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Genetic variability and trait association analysis in linseed (Linum usitatissimum L.) for yield and related traits

Oil Crop Science 2024年第3期9卷 151-159页

作者： yadav S.k. Singh N. yadav.h.k. CSIR- National Botanical Research Institute Rana Pratap Marg Lucknow 226001 UP India Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India

Diversity information mining about a crop for different attributes is an essential step for effective breeding programs. The present investigation evaluates the quantum of genetic variability and determines the relationship among the important agro-economic traits based on two years of phenotypic data of 210 accessions of linseed. The traits, capsule weight per plant, capsule per plant, husk weight per plant, and seed weight per plant exhibited comparatively higher genetic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV). In contrast, oil content and seed per capsule exhibited a lower value. The high magnitude of broad sense heritability was observed for all traits except seeds per capsule and husk weight per plant. The trait, capsules per plant, plant height, and days to 50% flowering showed high genetic advance coupled with high heritability. hierarchical cluster analysis grouped 210 accessions into six distinct clusters. Out of 210, 144 (68.57%) accessions were grouped into three clusters (I, II, and III), in which cluster-III was the largest, containing 64 accessions followed by cluster II and cluster-I. The highest inter-cluster distance was observed between clusters-I and V (127.85), while the lowest was between clusters-II and IV (27.09). The positive correlation of capsule weight per plant with the seed weight per plant and a negative correlation with the days to 50% flowering indicates that high yielding linseed varieties with early flowering/maturity could be developed through direct and indirect selection. Further, seed yield and oil content could be enhanced together as indicated by ghe positive association among these two important traits. In this study, high yielding accessions with moderate to high oil content such as GP36, GP31, GP14, GP54, GP26, GP24, GP34, GP21, GP37 and GP27 and early flowering (less than 70 days) accessions such as GP2, GP26, GP27, CG33, CG44, CG42, CG132, and CG31 identified as potential genetic mater

关键词： Dendrogram Genetic advance Genetic variability heritability Linseed PCA

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Colorimetric Sensor for Detection of Tabun Mimic Diethyl Cyanophosphonate

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Journal of Analysis and Testing 2024年第03期8卷 374-384页

作者： Madhu Bala Dheeraj Pandey Nikita Patel Sheetal yadav Abha Sharma Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research RaebareliTransit Campus

herein,a colorimetric chemosensor （probe 7） was designed and synthesized for sensing diethyl cyanophosphonate （DCNP）,a Tabun nerve agent *** sensitive,selective,fast response and photostable probe 7 in dimethylsulfoxide （DMSO）responded to DCNP at low concentrations with visual naked eye color change from pink to pale yellow and displayed unresponsive behaviour against various interferences except for copper ions,which can be di?erentiated by adding ethylene diamine where the yellow color persisted in the case of DCNP but turned to pink in the case of copper ***,the yellow aqueous solution of probe 7 at ph 10 and 12 turned colorless against the response of *** limit of detection（LOD） of probe 7 was found to be 50 nmol/L in an aqueous basic solution at ph 10 for the detection of *** formation of the cyclized product was elucidated by1h and31P NMR nuclear magnetic resonance (1h NMR,31P NMR),Fourier transform infrared spectroscopy （FTIR）,and high-resolution mass spectrometry （hRMS） ***?lter paper and silica plate loaded with probe 7 were fabricated for real-time and on-site detection of DCNP.

关键词： Chemosensor Colorimetric Fluorescence Tabun mimic

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Smart tailoring of molecular catalysts:Mounting approach to oxygen reduction reaction

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Journal of Materials Science & Technology 2024年第1期168卷 169-184页

作者： Anuj kumar Mohd Ubaidullah Guoxin Zhang Jasvinder kaur Saira Ajmal Mudassir hasan krishna kumar yadav hafiz M.Adeel Sharif Ram k.Gupta Ghulam Yasin Nano-Technology Research Laboratory Department of ChemistryGLA UniversityMathuraUttar Pradesh 281406India Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdaoShandong 266590China Institute for Advanced Study Shenzhen UniversityShenzhenGuangdong 518060China Department of Chemistry Kansas Polymer Research CenterPittsburg State UniversityPittsburgKS 66762United States Faculty of Science and Technology Madhyanchal Professional UniversityRatibadBhopal 462044India Environmental and Atmospheric Sciences Research Group Scientific Research CenterAl-Ayen UniversityThi-QarNasiriyah 64001Iraq Department of Chemical Engineering king khalid University Saudi Arabia Department of Chemistry School of SciencesIFTM UniversityMoradabadUttar Pradesh 244102India Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan 523808China School of Environment and Civil Engineering Dongguan University of TechnologyDongguanGuangdong 523808China

