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Journal of Agricultural Science and Technology(B) 2018年第2期8卷 71-84页

作者： mohammad Akram Hossain Chowdhury mohammad Shahidur Rashid Bhuyia mohammad Shah-e-Alam mohammad abul kalam azad Department of Agricultural Extension Ministry of Agriculture Dhaka 1215 Bangladesh Department of Genetics and Plant Breeding Sher-e-Bangla Agricultural University Sher-e-Bangla Nagar Dhaka 1207 Bangladesh Department of Genetics and Plant Breeding Bangladesh Agricultural University Mymensingh 2202 Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear Agriculture (BINA) BAU Campus Mymensingh 2202 Bangladesh

The study was performed with seven groundnut varieties/genotypes and F1s derived from crossing in all possible combinations without reciprocal among the mentioned varieties/genotypes. The objective was to assess whether low Ca2＋ content and Ca2＋/Na＋ ratio of leaf tissue or stem tissue determine salinity tolerance in terms of economic yield （kernel yield） in groundnut. It revealed that the varieties, “Binachinabadam-6”, “Binachinabadam-5” and the F1 G2 × G3 were most tolerant based on kernel yield under 8 dS/m and 10 dS/m salinity stresses. These two tolerant varieties and the F1 also showed lower Ca2＋ and Ca2＋/Na＋ ratios in leaf tissue, which indicated lower Ca2＋ and Ca2＋/Na＋ ratio of leaf tissue determined salinity tolerance in terms of kernel yield in Spanish type groundnut. These findings could be applied in future plant breeding applications for screening salt tolerant Spanish type groundnut genotypes.

关键词： Salinity tolerance groundnut Arachis hypogea Ca2+ content in leaf tissues Ca2+/Na+ ratio in leaf tissue.

Chromosome Structural Rearrangements in Onion(Allium cepa L.)through Induced Mutation

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Journal of Agricultural Science and Technology(B) 2019年第2期9卷 110-118页

作者： Moutoshi Chakraborty mohammad abul kalam azad Md Ashraful Haque Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear AgricultureBangladesh Agricultural University CampusMymensingh 2202Bangladesh

This study investigated whether there was any chromosomal structural rearrangement in individual chromosome of two mutant lines of onion viz.,BP2-100/1 and BP2-100/2 compared to the parental chromosomes which may explain the seed to seed productions of the mutants in the same winter season even at late planting in January unlike the parent *** chromosome preparation was made from the root tip by haematoxylin *** deviation in the number of chromosomes was found in the mutant lines but the length of the individual chromosomes was longer than that of their parent *** of the eight pairs of homologous chromosomes,seven pairs were metacentric and one pair submetacentric in the parent“BARI Piaz-2”;five pairs were metacentric and three pairs submetacentric in BP2-100/1;and three pairs were metacentric,three pairs submetacentric and two pairs of subtelocentric in BP2-100/*** was assumed that the length extension of the chromosomes and rearrangements in the arm ratio were due to gamma irradiation that induced duplication and or translocations of some regions of the *** research is needed to identify the induced genes and to establish relationships of the genes with the modified seed production behavior of the mutants.

关键词： Onion mutation chromosome karyotype idiogram.

Renewable Energy: Prospects and Challenges in Bangladesh

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Energy and Power Engineering 2024年第2期16卷 43-78页

作者： abul Fattah mohammad Masum Rabbani Md. Masudur Rahman Rahat Ahsan Habib Md. Nazrul Islam Bangladesh Police Dhaka Bangladesh Department of Chemistry University of Dhaka Dhaka Bangladesh

Among expert scientists and politicians, there is increasing agreement that it is absolutely necessary to reduce the emission of greenhouse gas (GHG) to lessen the severity of climate change. Although little, renewable energy sources currently reduce GHG that are being emitted from the energy industries. According to the majority of long-term energy estimates, renewable energy will be a substantial addition to the supply of energy worldwide by the end of this century, as capacity of renewable energy is gradually increasing in the early decades. However, developing nations like Bangladesh are largely reliant on pricey imported energy supplies (coal, gas, and oil) that lay a heavy weight on the country’s economy. Also, air pollution growing in importance as a national and international environmental issue. Regarding the development of clean and sustainable energy, renewable energy sources seem to be among the most practical and efficient alternatives, in both Bangladesh and globally. The geographic advantages of Bangladesh allow for widespread usage of the majority of such renewable energy sources. The comparative potential and use of fossil fuels against renewable energy sources globally and in Bangladesh is explored in this review.

