Economic emancipation of the SAARC countries: lessons from ASEAN

Volume 2, Issue 2, July 200

Effect of phosphorus fertilization on nodulation, growth, yield and quality of soybean varieties

Phosphorus is a very important nutritional element that affects soybean growth and nodule nitrogen fixation. The objective of the study was to assess the effect of phosphorus on the growth, yield and quality of different soybean varieties. In this regard, five different doses of phosphorus viz., control (no phosphorus), 50% of the recommended dose (RD) (18 kg ha-1), 100% of RD (36 kg ha-1), 150% of RD (54 kg ha-1) and 200% of RD (72 kg ha-1) were applied on eight distinct soybean varieties namely Shohag, BARI Soybean-5, BARI Soybean-6, PB-1, Binasoybean-1, Binasoybean-2, Binasoybean-3 and Binasoybean-4. The experiment was set up using a randomized complete block design with three replications, Soybean varieties showed variability in terms of plant stature, number of branches plant-1 and number of nodules plant-1. Application of 100% of RD of phosphorus gave maximum plant height, number of branches plant-1 and nodules plant-1 at 45, 60 and 75 DATs. In the case of variety, Binasoybean-1 showed the maximum number of pods plant-1, 100-seed weight, and seed yield. Application of 100% RD of phosphorus exhibited maximum number of branches plant-1, pod length, pods plant-1, seeds pod-1, seed yield, protein and oil contents. Considering the interaction effect, Binasoybean-1 responded well to the application of 100% of RD of phosphorus and gave the maximum seed yield with the highest protein content. Finally, it may be concluded that Binasoybean-1 with the application of 100% RD of phosphorus would be recommended to get desirable yield and quality of soybean

Changing Climatic Hazards in the Coast: Risks and Impacts on Satkhira, One of the Most Vulnerable Districts in Bangladesh

Changes in the climate due to anthropogenic and natural variation are indicated by parameters including temperature and rainfall. Climate change variability with changing trends of the two have been unpredictable and unprecedented globally leading to changing weather patterns, natural disasters, leading to sectoral impacts on food and water security, livelihood, human health among others. This research analyses the changing patterns of these parameters over the last 35/37 years of Satkhira district of Bangladesh to assess the state and trend across spatial and temporal dimensions. Such, the study validates to rationalize the observed seasonal changes that persist in Satkhira of Bangladesh. Both in terms of intensity and frequency of the occurrences of natural disasters, the series of natural events have been triangulated, with impacts and vulnerability being assessed from temperature variations, erratic rainfall, cyclone, flood and water logging etc. The study’s prime contribution remains in attribution of climate change in relation contextual circumstances in the region including sea level rise, salinity intrusion. Therefore, the risk and climatic hazards and its resulting impacts over time has been assessed to draw deeper connection between theoretical and practical values. The series of analyses also draw conclusion that assets are at risk from changing climatic condition

Communication exposure of sub-assistant agriculture officers (SAAOs) towards e-agriculture in Khulna district of Bangladesh

The purpose of this study was to determine the extent of communication exposure of the Sub-Assistant Agriculture Officers towards e-agriculture in Khulna district of Bangladesh. Study was conducted in the five selected upazilas of Khulna city viz., Rupsa, Dighalia, Phultala, Dumuria and Batiaghata which consist of 108 agricultural blocks. A sample of 100 Sub-Assistant Agriculture Officers (SAAOs) was selected from these blocks. Data were collected following a structured pretested interview schedule. Findings revealed that most 60% of the SAAOs had low communication exposures to e-agriculture. Correlation analysis indicates that age, income and service experience had negative significant relationship with communication exposures of SAAOs to e-Agriculture. Training exposure and knowledge on e-agriculture had positive significant relationship with their communication exposures towards e-agriculture. The enter method of regression analysis revealed that knowledge on e-agriculture, training exposure and monthly income described 77.5 percent variation in the communication exposure of SAAOs. The estimates indicated that knowledge on e-Agriculture had strongest (β=0.479) contribution to the variance of communication exposure to e-Agriculture. On the other hand, monthly income had contributed to the variance of communication exposure of SAAOs towards e-Agriculture in negative direction (β=-0.156). Mobile phone was the highest preferred device in using e-Agricultural media by the SAAOs. “Unfamiliarity of extension workers with e-agriculture application” was the main personal constraint and “lack of training on e-agriculture” was the main organizational constraint which might have led to low communication exposure of SAAOs towards e-agriculture

Effect of age of seedlings on the performance of drought tolerant Aman rice cultivars

