Current Journal of Applied Science and Technology <p style="text-align: justify;"><strong>Current Journal of Applied Science and Technology (ISSN:&nbsp;2457-1024)</strong> is dedicated to publish research papers, reviews, case studies and short communications from all disciplines of science and technology. By not excluding papers on the basis of subject area, CJAST facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated.</p> en-US (Current Journal of Applied Science and Technology) (Current Journal of Applied Science and Technology) Sat, 04 Apr 2020 12:32:41 +0000 OJS 60 Role of Agri-input Dealers in Providing Extension Services to the Farmers of Bihar (India) and Their Role Expectation from Government Institutions <p>The present study was undertaken in Bhagalpur and Vaishali districts of Bihar (India) during 2017-19.The study focused on the farm extension services by agri-input dealers. The data was collected from 120 agri-input dealers through structured schedule. Findings of the study regarding after sale services information showed that the agri-input dealers do farmer’s field visits very often. The agri-input dealers facilitate demonstration of new varieties of seeds, pesticides and herbicides in farmers’ fields in collaboration with the company. They efficiently provide information related to new technologies. Governments’ role in farm extension services to the farmer is unsatisfactory. Dissemination of latest technological information and farm implements through agri-input dealers will reduce the cost of cultivation. Thus agri-input dealers play a significant role in providing information to the farmers. However, most agri-input dealers have in sufficient knowledge so they need training and exposure from government institutions.</p> Subodh Kumar, Ravi Atal, Sonam Roy, C. K. Panda, R. K. Sohane ##submission.copyrightStatement## Sat, 04 Apr 2020 00:00:00 +0000 Studies on Non-preference Mechanism and Biochemical Aspects of Resistance to BPH Nilaparvata lugens (Stal.) on Resistant Rice Genotypes <p><strong>Aims: </strong>To conduct studies on non-preference mechanism and biochemical aspects of resistance to BPH on resistant rice genotype.</p> <p><strong>Study Design: </strong>Completely Randomized Design.</p> <p><strong>Place and Duration of Study: </strong>Poly-house, Department of Entomology, Rice Research Centre, Agriculture Research Institute (ARI), Rajendranagar, Hyderabad, India, between June 2017 and May 2018.</p> <p><strong>Methodology: </strong>The selected rice entries were selected including PTB33 (resistant check) and TN1 (susceptible check), this was replicated thrice. After 30 days, about hundred first instar nymphs were released in the pots. The number of nymphs settled on each entry was counted from randomly selected 10 hills at 24, 48, 72, 96 and 120 hours after release. Number of probing marks made by a day old single female insect during 24 hours of its feeding was recorded on all the selected entries along with resistant and susceptible rice cultures. Estimation of total phenols, total sugars and proteins was done for selected rice genotypes.</p> <p><strong>Results:</strong> Among all the test cultures, KNM 2305, KNM 2307, JGL 24423 and Sabita recorded lowest number of nymphal settlement. Biochemical aspects of resistance like total phenols, total sugars and protein content in selected rice genotypes was done. The amount of total phenol was observed to be maximum in the leaf sheath of moderately resistant JGL 24423 (2.70 mg/g). The amount of total sugars was lowest in RNR 26111 (0.33 mg/ g), RNR 21571(0.86 mg/g) followed by JGL 24423 (1.40 mg/g) and highest in susceptible check TN-1 (2.97 mg/g). Least amount of protein was observed in JGL 24423 (0.76 mg/g) followed by IET 23993 (1.43 mg/g).</p> M. Udayasree, P. Rajanikanth, N. R. G. Varma, M. Sreedhar ##submission.copyrightStatement## Mon, 06 Apr 2020 00:00:00 +0000 Determination of Iodide and Fluoride in Brassica Oleraceae Var. Acephale with Ion Selective Electrodes <p>Black dandelion is widely grown in the Black Sea region, consumption as food is quite high. There are many trace elements important in terms of nutritional value. Goitre disease, which is common in this region, is caused by iodide deficiency. Fluoride is of great importance for the health of the teeth. Therefore, in our study, we wanted to measure the iodide and fluoride found in the most consumed dandelions in this region with iodide and fluoride selective electrodes.</p> <p>The black cabbage samples were dried to constant weighing. It was made soluble by wet burning method. Iodide and fluoride ions were determined by dilution. Our electrode consisting of ion exchange, PVC and plasticizer has a sensitivity of 59 mV to 10<sup>-5</sup> - 10<sup>-1</sup> M iodide. Our electrode, which is composed of calcium fluoride and less soluble silver salts, shows a sensitivity of 28 mV to 10<sup>-5</sup> - 10<sup>-1</sup> M fluoride. Iodide and fluoride measurements can be made with our electrodes which are not sensitive to any other anion and cation.</p> Şükrü Kalaycı ##submission.copyrightStatement## Mon, 06 Apr 2020 00:00:00 +0000 Standardization of Fermentation Time for Foxtail Millet to Black Gram <p>Fermentation is a household procedure used to preserve and produce diversified products enriched with bioactive components. Different combinations of instant or ready to use dosa mixes were prepared using foxtail millet, rice and pulses like black gram and green gram dals by fermenting at 37°C for 6, 12 and 18 hours depending upon the pulse used. The results revealed that 12 hours of fermentation was necessary to give best dosa for all combinations similar to control. The combination of 70% foxtail millet, 20% black gram and 10% green gram gave better results when compared with control and the percentage increase in appearance, texture, flavour and overall acceptance were 3.66%, 2.41%, 1.18% and 1.19% respectively with decrease in taste by 7.53% and no change in sourness for both samples.