关键词： Renewable Energy Solar and Photovoltaics Hydropower Wind Energy Geothermal

Traveling wave solutions to some nonlinear fractional partial differential equations through the rational(G'/G)-expansion method

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Journal of Ocean Engineering and Science 2018年第1期3卷 76-81页

作者： Tarikul Islam M.Ali Akbar abul kalam azad Department of Mathematics Hajee Mohammad Danesh Science and Technology UniversityDinajpurBangladesh Department of Applied Mathematics Rajshahi UniversityRajshahiBangladesh

In this article,the analytical solutions to the space-time fractional foam drainage equation and the space-time fractional symmetric regu-larized long wave(SRLW)equation are successfully examined by the recently established rational(G/G)-expansion *** suggested equations are reduced into the nonlinear ordinary differential equations with the aid of the fractional complex ***,the theories of the ordinary differential equations are implemented *** types closed form traveling wave solutions,such as hyper-bolic function,trigonometric function and rational,are constructed by using the suggested method in the sense of conformable fractional *** obtained solutions might be significant to analyze the depth and spacing of parallel subsurface drain and small-amplitude long wave on the surface of the water in a *** is observed that the performance of the rational(G/G)-expansion method is reliable and will be used to establish new general closed form solutions for any other NPDEs of fractional order.

关键词： Nonlinear space-time fractional equations Nonlinear fractional complex transformation Conformable fractional derivative Exact solutions

Agro-Morphological, Physico-Chemical and Molecular Characterization of Rice Germplasm with Similar Names of Bangladesh

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Rice science 2016年第4期23卷 211-218页

作者： Mir Sharf Uddin AHMED mohammad KHALEQUZZAMAN Md.Khairul BASHAR abul kalam mohammad SHAMSUDDIN Genetic Resources and Seed Division Bangladesh Rice Research Institute HarvestP lus International Centre for Tropical Agriculture Department of Genetics and Plant Breeding Bangladesh Agricultural University

Thirty-one duplicate and similar named rice germplasms of Bangladesh were studied to assess the genetic variation for the agro-morphological and physico-chemical traits and simple sequence repeat banding patterns during 2009–2012 at Bangladesh Rice Research Institute. The range of variations within the cultivar groups showed higher degree. The principal component analysis showed that the first five components with vector values > 1 contributed 82.90% of the total variations. The cluster analysis grouped the genotypes into four clusters, where no duplicate germplasm was found. The highest number(11) of genotypes was constellated in cluster I and the lowest(3) in cluster II. The intra- and inter-cluster distances were the maximum in cluster I(0.93) and between clusters I and IV(24.61), respectively, and the minimum in cluster IV(0.62) and between clusters I and III(5.07), respectively. The cluster mean revealed that the crosses between the genotypes of cluster I with those of clusters II and IV would exhibit high heterosis for maximum good characters. A total of 350 alleles varied from 3(RM277) to 14(RM21) with an average of 7.8 per locus were detected at 45 microsatellite loci across the 31 rice accessions. The gene diversity ranged from 0.48 to 0.90 with an average of 0.77, and the polymorphism information content values from 0.44(RM133) to 0.89(RM206) with an average of 0.74. RM206, RM21, RM55, RM258 and RM433 were considered as the best markers on the basis of their higher polymorphism information content values. The dendrogram from unweighted pair-group method with arithmetic average clustering also classified the genotypes into four groups, where group IV comprised of 20 genotypes and group III of one genotype, but no duplicate was found. Finally, similar and duplicate named rice germplasms need to be conserved in gene bank as are distinct from each other.

关键词： diversity simple sequence repeat similar name landrace rice agro-morphological and physico-chemical trait

Is machine learning redefining the perovskite solar cells?

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Journal of Energy Chemistry 2022年第3期31卷 74-90,I0004页

作者： Nishi Parikh Meera Karamta Neha Yadav mohammad Mahdi Tavakoli Daniel Prochowicz Seckin Akin abul kalam Soumitra Satapathi Pankaj Yadav Department of Science School of TechnologyPandit Deendayal Energy UniversityGandhinagar 382007GujaratIndia Department of Electrical Engineering School of TechnologyPandit Deendayal Energy UniversityGandhinagar 382007GujaratIndia Department of Telecommunication Ministry of CommunicationMumbai LSAMumbai 400072MaharashtraIndia Department of Electrical Engineering and Computer Science Massachusetts Institute of TechnologyCambridgeMA 02139USA Institute of Physical Chemistry Polish Academy of SciencesKasprzaka 44/5201-224 WarsawPoland Department of Metallurgical and Materials Engineering Karamanoglu Mehmetbey University70200 KaramanTurkey Department of Chemistry Faculty of ScienceKing Khalid UniversityAbha 61413P.O.Box 9004Saudi Arabia Department of Physics Indian Institute of Technology RoorkeeRoorkeeHaridwarUttarakhand 247667India Department of Solar Energy School of TechnologyPandit Deendayal Energy UniversityGandhinagar 382007GujaratIndia