An experiment was conducted at the Field Laboratory of the Department of Agriculture, Noakhali Science and Technology University (NSTU), Sonapur, Noakhali, from July 2017 to December 2017 to study the effect of variety and age of seedling on yield performance of drought tolerant transplant aman rice. The experiment consisted of three varieties viz. BINA dhan7, BRRI dhan56 and BRRI dhan71 and five different ages of seedling viz.15 days old, 20 days old, 25 days old, 30 days old, and 35 days old. The experimental design was randomized complete block design (RCBD) with three replications. Among the three varieties, BRRI dhan71 produced the highest grain yield (5.567 t ha-1) and the lowest grain yield (4.975 t ha-1) was obtained from BRRI dhan56. Among the five ages of seedlings, the highest grain yield (5.502 t ha-1) was obtained from 35 days old seedling and the lowest grain yield (5.092 t ha-1) was obtained from 15 days old seedling. In case of interaction between variety and spacing, the highest grain yield (5.723 t ha-1) was obtained from BRRI dhan71 with 35 days old seedling and the lowest (4.730 t ha-1) was obtained from BRRI dhan56 with 15 days old seedling. The result reveals that relatively older seedlings (35-days old) produce higher grain yield compared to the younger ones

Synthesis of some NH-derivatives of ciprofloxacin as antibacterial and antifungal agents

Five NH-derivatives of ciprofloxacin (2-6) have been prepared by acetylation/benzoylation on ciprofloxacin (1) in order to carry out screening for antibacterial activities on some Gram-positive and Gram-negative bacteria. The antifungal activity of these compounds has also been made against Candida albicans. All of the derivatives have shown enhanced activities against Gram-negatives bacteria than parent antibiotic, ciprofloxacin among which compounds 2 and 6 are the most potent agents. Regarding the antifungal activity all of the compounds have shown highest activity than ciprofloxacin. All the compounds have been characterized with spectral analysis

Seroprevalence of Hepatitis B and Hepatitis C Virus among Healthy Blood Donors in Tertiary Care Hospital

Hepatitis B virus (HBV) & Hepatitis C virus (HCV) are transfusion transmissible infections. A study was conducted from September, 2015 to March, 2016 at the Transfusion Medicine Department of Rajshahi Medical College Hospital to determine the prevalence of asymptomatic hepatitis B and C virus in apparently healthy blood donors, were subjected to ELISA for screening of hepatitis B surface antigen and Hepatitis C virus. A total of 200 blood donors were screened, the seroprevalence of HBV & HCV infection was 5.0% & 2.0% respectively. The HBV seroprevalence in male donors was 182/8 (4.4%) and in female donors was 18/2 (11.1%). Four donors were found seropositive for HCV giving a seroprevalence of 2%. HCV seroprevalence in male was 182/4 (2.2%) and no female. Seroprevalence of HCV and HBV were higher in younger donors, service holders, married respondents and middle class donors. To reduce the prevalence of post-transfusion hepatitis and stringent donor screening procedure, routine screening for HBV & HCV in blood banks should be performed using more sensitive methods (ELISA).TAJ 2015; 28(1): 26-3

Risks, Vulnerability and Adaptation in Bangladesh

human development, climate change

Investigating Effects of Landfill Soil Gases on Landfill Elevated Subsurface Temperature

Subsurface temperature is a critical indicator for the identification of the risk associated with subsurface fire hazards in landfills. Most operational landfills in the United States (US) have experienced exothermic reactions in their subsurface. The subsurface landfill area is composed of various gases generated from chemical reactions inside the landfills. Federal laws in the US mandate the monitoring of gases in landfills to prevent hazardous events such as landfill fire breakouts. There are insufficient investigations conducted to identify the causes of landfill fire hazards. The objective of this research is to develop a methodological approach to this issue. In this study, the relationship was investigated between the subsurface elevated temperature (SET) and soil gases (i.e., methane, carbon dioxide, carbon monoxide, nitrogen, and oxygen) with the greatest influence in landfills. The significance level of the effect of soil gases on the SET was assessed using a decision tree approach. A naïve Bayes technique for conditional probability was implemented to investigate how different gas combinations can affect different temperature ranges with respect to the safe and unsafe states of these gases. The results indicate that methane and carbon dioxide gases are strongly associated with SETs. Among sixteen possible gas combinations, three were identified as the most probable predictors of SETs. A three-step risk assessment framework is proposed to identify the risk of landfill fire incidents. The key findings of this research could be beneficial to landfill authorities and better ensure the safety of the community health and environment

CIRCULAR RNAS AS POTENTIAL GROWTH BIOMARKERS IN NILE TILAPIA

Abstract from a conference report published in Aquaculture Journal. Report on the 6th Genomics in Aquaculture (GIA) Symposium Held in Granada, Spain, 4–6 May 2022.acceptedVersio