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Volume 54, Issue 269, May 2018

About the Cover

The experiment was conducted at the Biotechnology Laboratory, Bangladesh Sugarcrop Research Institute (BSRI), Ishurdi, Pabna, Bangladesh. Sugarcane somaclones were developed using callus culture supplemented with 2,4-D. Sugarcane somaclones and their sources varieties were analyzed by RAPD molecular markers to check the variation at molecular level based. Information of genetic similarities and diversity among somaclones and their sources varieties is necessary for future breeding programs and derivation of plant lines. Genetic variability and relationships among four varieties viz. Isd 37, Isd 38, Isd 39 and Isd 40 and their 12 somaclones CC–37–1, CC–37– 4, CC–37–5, CC–38–1, CC–38–2, CC–38–5, CC–39–3, CC–39–5, CC–39–6, CC–40–2, CC– 40–3 and CC–40–6 were established by using six RAPD primers. The highest genetic dissimilarity was detected between Isd 37 variety and somaclone CC-37-1 (91%), while the lowest dissimilarity was found between Isd 40 variety and somaclone CC-40-6 (51%). All genotypes (somaclones and their sources varieties) showed an average genetic similarity of 0.26%. Six RAPD primers used in this experiment were able to discriminate all genotypes of sugarcane analyzed. Highest amount of DNA (6741.5 ng/μl) was recovered from the variety Isd 37 and the lowest amount (2012.5 ng/μl) was obtained from the somaclone CC–39–5 from Isd 39 variety.

Table of Contents

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PHYSICS

Influence of Meteorological Variables on UHF Radio Signal: Recent Findings for EBS, Benin City, South-South, Nigeria

Ukhurebor KE

In this study the influence of some meteorological variables on Ultra High Frequency (UHF) radio signals from Edo Broadcasting Service (EBS) in Benin City, South-South, Nigeria located within Latitude 6°20’17″N and Longitude 5°37’32″E was investigated.

Discovery, 2018, 54(269), 157-163

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ENVIRONMENTAL SCIENCE & TECHNOLOGY

Geothermal Heat Pump Potential and Prospect for Energy Efficient, Sustainable Development, and the Environment

Abdeen Mustafa Omer

Some emphasis has recently been put on the utilisation of the ambient energy from ground source and other renewable energy sources in order to stimulate alternative energy sources for heating and cooling of buildings. Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency on fossil fuels.

Discovery, 2018, 54(269), 164-188

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COMPUTER SCIENCE & TECHNOLOGY

Analysis of Queuing Model: A Case Study of Madonna Model Secondary School, Owerri

Kama, Henry Nnanna, Okemiri Henry Anayo, Nnamene Christopher, Oketa Christian Kelechi

Queuing theory is the mathematical study of waiting lines [12]. The application of Queuing models was carried out in Madonna Model Secondary School, Owerri, Imo State, Nigeria. Specifically, this study attempts to eliminate waiting time and to formulate a suitable model queuing model as a solution in Dining Hall system

Discovery, 2018, 54(269), 189-194

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GENETICS & GENOMICS

Development of somaclones in sugarcane through callus culture and subsequent molecular diversity analysis using RAPD markers

Kuasha Mahmud, Nasiruddin KM, Hossain MA, Hassan L

The experiment was conducted at the Biotechnology Laboratory, Bangladesh Sugarcrop Research Institute (BSRI), Ishurdi, Pabna, Bangladesh. Sugarcane somaclones were developed using callus culture supplemented with 2,4-D.

Discovery, 2018, 54(269), 195-200

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GEOSCIENCE

Drill Core exploration for estimation of Limestone resources in Effium area near Abakaliki, S/E Nigeria

Onwe RM, Onwe IM

Limestone is essential and a principal raw material including and for Portland cements manufacturing. During geological investigation and evaluation, the geology and geometry of its deposits is ascertained. Ideally the information expected should cover all the properties which are important in the resource’s valuation.

Discovery, 2018, 54(269), 201-212

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