Efficient electrocatalytic rupture of energy-rich molecules(h_(2)and O_(2))is a green approach for gener-ating clean energy for modern *** this context,porphyry-type molecular electrocatalysts act intelligently toward oxygen reduction reaction(ORR),a fundamental process in fuel cells,due to their redox-rich chemistry,which involves core metal ions and macrocyclic *** concerned scientific community has tried many times to correlate the ORR intermediates with their formation kinetics and simplify the associated multi h+/e-stages during the ORR process,constructing several volcano plots be-tween catalytic Tafel data,turnover frequencies,and overpotentials for many *** the fact that many review articles on molecular electrocatalysts for ORR have been published,understanding the strategic implications and molecular catalyst intelligence towards homogenous ORR has been poorly *** review examined the relationships between volcano plots of current *** parameters and the Sabatier principle in order to explain the intelligence of molecular electrocatalysts and approaches for their creation,as well as the difficulties and potential prospects of molecular *** facts distinguish this review from previously published articles and will pique the scien-tific community’s interest in avoiding trial-and-error procedures for catalyst creation while also allowing for more exact evaluations of the molecular catalyst’s performance.

关键词： Electrocatalysis Molecular catalysts Oxygen reduction reaction Sabatier principle

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Numerical modelling of post-failure behaviors of coal specimens

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第2期16卷 514-531页

作者： Ajeet yadav Bhaskara Behera Gauri Shankar Prasad Singh Sanjay kumar Sharma Department of Mining Engineering Indian Institute of Technology(Banaras Hindu University)VaranasiUttar Pradesh221005India

A modelling approach consisting of best-fit relations to estimate the post-yield strength parameters is presented for simulating post-peak behavior beyond the point of residual strength of coal pillars having different w/h *** model was developed based on back-analysis of the complete stress-strain behavior of specimens belonging to six different Indian coal seams with different w/h ratios of 0.5 *** was found that the simultaneous degradation of the cohesion and friction angle of the Mohr-Coulomb rock material characterizes the post-peak strength behavior of the *** resulting expressions are simplistic as they require parameters that can be easily determined using uniaxial and triaxial compression ***,the developed model was validated by simulating the triaxial tests of coal specimens with different sizes under varying confining stresses and comparing its findings with the published test *** study showed that its implementation in the numerical model could reproduce laboratory-observed mechanical response,deformation behavior,and failure mechanism very closely.

关键词： Strain softening Dilatancy Interface Shape effect Residual strength

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Novel succinoylated carboxymethyl guar gum nanocarriers of glimepiride for controlling type-2 diabetes

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Medicine in Novel Technology and Devices 2024年第2期22卷 133-139页

作者： harsh yadav Biswajit Maji Sabyasachi Maiti Department of Pharmacy Indira Gandhi National Tribal UniversityAmarkantakMadhya PradeshIndia Department of Chemistry Indira Gandhi National Tribal UniversityAmarkantakMadhya PradeshIndia

In this study,guar gum(GG)was chemically modified to its carboxymethyl derivative,which was then esterified with octenyl succinic anhydride(OSA)using a nucleophilic catalyst 4-dimethylaminopyridine(DMAP)to render the derivative amphiphilic *** carboxymethyl guar gum(CMGG)and succinoylated CMGG was characterized using Fourier transform infrared spectroscopy(FTIR)*** amphiphilic CMGG synthesized using DMAP/OSA ratio of 0.5:1(CMGGOSA-I),was found to be *** amphiphilic guar gum self-assembled in water to form nanocarriers with mean diameter of 430 nm and zeta potential of19.0 *** electron microscope(TEM)image showed spherical nature of the developed CMGGOSA-I nano*** presence of amphiphilic CMGG,the aqueous solubility of glimepiride was enhanced by about *** nanocarriers released glimepiride in simulated gastrointestinal fluids for a period of more than 24 h,following higuchi's ***-Peppas modeling of the drug release data revealed that a combination of swelling and diffusion mechanism was operative in the event of drug *** streptozotocin-induced diabetic rat model,the nanocarriers outperformed pure drug suspensions in terms of anti-diabetic activity,which lasted up to 24 ***;the newly synthesized amphiphilic CMGG nanocarriers demonstrated controlled drug release properties and showed promise for controlling type-2 diabetes.