Development of novel materials with desirable properties remains at the forefront of modern scientific *** learning(ML),a branch of artificial intelligence,has recently emerged as a powerful technology in optoelectronic devices for the prediction of various properties and rational design of *** halide perovskites(MHPs)have been at the centre of attraction owing to their outstanding photophysical properties and rapid development in solar cell ***,the application of ML in the field of MHPs is also getting much attention to optimize the fabrication process and reduce the cost of ***,we comprehensively reviewed different applications of ML in the designing of both MHP absorber layers as well as complete perovskite solar cells(PSCs).At the end,the challenges of ML along with the possible future direction of research are *** believe that this review becomes an indispensable roadmap for optimizing materials composition and predicting design strategies in the field of perovskite technology in the future.

关键词： Machine learning Metal halide perovskites Perovskite solar cell Lead free perovskites

Yield and Fruit Quality of Tomato as Influenced by Calcium and Mulching in Rooftop Cultivation

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Agricultural Sciences 2019年第7期10卷 893-902页

作者： Md. abul kalam azad mohammad Shafiqul Islam Md. Isrfil Hossen Touria El-Jaoual Eaton Department of Crop Science and Technology Rajshahi University Rajshahi Bangladesh Cooperative Extension and Research Lincoln University of Missouri Jefferson MO USA

The experiment conducted in containers known as pot placed on rooftop of a building using noncalcareous grey terrace soil was carried out from October, 2012 to March, 2013 at Kazla, Motihar, Rajshahi, Bangladesh to investigate the influences of calcium and mulching practices on yield and fruit quality of tomato. The study was laid out in a split-split plot design with three replications. The trials comprised three factors: 1) three tomato varieties viz, BARI F1Tomato-5, BARI F1Tomato-6 and BARI F1Tomato-7;2) four levels of calcium (Ca) treatment (40 ppm, 60 ppm, 80 ppm, 120 ppm) and 3) mulching practices. Results of the experiment revealed that fresh yield of tomato was significantly increased by applying mulching practices due to conservation of soil moisture by mulches and therefore, reduced Ca-deficiency symptoms. The highest number of fruits per plant and fresh yield were obtained from the variety BARI F1Tomato-5. The same trend of yield and yield contributing parameters were likely to be better by using T3?treatment (80 ppm) than those of other treatments. In contrast, BARI F1Tomato-7 variety in control treatment without mulching practice gave poor quality and yield of tomato. Results suggested that BARI F1Tomato-5 variety receiving 80 ppm calcium treatment with mulching condition exposed better quality, yield and yield contributing characters of tomato. However, the T3?treatment (80 ppm) with mulching would be recommended as the best combination to grow BARI F1Tomato-5 for the farmers in Bangladesh.

关键词： Tomato Varieties Calcium Treatment Rice Straw Mulching Practices and Yield

Influence of Organic and Inorganic Fertilizers on Floating Bed Cultivation of Okra and Cucumber during Summer Season in Southern Part of Bangladesh

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American Journal of Plant Sciences 2022年第5期13卷 600-612页

作者： Asit Baran Mondal abul kalam azad mohammad Bashir Ahmed Abdul Mannan Mukhtar Hossain Touria E. Eaton Rural Reconstruction Foundation (RRF) Jashore Bangladesh Department of Crop Science & Technology Rajshahi University Rajshahi Bangladesh Cooperative Extension and Research Lincoln University of Missouri Jefferson City USA Agrotechnology Discipline Khulna University Khulna Bangladesh

Some trails were carried out with a view to evaluate the performances of organic and inorganic fertilizers on growth and yield of okra (Abelmoschus esculentus L.) and cucumber (Cucumis sativus L.) in floating bed cultivation applying water hyacinth in 2014 and 2015 at Gopalpur union under Tungipara upazila of Gopalganj district in Bangladesh. The single factor experiment was conducted following Randomized Complete Block Design (RCBD) involving four treatments with three replications viz. T1: control (without organic and inorganic fertilizer), T2: cow dung, T3: recommended dose of NPK and T4: 50% cow dung + 50% recommended dose of NPK. Different growth parameters in respect of okra grown in 2014 and 2015, the longest plant height (171.73 cm and 164.03 cm), maximum number of branches (5.67 and 5.67) and leaves (60.33 and 69.67) were found in the treatment T3. Regarding yield parameters, significantly higher number of fruits plant-1, fruit length (cm), fruit diameter (cm), individual fruit weight (g), fruits weight plant-1 (g) and yield (t·ha-1) were 24.00 & 23.33, 16.61 & 16.59 cm, 6.01 & 6.17 cm, 23.47 & 24.74 g, 617.33 & 660.33 g, 13.01 & 13.21 t·ha-1 obtained respectively grown in 2014 and 2015 by applying the treatment T3 were identically similar with those in receiving the treatment T4. The lowest output was recorded in control in both seasons for all the cases. Similar trend of growth and yield were also observed during the cultivation of cucumber under the same treatment conditions in both the seasons. Results revealed that there was no identical differences in growth and yield attributes in between the treatments T3 and T4, where as the production cost was subjected to lower in T4 compare to T3. However, from the economic point of view, the treatment T4 i.e. application of

