竞争环境下杉木叶片营养利用及生长适应性规律。选择生长均一杉木无性系幼苗，采用室内盆栽试验，通过调整相邻盆栽容器高度差以模拟相邻杉木获得不同光资源优势，形成具有明显光资源竞争优势植株(优势木)及竞争劣势的相邻植株(竞争木),根据调整后的高度差共设置3个光竞争强度：强度光竞争(高度差0 cm)、中度光竞争(高度差8 cm)、轻度光竞争(高度差16 cm),通过测定分析光竞争模拟处理1 a后参试幼苗苗高和地径、各器官生物量以及叶片C、N、P含量的差异性，分析各元素间化学计量比特征。结果表明，随着光竞争强度的减小，竞争木苗高比优势木高6.04%,地径比优势木小17.51%,根冠比增大，根系生物量分配比例增大至40.0%。随着光竞争强度的减小，竞争木植株叶片N含量增多达21.63 g/kg;优势木叶片C、P含量变化趋势相同，均随光竞争强度的减小先减小后增大，且显著大于竞争木(P<0.05);优势木C/N、C/P均随着光竞争强度的减小先增大后减小，竞争木C/P随光竞争强度的减小而增大。优势木叶生物量与P含量呈显著正相关，竞争木茎生物量与叶生物量呈显著正相关，与P含量呈显著正相关。不同光资源竞争位置杉木幼苗生长特性及叶片化学计量特征对不同光竞争强度适应策略有差异，表现为随光竞争强度的减小，处于光竞争劣势的竞争木生物量主要分配于地下根系，幼苗株形呈现“细高”的生长趋势；与之相反，光资源竞争的优势木则将生物量分配倾向于叶片，同时C、P含量明显减小，株形呈现“矮粗”的生长趋势。

关键词：光资源竞争杉木生态化学计量学生长特性根冠比

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芒果MiERF3基因的克隆及表达分析

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热带作物学报 2024年

作者：窦雅琪王倩 muhammad Muzammal aslam 邵远志李雯海南大学热带农林学院海南大学生命健康学院海南大学三亚南繁研究院

芒果(Mangifera indica L.)是海南省重要的热带水果之一，呼吸跃变型水果，乙烯在芒果后熟过程中扮演着至关重要的角色。研究指出，ERF转录因子是乙烯信号通路的关键下游成分，作为最大的转录因子家族之一，起到调节信号传导和生理反应... 详细信息

芒果(Mangifera indica L.)是海南省重要的热带水果之一，呼吸跃变型水果，乙烯在芒果后熟过程中扮演着至关重要的角色。研究指出，ERF转录因子是乙烯信号通路的关键下游成分，作为最大的转录因子家族之一，起到调节信号传导和生理反应的作用。为了探究ERF转录因子对采后芒果果皮色泽的影响，本研究以‘贵妃’芒果为研究对象，通过PCR克隆得到MiERF3基因，利用生物信息学方法分析MiERF3的基本理化特征、保守结构域、蛋白质结构、进化关系等；利用实时荧光定量PCR(qRT-PCR)技术分别对MiERF3基因在芒果不同组织部位和采后贮藏时期的特异性表达进行分析。结果可得，MiERF3长度为717 bp，编码238个氨基酸，蛋白分子式为C1130H1763N339O355S9，分子量为26.066 kDa，理论等电点为8.62，带30个正电残基，带27个负电残基，蛋白具有亲水性，结构不稳定；MiERF3蛋白不含信号肽，不含跨膜区域，磷酸化修饰以苏氨酸为主，包含一个AP2保守结构域，二级结构以61.67%的无规卷曲为主，还含有27.75%的α螺旋、3.96%的β折叠、6.61%的延长链，其三维结构模型包含有β折叠3个和α螺旋1个，符合AP2结构域的特征；多序列比对和motif分析结果表明MiERF3蛋白属于ERF亚家族成员；系统进化树分析结果表明与MiERF3蛋白亲缘关系最近的是同为漆树科植物的阿月浑子PvERF3-like；洋葱亚细胞定位及转录自激活检测结果显示MiERF3蛋白定位于细胞核且具有转录自激活活性；实时荧光定量分析表明，MiERF3基因的表达量在不同芒果部位表达情况不同，其中在芒果果实阳面果皮的表达量最高；且在芒果贮藏期间，其表达量有明显的先增后减的趋势，故而猜测MiERF3在果实成熟转色过程中起正调控作用。本研究为揭示ERF转录因子在芒果采后成熟衰老过程中的调控作用提供理论依据。

关键词：芒果 ERF 生物信息学分析表达分析

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荔枝LcWRKY47基因的克隆、亚细胞定位、表达及延缓果实褐变的功能初探

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热带作物学报 2024年

作者：程南谱王鑫 muhammad Muzammal aslam 邵远志李雯海南大学三亚南繁研究院海南大学热带农林学院海南大学食品科学与工程学院海南大学生命健康学院