关键词： Guar gum Glimepiride Octenyl succinic anhydride Anti-diabetic efficacy

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Study of Structural, Optical, Electrical and Dielectric Properties of Gd-Doped ZnO Composites Synthesized by Solid State Reaction Method

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Open Journal of Composite Materials 2024年第2期14卷 91-108页

作者： Santosh kumar kundara kanhaiya Chawla Dinesh kumar yadav Chhagan Lal Balram Tripathi Narendra Jakhar Department of Physics University of Rajasthan Jaipur India Sw. P.N.k.S. Government PG College Dausa India Government PG College Pratapgarh India S.S. Jain Subodh PG (Autonomous) College Jaipur India

In this manuscript, we are reporting structural, bonding, optical, dielectric, and electrical properties of Gd-doped ZnO composite samples (Zn1−xGdxO, x = 0, 0.05, 0.10) prepared by solid-state reaction method. XRD spectra confirm the wurtzite hexagonal phase with a grain size distribution of 42 - 47 nm. The FT-IR spectra confirm bonding behavior like Zn-O, O=C=O, and O-h stretching modes. FESEM micrographs show that the grains of crystallites possess nearly spherical morphology. Optical absorption spectra confirm that the optical band gap decreases systematically from 3.19 eV to 3.15 eV for x = 0.0 to x = 0.10 samples. For all samples, PL spectra exhibited near-band emission, blue emission, and green emission peaks. The dielectric constant decreases as the applied frequency increases. hall effect results show that with increasing doping concentration of Gd, mobility and resistivity increase while bulk concentration decreases. Current-Voltage study shows that current increases when temperature is increased. Rare earth-doped ZnO is potential material used for optoelectronics and spintronics device applications. Properties of Gd-doped ZnO are studied by various research groups, but dielectric studies are limitedly reported. Therefore, the present research work aims to study the change of electrical, optical, and dielectric properties of Gd-doped ZnO for device applications.

关键词： ZnO:Gd Composites Optical Band Gap Green Emission Dielectric Constant

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Fabrication of Graphitic Carbon Nitride-Based Film:An Emerged highly Efficient Catalyst for Direct C-h Arylation under Solar Light

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Chinese Journal of Chemistry 2021年第3期39卷 633-639页

作者： Surabhi Chaubey Rajesh k.yadav Tae Wu kim Tara Chand yadav Abhishek kumar D.k.Dwivedi B.k.Pandey Atul P.Singh Department of Chemistry and Environmental Science Madan Mohan Malaviya University of TechnologyGorakhpur-273010U.PIndia Center for Nanomaterials and Chemical Reactions Institute for Basic Science(IBS)Daejeon 34141Republic of Korea Department of Chemistry Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Department of Biotechnology Indian Institute of Technology Roorkee-247667India Department of Chemistry Institute of ScienceBanaras Hindu UniversityIndia Department of Physics and Material Science Madan Mohan Malaviya University of TechnologyGorakhpur 273010U.PIndia Department of Chemistry Chandigarh UniversityMohaliIndia

Main observation and conclusion Photoredox C-h bond formation can proceed in aerobic environment under solar light and has therefore become ***-days,different types of expensive novel metal complexes and nanomaterials have been urbanized as photocatalysts for direct C-h bond formation in between derivatives of heteroarenes(hAs)and aryl diazonium *** photocatalysts,however,still suffer from poor stability,high cost,and ***,a graphitic carbon nitride-based fluorescein isothiocyanate(g-C_(3)N_(4)-FITC)film pho-tocatalyst has been reported,which shows ecellent light harvesting ability,and band gap suitability to catalyze the metal free direct C-h arylation of hAs under solar light at ambient ***,the g-C_(3)N_(4)-FITC film photocatalyst can be reused four times without significant loss of activity,confirming the excellent photocatalytic *** current strategy to constructa g-C_(3)N_(4)-FITC film photocatalyst for direct C-h arylation opens a new path towards replacing metal-based catalysts in fine chemical Sy nthesis.

