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Effects of Root Growth of Deep and Shallow Rooting Rice Cultivars in Compacted Paddy Soils on Subsequent Rice Growth

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Rice science 2023年第5期30卷 459-472,I0022-I0024页

作者： md.Dhin islam Adam H.PRICE Paul D.HALLETT School of Biological Sciences University of AberdeenSt Machar DrAberdeen AB243UUthe United Kingdom Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur-1706Bangladesh

Rice is often grown as multiple seasons in one year,alternating between flooded and upland systems.A major constraint,introduced from the flooded system,is a plough pan that may decrease rooting depth and productivity of follow-on upland *** penetrating the plough pan under flooded rice system can leave a legacy of weaker root growth *** rooting rice cultivars could have a bigger impact,but no direct evidence is *** explore whether a deep rather than a shallow rooting rice cultivar grown in a flooded cropping cycle benefited deeper root growth of follow-on rice in an upland,reduced tillage cropping cycle,a simulated flooded paddy in greenhouse was planted with deep(Black Gora) and shallow(IR64) rooting cultivars and a plant-free *** plough pans were made in between the topsoil and subsoil to form different treatments with no plough pan(0.35 MPa),soft plough pan(1.03 MPa) and hard plough pan(1.70 MPa).After harvest of this ‘first season’ rice,the soil was drained and undisturbed to simulate zero-tillage upland and planted rice cultivar BRRI Dhan *** overall root length density(RLD),root surface area,the numbers of root tips and branching of BRRI Dhan 28 did not vary between plough pan and no plough pan *** with the shallow rooting rice genotype,the deep rooting rice genotype as ‘first season’ crop produced 19% greater RLD,34% greater surface area and 29% more branching of BRRI Dhan 28 in the *** the topsoil,however,BRRI Dhan 28 had 28% greater RLD,35% greater surface area and 43% more branching for the shallow rather than deep rooting genotype planted in the ‘first season’.The results suggested that rice cultivar selection for a paddy cycle affects root growth of a follow-on rice crop grown under no-till,with benefits to subsoil access from deep rooting cultivars and topsoil proliferation for shallow rooting cultivars.

关键词： plough pan root growth biopores crop rotation Oryza sativa preceding crop zero-tillage

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Two New Records of Snapper(Perciformes, Lutjanidae) from Saint Martin's Island, Bangladesh

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Journal of Ocean University of China 2021年第2期20卷 439-444页

作者： SARKAR Provakar islam md Jayedul HABIB AHMShafiullah NEOGI Amit Kumer HABIB Kazi Ahsan Department of Zoology Jagannath UniversityDhaka 1100Bangladesh Aquatic Bioresource Research Laboratory Department of Fisheries Biology and GeneticsSher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh Department of Fisheries Biology and Genetics Faculty of FisheriesAquaculture and Marine ScienceSher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh

The present work documented two snapper species, Lutjanus fulvus Forster, 1801 and Lutjanus erythropterus Bloch, 1790, recently collected from the Saint Martin's Island, Bay of Bengal, Bangladesh, during a survey on coral associated fishes of Bangladesh from July 2017 to September 2018. These two species were identified with morphological characteristics and by analyzing partial mitochondrial COI sequences. The document also included an updated checklist of snappers available in Bangladesh.

关键词： Lutjanus fulvus Lutjanus erythropterus DNA barcoding Bay of Bengal

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Nanophotonic-structured front contact for high-performance perovskite solar cells

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Science China Materials 2022年第7期65卷 1727-1740页