荔枝（Litchi chinensis Sonn.）是亚热带地区重要的经济作物之一，但荔枝采后难贮存、易褐变，是目前保鲜过程中存在的最大问题之一。WRKY家族是植物中常见的一类转录因子，主要调控植物的逆境胁迫响应以及成熟衰老等生理过程。为了探... 详细信息

荔枝（Litchi chinensis Sonn.）是亚热带地区重要的经济作物之一，但荔枝采后难贮存、易褐变，是目前保鲜过程中存在的最大问题之一。WRKY家族是植物中常见的一类转录因子，主要调控植物的逆境胁迫响应以及成熟衰老等生理过程。为了探究WRKY对采后荔枝果实成熟衰老的影响，本研究以‘妃子笑’荔枝为试验对象，克隆出LcWRKY47基因，长度为1077 bp;LcWRKY47蛋白中含有WRKY保守结构域，二级结构以无规则卷曲为主，占比65.64%，三级结构主要为无规则卷曲和α螺旋。通过motif分析及多序列比对，发现LcWRKY47蛋白属于第Ⅱ类WRKY转录因子；系统进化分析树表明荔枝LcWRKY47与同为无患子科的龙眼DlWRKY47亲缘关系最近；亚细胞定位实验表明，LcWRKY47蛋白定位在细胞核中；RTqPCR分析表明，2 mmol/L草酸处理后LcWRKY47基因在荔枝果皮和果肉中的表达趋势相同，均先升后降，后期处理组表达量均显著高于对照组，推测草酸处理后该转录因子在荔枝果实成熟衰老过程中起正调控作用。过表达LcWRKY47基因发现，转基因果实中LcWRKY47的表达量显著高于对照果实，且转基因荔枝衰老褐变情况明显优于处理组。综上推测，LcWRKY47转录因子可能在荔枝衰老与褐变过程中起着一定的调节作用。

关键词：荔枝 WRKY转录因子基因克隆亚细胞定位表达分析

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黑芝麻种质资源苗期耐渍性鉴定及评价

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江西农业大学学报 2024年第1期46卷 13-24页

作者：万泽华华之梦王敏 muhammad Talha aslam 沈庭海卢维娜何斌方圣吴自明江西农业大学作物生理生态与遗传育种教育部重点实验室江西南昌330045 浙江省绍兴市农业科学研究院浙江绍兴312035

【目的】渍害是影响黑芝麻生长的主要障碍因素之一,鉴定黑芝麻种质资源苗期耐渍性,确定可靠的评价指标,为耐渍黑芝麻品种的选育和栽培提供理论依据。【方法】以52份黑芝麻种质资源为试验材料,设置苗期渍水7 d处理,测定存活率、株高和根... 详细信息

【目的】渍害是影响黑芝麻生长的主要障碍因素之一,鉴定黑芝麻种质资源苗期耐渍性,确定可靠的评价指标,为耐渍黑芝麻品种的选育和栽培提供理论依据。【方法】以52份黑芝麻种质资源为试验材料,设置苗期渍水7 d处理,测定存活率、株高和根长等7个苗期指标,计算各指标的耐渍系数,采用主成分分析、隶属函数分析、聚类分析、相关性分析和逐步回归分析,将不同黑芝麻种质资源进行耐渍性综合评价及指标筛选。【结果】主成分分析法将7个指标简化为4个相互独立的综合指标,能够包含全部信息的79.25%;利用隶属函数法计算耐渍性综合评价值,并对其进行聚类分析,将52份黑芝麻品种划分为三大类,第一类为高度耐渍品种共5份,第二类为中度耐渍品种共39份,第三类为渍害敏感品种共8份。相关性分析表明株高、根长、地上部生物量和地下部生物量为综合评价值的主要影响因子,且各指标间也有不同程度的相关性。利用回归分析法建立芝麻苗期耐渍性预测模型,并从7个鉴定指标中筛选出株高、根长、地上部生物量和地下部生物量4个关键指标。【结论】都昌黑芝麻、鄱阳黑芝麻、多蒴黑芝麻、星子黑芝麻和17-50为高度耐渍品种。株高、根长、地上部生物量和地下部生物量可作为快速鉴定芝麻苗期的耐渍性的关键指标。

关键词：黑芝麻苗期耐渍性主成分分析聚类分析综合评价

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SI Engine Fueled with Gasoline, CNG and CNG-HHO Blend: Comparative Evaluation of Performance, Emission and Lubrication Oil Deterioration

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Journal of Thermal Science 2021年第4期30卷 1199-1211页

作者： USMAN muhammad HAYAT Nasir BHUTTA muhammad Mahmood aslam Department of Mechanical Engineering University of Engineering and TechnologyLahore 54890Pakistan

