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Effect of Missing Nutrient Elements on Grain Yield of Wet Season Rice in Bangladesh

American Journal of Plant Sciences 2019年第4期10卷 631-639页

作者： md Mozammel haque Abdul Latif Sha Jatish Chandra Biswas md Rafiqul Islam Aminul Islam Umme Aminun Naher Soil Science Division Bangladesh Rice Research Institute Gazipur Bangladesh Soil Science Division Bangladesh Rice Research Institute Gazipur Bangladesh

Background and objective: Long-term fertility study is one of the important factors to monitor changes in yield because of different nutrient management options and cropping systems involved in Asian regions. Many short-term and long-term fertilizer trials were conducted for intensive irrigated rice cropping patterns mostly to provide fertilizer rate, but did not considered sustainable soil management for soil health. The objective of the present study was to examine the effect of missing nutrient elements for a long time on rice yield, photosynthetic rate and residual soil fertility. Materials and Methods: The experiment was initiated on a permanent layout at the Bangladesh Rice Research Institute (BRRI) farm, Gazipur during 2000 to 2008 in wet season. Seven treatments in randomized complete block design with four replications were imposed. Grain yield was determined at physiological maturity from three 5 m2 areas within each plot followed by bagging and threshing. Photosynthetic was measure by Li Cor 6400 (USA) machine during study period. Soil sample was analyzed for following standard methods. Results: It was found that grain yield was in decreasing trends for the missing elements that were similar with BR 11 and BRRI dhan 31. On an average, grain yield reductions were 11.6, 7.0, 10.6, 1.1 and 3.4 percent for -N, -P, -K, -S and -Zn, than complete fertilizer treatment (NPKSZn) respectively. Under no fertilization, the ability of soil was to produce 2.9 t·ha-1 of BR11 and 3.1 t·ha-1 of BRRI dhan 31 respectively. Photosynthetic rate of rice plant was always higher in complete fertilizer treatment (NPKSZn) than missing of any nutrient element. The decrease in photosynthetic rate was more pronounced with N missing than others for both the rice varieties. Conclusion: It is concluded that balance chemical fertilizers (NPKSZn) are to be used for sustained and/or increased rice production and to maintain soil fertility.

关键词： Long-Term Fertilizer Soil Nutrient Status Photosynthetic Rate Variety Yield Pattern

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Generation of Virus Free Potato Plantlets through Meristem Culture and Their Field Evaluation

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American Journal of Plant Sciences 2020年第11期11卷 1827-1846页

作者： md. Abul Kalam Azad Zubaida Khatun Touria El-Jaoual Eaton md. Isrfil Hossen md. Kamrul haque Edward Binod Soren Department of Crop Science & Technology Rajshahi University Rajshahi Bangladesh Cooperative Extension and Research Lincoln University of Missouri Jefferson USA

Different aspects of micropropagation through meristem culture for the production of virus indexed source plants, in vitro tuberization and field evaluation of the in vitro regenerated plants were studied on four commercial cultivars of potato (Solanum tuberosum L.) viz., Diamant, Cardinal, Shilbilati and Lalpakri. The investigation was conducted at Rajshahi, Bangladesh from December 2010 to March 2012 to produce virus-free potato plantlets through meristem culture, shoot multiplications with root induction as well as their acclimatization and evaluation of morphological characters and tuber yield under field condition. Shoot tips of 25 - 30 day old field-grown plants of above mentioned four cultivars were used for meristem isolation. After isolation, meristems of these varieties of potato were cultured on “M” shaped filter paper bridge in Murashige and Skoog (MS) liquid medium. Four different treatments of media formulations viz. 0.1 mg/L KIN + 0.1 mg/L GA3, 0.1 mg/L KIN + 0.5 mg/L GA3, 0.5 mg/L KIN + 0.1 mg/L GA3 and 0.5 mg/L KI

关键词： Meristem Culture Micropropagation Potato Cultivars Plantlets Plant Growth Regulators