作者： md.Akhtaruzzaman Mohammad Ismail Hossain Mohammad Aminul islam md.Shahiduzzaman Ghulam Muhammad A.K.Mahmud Hasan Yuen Hong Tsang Kamaruzzaman Sopian Solar Energy Research Institute(SERI) Universiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Department of Applied Physics Hong Kong Polytechnic University(PolyU)KowloonHong KongChina Centre for Integrated Systems Engineering and Advanced Technologies(Integra) Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan Malaysia(UKM)43600 BangiSelangorMalaysia Graduate School of Pure and Applied Sciences University of TsukubaTsukubaIbaraki 305-8573Japan Department of Electrical Engineering Faculty of EngineeringUniversity of MalayaJalan Universiti50603 Kuala LumpurSelangorMalaysia Nanomaterials Research Institute(NanoMaRi) Kanazawa UniversityKakumaKanazawa 920-1192Japan Department of Computer Engineering College of Computer and Information SciencesKing Saud University11543 RiyadhSaudi Arabia Department of Electrical and Computer Engineering University of CaliforniaDavisCA 95616USA Institute of Sustainable Energy Universiti Tenaga Nasional(@The National Energy University)Jalan IKRAM-UNITEN43000 KajangSelangorMalaysia

We report the design of a nanophotonic metaloxide front contact aimed at perovskite solar cells(PSCs)to enhance optoelectronic properties and device stability in the presence of ultraviolet(UV)***-quality Cr-doped ZnO film was prepared by industrially feasible magnetron sputter deposition for the electron transport layer of *** a means,the influence of the Cr content on the film and device was systematically ***-depth device optics and electrical effects were studied using advanced three-dimensional opto-electrical multiphysics rigorous simulations,optimizing the front contact for realizing high *** numerical simulation was validated by fabricating PSCs optimized to reach high performance,energy conversion efficiency(ECE)=17.3%,open-circuit voltage(V_(OC))=1.08 V,short-circuit current density(J_(SC))=21.1 mA cm^(-2),and fillfactor(FF)=76%.Finally,a realistic front contact of nanophotonic architecture was proposed while improving broadband light absorption of the solar spectrum and light harvesting,resulting in enhanced quantum efficiency(QE).The nanophotonic PSC enables J_(SC)improvement by~17%while reducing the reflection by 12%,resulting in an estimated conversion efficiency over 23%.It is further demonstrated how the PSCs’UV-stability can be improved without considerably sacrificing optoelectronic *** of nanophotonic designed ZnO:Cr front contact,PSCs device,and fabrication process are described.

关键词： ZnO:Cr front contact magnetron sputtering perovskite solar cells UV stability optics and electrical effects

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AP-3 adaptor complex-mediated vesicle trafficking

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Biophysics Reports 2021年第2期7卷 91-100页

作者： Zhuo Ma md.Nur islam Tao Xu Eli Song National Laboratory of Biomacromolecules CAS Center for Excellence in Biomacromolecules Institute of Biophysics Chinese Academy of Sciences University of Chinese Academy of Sciences Guangzhou Regenerative Medicine and Health Guangdong Laboratory(Bioland Laboratory)

The transport of cargo proteins to specific subcellular destinations is crucial for the different secretory and endocytic traffic pathways. One of the most important steps in maintaining the accuracy of this process is the recruitment of adaptor protein(AP) complexes to the membrane for recognizing and packaging cargo proteins into nascent vesicles. Adaptor protein complex 3(AP-3) is a heterotetrametric complex implicated in the trafficking of cargo proteins from the trans-Golgi network(TGN) and/or endosomes to lysosomes or lysosome-related organelles(LROs). This complex is also involved in the biogenesis of synaptic vesicles(SVs) in neurons and of dense core vesicles(DCVs) in endocrine cells as well as in the recycling of receptors in immune cells and the regulation of planar cell polarity(PCP)proteins. Functional defects in AP-3 cause multiple abnormalities in cellular vesicle trafficking and related organelle function, leading to various disorders, such as Hermansky-Pudlak syndrome(HPS).However, the molecular mechanism underlying AP-3 has not been fully elucidated, and further investigations are needed to understand AP-3-mediated trafficking, its associated molecules and its related roles in inherited diseases. Here, we review the current understanding of AP-3 in cellular vesicle trafficking, especially focusing on mammalian systems.