关键词： Photocatalysis g-C_(3)N_(4)-FITC film photocatalyst C-h activation heteroarenes Cyclic voltammetry

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Extent of mismatch between the period of circadian clocks and light/dark cycles determines time-to-emergence in fruit flies

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Insect Science 2015年第4期22卷 569-577页

作者： Pankaj yadav Deepak Choudhury Madhumala k. Sadanandappa Vijay kumar Sharma Chronobiology Laboratory Evolutionary and Organismal Biology Unit Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560064 Kamataka India

Circadian clocks time developmental stages of fruit flies Drosophila melanogaster, while light/dark （LD） cycles delimit emergence of adults, conceding only during the ＂allowed gate.＂ Previous studies have revealed that time-to-emergence can be altered by mutations in the core clock gene period （per）, or by altering the length of LD cycles. Since this evidence came from studies on genetically manipulated flies, or on flies maintained under LD cycles with limited range of periods, inferences that can be drawn are limited. Moreover, the extent of shortening or lengthening of time-to-emergence re- mains yet unknown. In order to pursue this further, we assayed time-to-emergence of D. rnelanogaster under 12 different LD cycles as well as in constant light （LL） and constant dark conditions （DD）. Time-to-emergence in flies occurred earlier under LL than in LD cycles and DD. Among the LD cycles, time-to-emergence occurred earlier under T4-T8, followed by T36-T48, and then T12-T32, suggesting that egg-to-emergence duration in flies becomes shorter when the length of LD cycles deviates from 24 h, bearing a strong positive and a marginally negative correlation with day length, for values shorter and longer than 24 h, respectively. These results suggest that the extent of mismatch between the period of circadian clocks and environmental cycles determines the time-to-emergence in Drosophila.

关键词： circadian Drosophila light/dark regimes period time-to-emergence

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Strategies to modulate the intestinal microbiota and their effects on nutrient utilization, performance, and health of poultry

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Journal of Animal Science and Biotechnology 2019年第3期10卷 529-539页

作者： Sudhir yadav Rajesh Jha Department of human Nutrition Food and Animal Sciences College of Tropical Agriculture and Human Resources University of Hawaii at Manoa

Poultry is widely produced and consumed meat *** demand is expected to continue increasing to meet the animal protein requirement for ever-increasing human ***,the challenge that poultry scientists and industry face are to produce sufficient amount of poultry meat in the most efficient *** the past,using antibiotics to promote the growth of poultry and manage gut microbiota was a ***,due to concerns over potential fatalistic impacts on food animals and indirectly to humans,their use as feed additives are banned or regulated in several *** this changed context,several alternative strategies have been proposed with some success that mimics the functions of antibiotics as growth promoters and modulate gut microbiota for their beneficial *** include the use of probiotics,prebiotics,organic acids,and exogenous enzyme,among *** microbiota and their metabolic products improve nutrient digestion,absorption,metabolism,and overall health and growth performance of *** paper reviews the available information on the effect of feed additives used to modulate intestinal microbiota of poultry and their effects on overall health and growth *** these functions and interactions will help to develop new dietary and managerial strategies that will ultimately lead to enhanced feed utilization and improved growth performance of *** review will help future researchers and industry to identify alternative feed ingredients having properties like prebiotics,probiotics,organic acids,and exogenous enzymes.

关键词： Enzymes Microbiota Organic acids Poultry Prebiotics Probiotics

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Study of structural, electrical, and photoluminescent properties of SrCeO3 and Sr2CeO4

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Journal of Advanced Ceramics 2019年第3期8卷 377-388页

作者： Dharmendra yadav Upendra kumar Shail Upadhyay Department of Physics Indian Institute of Technology(BHU)

Phase pure powders of SrCeO3 and Sr2Ce O4 have been synthesized by calcination at 1000℃for 14 h via solid state ceramic ***/pellets of these samples have been obtained by sintering at 1200℃for 12 *** Rietveld refinement of X-ray diffraction(XRD)pattern of sintered powders confirmed orthorhombic structure of both the samples with space group Pnma and Pbam for SrCeO3 and Sr2CeO4,*** electron microscopic(SEM)studies indicated that both the compounds have dense microstructure,but morphology and size of the grains are *** impedance spectroscopy technique has been employed to study the relaxation *** conductivity of the samples has been measured in the temperature range of 200–600℃to understand the conduction *** activation energy for relaxation(Erelax)and DC conduction(Econd)are found to be the same for both the *** on the numerical value of activation energies,relaxation and conduction mechanism in both the samples are attributed to migration of doubly ionized oxygen vacancies(Vo··).Photoluminescence technique has been employed to confirm the existence of oxygen *** studies have indicated that migration of oxygen vacancies in Sr2CeO4 is occurring mainly along a and c direction,i.e.,via perovskite ***,the present work has clearly indicated that besides optical properties,electrical properties of Sr2CeO4 are also interesting and can be utilized for various applications such as oxide ion conduction electrolyte in solid oxide fuel cells(SOFCs).

关键词： Sr2CeO4 SrCeO3 impedance spectroscopy DC conductivity

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