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Comparative analysis of some selected macronutrients of soil in orange orchard and degraded forests in Chittagong Hill Tracts,Bangladesh

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Journal of Forestry Research 2007年第1期18卷 27-30页

作者： Mohammad Shaheed Hossain Chowdhury Shampa Biswas md. Abdul Halim S. M. Sirajul haque Nur Muhammed Masao Koike Department of Forestry School of Agriculture and Mineral ScienceShahjalal University of Science and TechnologySylhet-3114Bangladesh Department of Mountain Forestry University of Natural Resources and Applied Life Sciences-BOKUViennaAustria Institute of Forestry and Environmental Sciences Chittagong UniversityChittagong-4331Bangladesh Forest Policy Laboratory Department of Forest ScienceFaculty of AgricultureShinshu University8304 Minamiminowa-MuraNagano-Ken 399-4598Japan

Status of organic carbon (C), total nitrogen (N), available potassium (K), calcium (Ca) and phosphorus (P) in three different depths (0-5 cm, 5-15 cm and 15?30 cm) on two hill slopes of 35% and 55% in orange orchard cultivated by the Mro tribe of Chittagong Hill Tracts (CHTs) were evaluated and compared with those in degraded bush forests, through digging three profiles in each land use. The content of all the five nutrients was found to be higher in the soil of orange orchard than in the soil of forest. But the variation was not consistent for both the slopes. The content varied depth wise also, having the highest value in surface soil in case of both the land uses on both the slopes. A mean available K content was significantly higher in orange orchard than in forest on 55% slope, while it was lower on 35% slope. Surface soil contained the nutrients of K and Ca with the amount of 0.2905-mg·g^(-1) soil and 3.025-mg·g^(-1)soil respectively in the orchard, while 0.1934-mg·g^(-1) soil and 1.6083-mg·g^(-1) soil were respectively in the forest. Organic carbon and total nitrogen were found more or less similar in surface soil on both the land uses showing a slight difference. Available P was found only in orange orchard, and in forest it was too little in amount to detect by the spectrophotometer. The degraded forests were poor in nutrient content due to high rate of soil erosion, which would be possible to be improved by bringing it under tree cover as proved by the adaptation of orange orchard there.

关键词： Orange orchard Degraded forests Soil depth Slope Bangladesh

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Comparative study between the effect of Momordica charantia(wild and hybrid variety) on hypoglycemic and hypolipidemic activity of alloxan induced type 2 diabetic long-evans rats

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Journal of Diabetes Mellitus 2012年第1期2卷 131-137页

作者： Subbroto Kumar Saha md. Ezazul haque Dipa Islam md. Matiar Rahman md. Rezuanul Islam Anzana Parvin Shahedur Rahman Department of Biotechnology & Genetic Engineering Islamic University Kushtia Bangladesh

This study was undertaken to evaluate the hypoglycemic and hypolipidemic effect of Momordica charantia (wild and hybrid variety) powder on alloxan induced type 2 diabetic male Long-Evans rats. Oral feeding of the M. charantia powder slightly decreased serum total cholesterol, triglyceride levels and LDL-cholesterol compared with wild, hybrid and standard drug. M. charantia wild variety showed more significant (p M. charantia did not show any significant effect on HDL-cholesterol and liver glycogen. Thus, results of the study prove that the wild variety of M. charantia fruit have potent antidiabetic and antilipidemic property.