关键词： Vesicle trafficking AP-3 Cargo sorting Disease/disorder

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Integration of ID and 3D modeling schemes to establish the Farewell Formation as a self-sourced reservoir in Kupe Field, Taranaki Basin, New Zealand

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Frontiers of Earth Science 2021年第3期15卷 631-648页

作者： S.M.Talha QADRI md Aminul islam Mohamad Ragab SHALABY Syed Haroon ALI Department of Earth Sciences University of TorontoToronto M5S2E8Canada Geosciences Program Faculty of ScienceUniversiti Brunei DarussalamBandar Seri Begawan BE 1410Negara Brunei Darussalam Geology Department Faculty of ScienceTanta UniversityTanta 31527Egypt Department of Earth Sciences University of SargodhaSargodha 40100Pakistan

Along with conventional methods,this paper proposed a method in which ID and 3D models are integrated to identify the self-sourced reservoir potential of the Farewell Formation in the Kupe Gas Field within the Taranaki Basin,New *** rock characteristics were evaluated at both field and basin scales by investigating source rock maturity,type of organic matter,and hydrocarbon generation potential by rock pyrolysis,using Rock-Eval 2 and *** ID thermal and burial history model established the rate of sedimentation and thermal history of the Kupe 4 *** characterization at field-scale was determined by seismic interpretation,well log analysis,and 3D structural and petrophysical *** sediments of the Farewell Formation contain types Ⅱ-Ⅲ(oil/gas prone)and type Ⅲ(gas prone)and have fair-to-excellent generation *** oxygen and hydrogen indices ranged from 3 to 476 mg C0_(2)/g TOC and 26 to 356 mg HC/g TOC,respectively,whereas the thermal maturity determined by vitrinite reflectance values ranged between 0.3%and 0.72%,indicating that the Farewell Formation is in immature-to-mature hydrocarbon generation ***,Farewell Formation was verified to be a good source ***,structural interpretations demonstrated the structural complexity of an extensional and contractional regime within the reservoir *** faults indicated a good reservoir property there with a trapping mechanism as well as migration paths.A well-log-based petrophysical analysis established the presence of up to 70%hydrocarbon saturation within the pore spaces of Farewell *** 3D models confirmed that the Farewell Formation has significant sand zones and hydrocarbon-saturated zones,thereby proving its very good reservoir *** has been proved that the ID and 3D structural schemes,integrated with geological techniques,was vital in identifying the Kupe Field as a self-sourced reservoir.

关键词： self-sourced reservoir Kupe Field Farewell Formation Taranaki Basin

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Households’ Willingness to Pay for Disaster Resilient Safe Drinking Water Sources in Southwestern Coastal Bangladesh

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International Journal of Disaster Risk Science 2019年第4期10卷 544-556页

作者： md.Sariful islam Sonia Afrin md.Nasif Ahsan Mohammed Ziaul Haider Tasnim Murad Mamun Debasish Kumar Das Economics Discipline Khulna UniversityKhulna 9208Bangladesh

Nonfunctionality of engineered water sources after two catastrophic cyclones—Sidr in November 2007 and Aila in May 2009—created acute scarcity of safe drinking water in coastal *** objective of this study was to estimate households’willingness to pay(WTP)for disaster resilient water sources in Dacope upazila of Khulna District in southwestern coastal *** applying the double bounded dichotomous contingent valuation method to a dataset of 250 randomly selected households,we found that the mean WTP is BDT 263 and that inaccessibility to functional safe drinking water sources is the most significant determining factor of households’*** mean WTP for a disaster resilient water source project in the study area,we measured a present value of aggregate WTP over project’s life span worth about BDT 624(USD 7.37)million,which is about14.30 times the present value of project’s aggregate establishment and maintenance ***,charging the local inhabitants a water tariff at mean WTP would lead to the exclusion of around 50%of the people from getting access to the improved water services or create a free riding *** simulation exercises this study determined that the socially optimal water tariff is BDT 50 per *** tariff would not only generate revenue of more than five times the project cost but would also create access to disaster resilient improved drinking water sources for almost 99%of the people.