关键词： Water Hyacinth Floating Bed Cow Dung NPK Fertilizers Vegetable Cultivation Economic Analysis

Impact of industrial effluent on growth and yield of rice(Oryza sativa L.) in silty clay loam soil

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Journal of Environmental Sciences 2015年第4期27卷 231-240页

作者： mohammad Anwar Hossain Golum Kibria Muhammad Mustafizur Rahman mohammad Mizanur Rahman abul Hossain Molla mohammad Mostafizur Rahman mohammad Khabir Uddin Department of Environmental Sciences Jahangirnagar University Department of Soil Science Bangabandhu Sheikh Mujibur Rahman Agricultural University Department of Bioenvironmental Science Bangabandhu Sheikh Mujibur Rahman Agricultural University

Degradation of soil and water from discharge of untreated industrial effluent is alarming in Bangladesh. Therefore, buildup of heavy metals in soil from contaminated effluent, their entry into the food chain and effects on rice yield were quantified in a pot experiment. The treatments were comprised of 0, 25%, 50%, 75% and 100% industrial effluents applied as irrigation water. Effluents, initial soil, different parts of rice plants and post-harvest pot soil were analyzed for various elements, including heavy metals. Application of elevated levels of effluent contributed to increased heavy metals in pot soils and rice roots due to translocation effects, which were transferred to rice straw and grain. The results indicated that heavy metal toxicity may develop in soil because of contaminated effluent *** metals are not biodegradable, rather they accumulate in soils, and transfer of these metals from effluent to soil and plant cells was found to reduce the growth and development of rice plants and thereby contributed to lower yield. Moreover, a higher concentration of effluent caused heavy metal toxicity as well as reduction of growth and yield of rice, and in the long run a more aggravated situation may threaten human lives,which emphasizes the obligatory adoption of effluent treatment before its release to the environment, and regular monitoring by government agencies needs to be ensured.

关键词： Biomass Crop yield Heavy metal Industrial effluent Soil pollution

Genetic Variability and Path Analysis Studies in Hybrid Maize (<i>Zea mays</i>L.)

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American Journal of Plant Sciences 2017年第12期8卷 3101-3109页

作者： mohammad Quamrul Islam Matin Md. Shalim Uddin Md. Motiar Rohman mohammad Amiruzzaman abul kalam azad Bhagya Rani Banik Bangladesh Agricultural Research Institute (BARI) Gazipur Bangladesh Bangladesh Agricultural Research Council (BARC) Dhaka Bangladesh

The present study was carried out to access correlation coefficient, path analysis and genetic variability among twenty one locally developed maize hybrids for ten characters. Positive and significant genotypic, phenotypic correlation coefficient were recorded for yield with anthesis silking interval (rg = 1.00**, rp = 0.96**), cob diameter (rg = 0.99** and rp = 0.95**) and ear height (rg = 0.98** and rp = 0.94**). But days to 50% tasseling had moderate but significant positive correlation at both phenotypic and genotypic level. High genotypic coefficient of variation (GCV) was obtained from thousand seed weight, days to 50% silking, cob diameter and anthesis silking interval. The highest phenotypic coefficient of variation (PCV) was observed in thousand seed weight followed by days to 50% silking and cob diameter. The highest heritability (Hb) was observed for cob diameter (95.25) followed by days to 50% silking (94.15), days to maturity (93.85) and ear height (93.06). The characters with high GCV and higher values of heritability indicated high potential for selection. Anthesis silking interval (0.79) had the highest positive direct effect on yield followed by cob diameter (0.31), cob length (0.31) and plant height (0.04) indicating the effectiveness of direct selection. While some other characters such as days to 50% tasseling (-0.12), days to 50% silking (-1.78), ear height (-1.16), days to maturity (-0.64) exhibited indirect negative effect on yield indicating the effectiveness of indirect selection.

关键词： Genetic Variability Path Co-Efficient Hybrid Maize