Hydroxy gas (HHO) is one of the potential alternative fuels for spark ignition (SI) engine,notably due to simultaneous increase in engine performance and reduction in exhaust ***,impact of HHO gas on lubrication oil for longer periods of engine operation has not yet been *** study focuses on investigation of the effect of gasoline,CNG and CNG-HHO blend on lubrication oil deterioration along with engine performance and emissions in SI *** unit produces HHO gas at 4.72 L/min by using 6 g/L of KOH in the aqueous *** was supplied to the test engine at a pressure of 0.11 MPa using an electronically controlled solenoid *** tests were carried out at different speeds at 80%open throttle condition and various performance parameters such as brake power (BP),brake specific fuel consumption(BSFC),brake thermal efficiency (BTE),exhaust gas temperature and exhaust emissions (HC,CO_(2),CO and NO_(x))were *** addition,various lubrication oil samples were extracted over 120 h of engine running while topping for drain out volume and samples were analyzed as per ASTM ***-HHO blend exhibited better performance i.e.,15.4%increase in average BP in comparison to CNG,however,15.1%decrease was observed when compared to ***-HHO outperformed gasoline and CNG in the case of HC,CO_(2),CO and brake specific fuel consumption (31.1%decrease in comparison to gasoline).On the other hand,CNG-HHO produced higher average NO_(x) (12.9%) when compared to CNG ***,lubrication oil condition(kinematic viscosity,water contents,flash point and total base number (TBN)),wear debris (Iron (Fe),Aluminum(Al),Copper (Cu),Chromium (Cr)) and additives depletion (Zinc (Zn),Calcium (Ca)) presented a significant degradation in the case of CNG-HHO blend as compared to gasoline and *** oil analyses illustrated 19.6%,12.8%and 14.2%decrease in average viscosity,flash point and TBN for CNG-HHO blend ***,

关键词： spark ignition engine compressed natural gas hydrogen lubrication oil deterioration emission

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Response of Rice Cultivars to Elevated Air Temperature and Soil Amendments: Implications towards Climate Change Adaptations and Mitigating Global Warming Potentials

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American Journal of Climate Change 2024年第3期13卷 406-426页

作者： muhammad aslam Ali S. K. Md. Fazlay Rabbi Md. Abdul Baten Hafsa Jahan Hiya Shah Tasdika Auyon Md. Shamsur Rahman Deboki Kundu Khairul Amin Sanjit Chandra Barman Tanver Hossain Fariha Binte Nobi Department of Environmental Science Bangladesh Agricultural University Mymensingh Bangladesh Department of Environmental Science and Disaster Management Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gopalganj Bangladesh Department of Agricultural Extension Mymensingh Region Mymensingh Bangladesh

Global mean surface air temperature is expected to increase 1.1˚C - 6.4˚C by the end of 21st century which may affect rice productivity and methane emissions in the future climate. This experiment was conducted to investigate the response of rice cultivars to elevated air temperature (+1.5˚C higher than ambient) and soil amendments in regards to rice yield, yield scaled methane emissions and global warming potentials. The experimental findings revealed that replacement of inorganic fertilizers (20% - 40% of recommended NPKS) with Vermicompost, Azolla biofertilizer, enriched sugarcane pressmud, rice husk biochar and silicate fertilization increased rice yield 13.0% - 23.0%, and 11.0% - 19.0% during wet aman and dry boro season, respectively. However, seasonal cumulative CH4 fluxes were decreased by 9.0% - 25.0% and 5.0% - 19.0% during rainfed wet aman and irrigated dry boro rice cultivation, respectively with selected soil amendments. The maximum reduction in seasonal cumulative CH4 flux (19.0% - 25.0%) was recorded with silicate fertilization and azolla biofertilizer amendments (9.0% - 13.0%), whereas maximum grain yield increment 10.0 % - 14.0% was found with Vermicompost and Sugarcane pressmud amendments compared to chemical fertilization (100% NPKS) treated soils at ambient air temperature. However, rice grain yield decreased drastically 43.0% - 50.0% at elevated air temperature (3˚C higher than ambient air temperature), eventhough accelerated the total cumulative CH4 flux as well as GWPs in all treatments. Maximum seasonal mean GWPs were calculated at 391.0 kg CO2 eq·ha−1 in rice husk biochar followed by sugarcane pressmud (mean GWP 387.0 kg CO2 eq·ha−1), while least GWPs were calculated at 285 - 305 kg CO2 eq·ha−1 with silicate fertilizer and Azolla biofertilizer amendments. Rice cultivar BRRI dhan 87 revealed comparatively higher seasonal cumulative CH4 fluxes, yield scaled CH4 flux and GWPs than BRRI dhan 71 during wet aman rice growing season;while BRRI dhan

关键词： Rice Paddy Soil Amendments CH4 Flux GWPs Elevated Air Temperature

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