关键词： Bangladesh Disaster resilient safe drinking water Double bounded contingent valuation Household willingness to pay

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Current scenario and challenges of plastic pollution in Bangladesh:a focus on farmlands and terrestrial ecosystems

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Frontiers of Environmental Science & Engineering 2023年第6期17卷 1-22页

作者： mdRaihanul islam Sumaiya Akter Ruponti mdAbdur Rakib Huy Quoc Nguyen Monjur Mourshed Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh Department of Microbiology Faculty of Biological Science and TechnologyJashore University of Science of TechnologyJashore 7408Bangladesh Faculty of Heat and Refrigeration Engineering The University of Danang—University of Science and TechnologyDanang 550000Vietnam Mechanical and Automotive Engineering School of EngineeringRMIT UniversityBundooraVictoria 3083Australia Department of Mechanical Engineering Rajshahi University of Engineering and Technology(RUET)Rajshahi 6204Bangladesh

Plastic is considered one of the most indispensable commodities in our daily *** the end of life,the huge ever-growing pile of plastic waste(PW)causes serious concerns for our environment,including agricultural farmlands,groundwater quality,marine and land ecosystems,food toxicity and human health *** of proper infrastructure,financial backup,and technological advancement turn this hazardous waste plastic management into a serious threat to developing countries,especially for Bangladesh.A comprehensive review of PW generation and its consequences on environment in both global and Bangladesh contexts is *** dispersion routes of PW from different sources in different forms(microplastic,macroplastic,nanoplastic)and its adverse effect on agriculture,marine life and terrestrial ecosystems are illustrated in this *** key challenges to mitigate PW pollution and tackle down the climate change issue is discussed in this ***,way forward toward the design and implementation of proper PW management strategies are highlighted in this study.

关键词： Plastic waste Farmlands Terrestrial ecosystem Marine life

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Multivariate morphometric investigation to delineate species diversity and stock structure of mud crab Scylla sp. along the coastal regions of Bangladesh

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Aquaculture and Fisheries 2021年第1期6卷 84-95页

作者： md Asaduzzaman Ismat Jahan Aysha Rahi Noor md Moudud islam md Moshiur Rahman Faculty of Fisheries Chattogram Veterinary and Animal Sciences UniversityKhulshi4225Bangladesh Fisheries and Marine Resource Technology Discipline Khulna UniversityKhulna9208Bangladesh

Despite the importance of mud crab species(genus Scylla)in both coastal aquaculture and artisanal fisheries,knowledge of the species diversity and stock structure of mud crab population for their sustainable management across the coastal region of Bangladesh remains ***,the present study was conducted to delineate the diversity and stock structure of mud crab species based on the 24 morphometric length measurements and 27 morphometric ratios data collected from the three coastal regions(Chittagong,Cox’s Bazar and Bagerhat)of *** on the taxonomic keys,majority of the species(about 82.4%)were identified as ***,while the remaining(about 17.6%)was *** consistent to our preliminary analysis,both the univariate proportion and multivariate analysis of the collected morphometric lengths and ratios data also distinctly divided the mud crabs population into two multivariate spaces as *** and *** the further analysis of the stock structure of these two species,data were subjected to the univariate ANOVA,multivariate ANOVA,Canonical Variate Analysis(CVA),and Principal Component Analysis(PCA)according to their collection *** plots of CVA scores between CV1 and CV2 and PCA scores between PC1 and PC2 showed that the individuals of both species clearly made clusters into three multivariate spaces with minimum overlaps according to their collection *** morphometric traits Linear Discriminant Function Analysis(LDFA),the average percentage of correctly classified(PCC)into the original groups of the *** and *** was 100%.For stock discrimination,the average PCC into their original groups of collection sites were 100%and 99%for the *** and ***,***,dendrogram based on the Euclidean distances consistently separated *** and *** and stock structures similar to other multivariate *** conclusion,our study shows that *** is the dominant mud crab speci