关键词： Type 2 Diabetes Mellitus Momordica Charantia Alloxan Hypoglycemic Effect Hypolipidemic Effect Glibenclamide

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Identification of Aflatoxigenic Fungi and Detection of Their Aflatoxin in Red Chilli (Capsicum annuum) Samples Using Direct Cultural Method and HPLC

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Advances in Microbiology 2018年第1期8卷 42-53页

作者： md. Nur Hossain Asma Talukder Farhana Afroze md. Matiur Rahim Shamima Begum md. Zahurul haque Monzur Morshed Ahmed Industrial Microbiology Laboratory Institute of Food Science and Technology (IFST) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka Bangladesh Department of Genetics and Biotechnology Noakhali Science and Technology University Noakhali Bangladesh Department of Microbiology Jagganath University Dhaka Bangladesh Food Toxicology Research Laboratory Institute of Food Science and Technology (IFST) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka Bangladesh

Aflatoxins are the potential lethal toxin produced by Aspergillus sp. important health hazard throughout the world. In this study, 26 Aspergillus sp. have been isolated from 50 samples of red chilli collected throughout the country. These 26 isolates were grown primarily on agar media to identify the aflatoxin producing species. It is possible to distinguish A. flavus strains from other Aspergillus sp. developing orange colour on the reverse of the plates. The Coconut Cream Agar (CCA) is used to detect aflatoxin producer strains having blue fluorescence when exposed to a UV-light. Several other media were used for morphological characteristics of Aspergillus sp. Out of 26 isolates, four isolates were confirmed as Aspergillus sp. These isolates were subjected to cross contamination with freshly ground, sterile maize and after 15 days of incubation the contaminated maize were analyzed by HPLC and found aflatoxin in each of the sample containing 186 ppb (max.). This study was conducted to assay the ability to produce aflatoxins by the Aspergillus spp. isolated from red chilli (Capsicum annuum L. Solanaceae) available throughout the country. The results found in the experiment are much more behind the acceptable limit according to some international standard. As red chilli is a widely used spice in Bangladesh, the proper controlling measures may be taken for controlling the surveillance of aflatoxinic fungi like as use of bio-pesticides, proper drying method and storage conditions.

关键词： Aflatoxin Aspergillus Detection HPLC Red Chilli

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孟加拉国人口分布研究

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人口学刊 2007年第6期29卷 38-40页

作者： md．Nuruzzaman haque[孟] 张广翠（审译）王晓璐（审译）吉林大学东北亚研究中心吉林长春130012

孟加拉国各省、区的人口分布存在着不均衡的特点，采取定量分析的方法，选取人口密度指数、胡佛指数和非均质性指数（index of concentration，Hoover’s index and in—homogeneity index）指标来分析孟加拉国人口分布现有的不平等程... 详细信息

孟加拉国各省、区的人口分布存在着不均衡的特点，采取定量分析的方法，选取人口密度指数、胡佛指数和非均质性指数（index of concentration，Hoover’s index and in—homogeneity index）指标来分析孟加拉国人口分布现有的不平等程度和非均质性。研究结果表明，孟加拉国各省、区的人口集中都存在增加的趋势。同时，通过对斯皮尔曼等级相关系数（Spearman’s rank correlation coefficient）的计算，分析孟加拉国的各地区土地面积和人口密度的关系，发现二者之间存在着较大的负相关关系。

关键词：人口分布孟加拉国人口密度非均质性指数胡佛指数

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Genetic association study of P2x7 A1513C(rs 3751143) polymorphism and susceptibility to pulmonary tuberculosis: A meta-analysis based on the findings of 11 case-control studies

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Asian Pacific Journal of Tropical Medicine 2016年第12期9卷 1126-1134页

作者： Eyad M.A.Alshammari Raju K.Mandal Mohd Wahid Sajad A.Dar Arshad Jawed Mohammed Y.Areeshi Saif Khan md.Ekhlaque Ahmed Khan Aditya K.Panda Shafiul haque Department of Clinical Nutrition College of Applied Medical SciencesUniversity of Ha’il Research and Scientific Studies Unit College of Nursing & Allied Health SciencesJazan University The University College of Medical Sciences & GTB Hospital (University of Delhi) Centre for Life Sciences Central University of Jharkhand