</p> P. Harichandana, W. Jessie Suneetha, B. Anila Kumari, M. Tejashree ##submission.copyrightStatement## Mon, 06 Apr 2020 00:00:00 +0000 Effect of Foliar Application of Macro and Micronutrients on Quality of Kinnow Mandarin <p><strong>Aims: </strong>To determine the suitable combination of fertilizers for obtaining high quality fruits from Kinnow orchard.</p> <p><strong>Study Design: </strong>The experiment was conducted in randomized block design with three replications per treatment on Kinnow mandarin.</p> <p><strong>Place and Duration of Study: </strong>The experiment was conducted on seven years old earmarked plants at Experimental Orchard and in Post-harvest Technology Laboratory of the Department of Horticulture, CCS Haryana Agricultural University, Hisar, Haryana, India during the year 2016-17.</p> <p><strong>Methodology:</strong> The treatments comprising of 11 combinations of Urea, K<sub>2</sub>SO<sub>4</sub>, ZnSO<sub>4</sub>, FeSO<sub>4</sub> and boric acid which were laid out in randomized block design with three replications. Seven years old uniformly grown trees spaced at 6x6 m were selected for the present study and analyzed for yield and quality parameters such astotal soluble solids (%), acidity (%), ascorbic acid (mg/100 ml juice), juice content (%), TSS to acid ratio etc.</p> <p><strong>Results:</strong> In comparison to other fertilizers combinations, the maximum fruit yield per plant (97.83 kg/plant), juice content (49.47%), total soluble solids (9.80%), TSS to acid ratio (11.95) and ascorbic acid content (32.30mg/100ml) and minimum acidity (0.83%), rag (24.00%) and peel content (25.60%) and peel thickness (3.42 mm) were registered with foliar application of Urea 1.0% + K<sub>2</sub>SO<sub>4 </sub>1.0% + ZnSO<sub>4</sub> 0.5% + FeSO<sub>4</sub> 0.5% + H<sub>3</sub>BO<sub>3</sub> 0.2%, however, the foliar spray of Urea, K<sub>2</sub>SO<sub>4</sub>, ZnSO<sub>4</sub>, FeSO<sub>4</sub> and boric acid had no effect on number of seeds per fruit in Kinnow mandarin. Thus it is clear from results that foliar nutrient application showed a stimulating influence on yield and quality parameters of Kinnow fruits.</p> <p><strong>Conclusion:</strong> From the research findings it can be concluded that the maximum potential of Kinnow mandarin plants in respect of fruit yield per plant, juice content, total soluble solids, TSS to acid ratio and ascorbic acid content was exploited to a maximum level and the acidity, rag and peel content and peel thickness to a minimum level with foliar application of Urea 1.0% + K<sub>2</sub>SO<sub>4 </sub>1.0% + ZnSO<sub>4</sub> 0.5% + FeSO<sub>4</sub> 0.5% + H<sub>3</sub>BO<sub>3</sub> 0.2%.</p> Reetika ., G. S. Rana, Komal ., Pooja ., M. K. Rana ##submission.copyrightStatement## Mon, 06 Apr 2020 00:00:00 +0000 Transient Slug Flow Modelling of Subsea Riser Flowline System <p>A gas-water system slug velocity was modelled with slug flow like a train of slug units streaming through a steel flowline riser of roughness 0.025 was modelled, the flowline was 2700 m, and the riser was 100 m with a diameter of 0.254 m, with each slug unit having a liquid slug of 100 m and its gas bubble of 200 m. Presumptuously the liquid phase was not compressible; that is, no gas was entrapped in the liquid; there is also no liquid was trapped within the gas. Unsteady state flow was modelled as a mass-spring system with damping. Liquid phase represented the mass, whereas the gas represented the spring and damping as the force of friction that acts on the fluids in motion by the wall. A quasi-steady-state model having a slug velocity of 4 ms<sup>-1</sup> was used to simplify the numerical correlations and algorithm and to relate with outcomes of the unsteady state model.&nbsp; Outputs from both models show that pressure and rate vary sinusoidally at fixed points in the system. Both models are unconcealed that the velocity of every slug unit was most at the end of flowline to the separator. The result from the transient state model is complex for weighing up with other results from the literature. This procedure was as a product of over-simplification owing to some assumptions made. Also, simultaneous solutions to the differential equations were solved with hand. It is determined that quasi-steady-state outputs are more reliable than the unsteady state model for flowlines that are not situated on heaving surfaces because the model is less complicated and follows the predictable trend.</p> Akin-Taylor Akinbowale Moses, Tobinson A. Briggs ##submission.copyrightStatement## Mon, 06 Apr 2020 00:00:00 +0000 Electroencephalography for Enhanced Understanding of Consumer Preference <p>Conventional measurements used to study consumer response to food products may be subject to cognitive bias, as measurement data was consumer’s reported thoughts or through questionnaires. Therefore, for an unbiased approach electroencephalography (EEG), an electrophysiological method can provide implicit and extensive data. EEG uses electrical activity of brain to record and explain perceptive, attentive as well as emotional processes of consumer towards foods. The asymmetry of EEG signal between right and left hemispheres of anterior (frontal lobe) or posterior (parietal and occipital lobe) parts of brain can be used to determine acceptability of stimuli in a stimulated person. The accurate measurement through EEG enables marketers to compare consumer response to different marketing stimuli and impact moments associated with particular product or brand for better positioning of product in market.</p> B. Neeharika, W. Jessie Suneetha, B. Anila Kumari ##submission.copyrightStatement## Mon, 06 Apr 2020 00:00:00 +0000