关键词： Mangrove crabs Morphometric traits Species delineation Discriminant function analysis Principal component analysis Univariate ANOVA

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Proposal for dispersion compensating square-lattice photonic crystal fiber

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Optoelectronics Letters 2021年第3期17卷 160-164页

作者： Ashraful Hossain Howlader md.Sherajul islam S.M.A.Razzak Department of Electrical and Electronic Engineering Rajshahi University of Engineering and TechnologyRajshahi 6204Bangladesh Department of Electrical and Electronic Engineering Khulna University of Engineering and TechnologyKhulna 9203Bangladesh Department of Electrical and Electronic Engineering Bangabandhu Sheikh Mujibur Rahman Science and Technology UniversityGopalganj 8100Bangladesh

A dispersion-compensating square-lattice photonic crystal fiber for broadband compensation which covers the S, C and L communication bands, i.e. wavelength ranging from 1 460 nm to 1 625 nm is proposed in this paper. Theoretically, it is shown a negative dispersion coefficient of about-595 ps/(nm·km) to-1 288 ps/(nm·km) over S to L bands and-975 ps/(nm·km) at the operating wavelength 1 550 nm. The relative dispersion slope is perfectly matched to that of conventional single-mode fiber of about 0.003 6 nm^(-1). Besides the proposed photonic crystal fiber shows the large nonlinear coefficient of 61.88 W/km at the operating wavelength of 1 550 nm. Moreover, the variation of structural parameters is also studied and discussed here.

关键词： fiber dispersion crystal

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Enhancement of Growth and Grain Yield of Rice in Nutrient Deficient Soils by Rice Probiotic Bacteria

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Rice science 2017年第5期24卷 264-273页

作者： md Mohibul Alam KHAN Effi HAQUE Narayan Chandra PAUL md Abdul KHALEQUE Saleh M. S. AL-GARNI Mahfuzur RAHMAN md Tofazzal islam Department of Biotechnology Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur 1706 Bangladesh Department of Biochemistry & Microbiology North South University Dhaka 1229 Bangladesh Department of Rural Development Administration Bioenergy Crop Research Institute Muan 534833 Republic of Korea Department of Biological Sciences King Abdulaziz University Jeddah 2589 Kingdom of Saudi Arabia West Virginia University Morgantown West Virginia 26505 USA

Plant associated bacteria are promising alternatives to chemical fertilizers for plant growth and yield improvement in an eco-friendly *** this study,rice associated bacteria were isolated and assessed for mineral phosphate solubilization and indole-3-acetic acid(IAA) production activity in *** promising strains,which were tentatively identified as phylotaxon Pseudochrobactrum sp.(BRRh-1),Burkholderia sp.(BRRh-2),Burkholderia sp.(BRRh-3),Burkholderia sp.(BRRh-4),Pseudomonas aeruginosa(BRRh-5 and BRRh-6) based on their 16 S rRNA gene phylogeny,exhibited significant phosphate solubilizing activity in National Botanical Research Institute phosphate growth medium,and BRRh-4 displayed the highest phosphate solubilizing activity,followed by *** p H of the culture broth declined,resulting in increase of growth rate of bacteria at p H 7,which might be due to organic acid secretion by the *** presence of L-tryptophan,five isolates synthesized IAA and the maximum IAA was produced by BRRh-2,followed by *** of two most efficient phosphate solubilizing isolates BRRh-4 and BRRh-5 by root dipping(colonization) of seedling and spraying at the flowering stage significantly enhanced the growth and grain yield of rice variety BRRI ***,application of both strains with 50% of recommended nitrogen,phosphorus and potassium fertilizers produced equivalent or higher grain yield of rice compared to the control grown with full recommended fertilizer doses,which suggests that these strains may have the potential to be used as bioinoculants for sustainable rice production.

关键词： indole-3-acetic acid mineral phosphate solubilization rice plant growth promotion plant associated bacterium grain yield fertilizer

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