Objective:To summarize the precise association between pulmonary tuberculosis(PTB) and P2x7 A1513 C gene ***:PubMed and Google Scholar web-databases were searched for the studies reporting the association of P2x7 A1513 C polymorphism and PTB risk.A meta-analysis was performed for the selected case-control studies and pooled odds ratios(ORs) and 95%confidence intervals(95%CIs) were calculated for all the genetic ***:Eleven studies comprising 2 678 controls and 2 113 PTB cases were included in this *** observed overall no significant risk in all the five genetic *** stratified population by the ethnicity,Caucasian population failed to show any risk of PTB in all the genetics *** Asian ethnicity,variant allele(C vs.A:P=0.001;QR=1.375,95%CI=1.159-1.632) and heterozygous genotype(AC ***:P=0.001;OR=1.570,95%CI=1.269-1.944) demonstrated significant increased risk of ***,recessive genetic model(CC+AC ***:P=0.001;OR=1.540,95%CI= 1.255-1.890) also demonstrated increased risk of PTB in ***:Our meta-analysis did not suggest the association of P2x7 A1513 C polymorphism with PTB risk in overall or separately in Caucasian ***,it plays a significant risk factor for predisposing PTB in *** larger sample and expression studies are needed to validate this association.

关键词： Genetic model Meta-analysis Polymorphism P2x7 gene Pulmonary tuberculosis

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Effect of Natural Disasters and Their Coping Strategies in the Kuakata Coastal Belt of Patuakhali Bangladesh

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Computational Water, Energy, and Environmental Engineering 2018年第4期7卷 161-182页

作者： Mohammad Zahangeer Alam Joan Halsey md. Manjurul haque Mimi Talukdar md. Moniruzzaman Alex R. Crump Department of Environmental Science Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Department of Environmental Science Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur BangladeshBangladesh Washington State University Pullman WA USA Department of Soil and Water Systems University of Idaho Moscow ID USA

Bangladesh has experienced a number of severe natural disasters. Most recently, tropical storms Aila, Sidr and Mohaseen have affected the Kuakata coastal belt. These natural disasters have had substantial negative impacts on natural resources. Development of coping strategies for the protection of natural resources across this belt is significantly important. The present research is focused on the effects of tropical storms on crops, humans, fish, livestock and infrastructure. There were 99 fatalities recorded during the Sidr and Aila natural disasters. These disasters impacted 910.94 ha (Sidr) and 973.69 ha (Aila) of cropland. The total number of affected livestock and fishes such as, 18,200 fish ponds, 1209 cattle, 3324 goats, 6888 chickens, 1716 ducks, 103 buffalo and 144 sheep. After tropical cyclones of Sidr, Aila, Heavy rainstorms and Mohaseen 12,970, 17,703, 10,050 and 2500 households respectively reported some form of damage. Cattle, goat, chicken and buffalo were found more injured than other livestock due to the natural disasters of Sidr. Temperature and wind speed were both found to be statistically significant (p ≤ 0.05) with humidity. Climatic parameters trend has been increased significantly since 1979. Regular monitoring of climatic variables, preparedness activities, and coping strategies would be significantly important for this coastal communities.

关键词： Tropical Storm Natural Disaster Coping Strategies Coastal Belt Preparedness

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桥接组合式内固定系统与锁定钢板治疗锁骨中段骨折的Meta分析

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中国组织工程研究 2021年第18期25卷 2923-2929页

作者：吴桐熊鹰李焕龙陈勇刘璐赟张珑秦晶 md Ariful haque 昆明医科大学附属延安医院骨科云南省昆明市650051 云南中医药大学云南省昆明市650051

目的:目前临床上治疗锁骨中段骨折最常用的是锁定钢板,桥接组合式内固定系统是一种新型内固定器械,其用于治疗锁骨中段骨折时间并不长,但是国内许多学者已经发表了很多篇临床研究来比较两者的疗效,但是尚无统一意见。文章对桥接组合式... 详细信息

目的:目前临床上治疗锁骨中段骨折最常用的是锁定钢板,桥接组合式内固定系统是一种新型内固定器械,其用于治疗锁骨中段骨折时间并不长,但是国内许多学者已经发表了很多篇临床研究来比较两者的疗效,但是尚无统一意见。文章对桥接组合式内固定系统和锁定钢板治疗锁骨中段骨折的临床疗效进行Meta分析。方法:应用计算机检索PubMed、Medline、The Cochrane Library、迈特思创FMRS外文医学信息平台、OVID医学期刊全文数据库、维普、中国知网和万方数字化期刊平台,收集2010年1月至2020年4月发表的对比桥接组合式内固定系统和锁定钢板治疗锁骨中段骨折的临床对照试验。根据纳入标准和排除标准筛选文献,采用Jadad量表和MINORS评分表进行文献质量评估,对纳入的研究进行质量评价以及数据提取,选择手术时间、术中出血量、骨折愈合时间、并发症及术后1年肩关节功能评分作为Meta分析的评价指标,利用Cochrane协作网提供的RevMan 5.2软件对纳入研究结果进行Meta分析。结果:①文章纳入了中文及外文文献共9篇,其中随机对照试验3篇,非随机对照试验6篇,共计613例锁骨中段骨折的患者,其中桥接组280例,钢板组333例;②通过Meta分析可得:两种方法在术后肩关节功能(md=3.23,95%CI:0.13-6.33,P=0.04)方面差异无显著性意义,但桥接组在手术时间(md=-4.62,95%CI:-9.08至-0.16,P=0.04)、术中出血量(md=-15.29,95%CI:-15.81至-14.47,Pmd=-2.88,95%CI:-3.10至-2.65,P<0.00001)和总体并发症(OR=0.21,95%CI:0.09-0.48,P=0.0002)方面均优于钢板组。结论:桥接组合式内固定系统与锁定钢板两种内固定技术治疗锁骨中段骨折,均能达到预期的治疗效果,两种修复方法在术后肩关节功能方面无显著差异,桥接组合式内固定系统在手术时间、术中出血量、骨折愈合时间及总体并发症方面较锁定钢板有一定优势。但限于该研究方法学质量的影响,文章结果还需谨慎对待,未来尚需要更多大样本、多中心随机对照试验进一步证实。

关键词：骨锁骨骨折肩关节内固定钢板中段骨折 Meta分析

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Leaf Water Status and Its Relationship with Reproductive Responses of Common Bean (Phaseolus vulgarisL.) Genotypes under Water Stress

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American Journal of Plant Sciences 2014年第11期5卷 1547-1556页

作者： Apurba Kanti Choudhury md Abdul Karim md Moynul haque Qazi Abdul Khaliq Jalal Uddin Ahmed Mohammad Mofazzal Hossain Department of Agronomy Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Department of Crop Botany Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Department of Horticulture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh On-Farm Research Division Bangladesh Agricultural Research Institute Joydebpur Bangladesh

Two tolerant (BB24 and BB43) and two susceptible (BARI busbean-2 and BB04) genotypes of common bean (Phaseolus vulgaris L.) were evaluated for their water status and its relationship with reproductive responses under continuous water stress (50% field capacity) and control (80% field capacity) conditions in a net house covered with polyethylene sheet at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh. Under water stress condition, the susceptible genotype namely BB04 exhibited more negative leaf water potential (LWP) which was followed by that of BARI bushbean-2 in all the time of the day except at noon. The tolerant genotype namely BB24 exhibited less negative LWP at noon. The tolerant genotypes maintained higher relative water content (WRC) than the susceptible ones from dawn to dusk. The relationship between RWC and LWP was examined separately for four genotypes under water stress condition. The genotype BB24 showed a smaller decrease in RWC with more negative LWP than BB04. Water stress reduced pod setting ratio. The relationship between the leaf water status and reproductive responses showed that the genotype with a little reduction in mid-day drop of RWC or with high mid-day RWC displayed a high pod setting ratio.

关键词： Leaf Water Potential Pod Setting Ratio Relative Water Content

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