Jessore University of Science & Technology

About: Jessore University of Science & Technology is a based out in . It is known for research contribution in the topics: Adsorption & Population. The organization has 811 authors who have published 974 publications receiving 10471 citations.

Assessment of High-yielding Rapeseed-mustard Varieties in Haor (Wetland) Ecosystem for Development of Mustard-Boro Rice-Fallow Pattern in Sylhet Region of Bangladesh

Abstract: Aims: To assess the suitability of short duration high yielding rapeseed-mustard variety(s) cultivation in the haor (wetland) areas. Study Design: Randomized complete block (RCB). Place and Duration of Study: Farmers’ field of Lalakhal, Jaintapur Upazila of Sylhet, Bangladesh during November 2014 to February 2015. Methodology: The treatments included in the experiment were seven rapeseed-mustard varieties viz. i. Tori-7, ii. BARI sarisha-13, iii. BARI sarisha-14, iv. BARI sarisha-15, v. BARI sarisha-16, vi. advanced line Nap-205 and vii. BINA sarisha-4. Design of the experiment was randomized complete block (RCB) with three replications. Original Research Article Debnath et al.; AJAHR, 8(2): 12-17, 2021; Article no.AJAHR.67850 13 Results: The results revealed that BARI sarisha-16 produced the highest seed yield (1.99 t ha -1 ), but it took the maximum days (92) to maturity. The variety BARI sarisha-15 produced the second highest seed yield (1.78 t ha) closely followed by BINA sarisha-4 (1.75 t ha) and BARI sarisha13 (1.68 t ha -1 ). The lowest seed yield (1.53 t ha -1 ) was obtained from the variety Tori-7 which was statistically similar to that of BARI sarisha-14 (1.59 t ha) and Nap-205 (1.68 t ha). Tori-7 took the minimum days (74.7) to maturity while BARI sarisha-15 took 77.7 days. Conclusion: Variety BARI sarisha-15 could be a good option for haor areas for cultivation in medium low land before Boro rice after recession of rainwater, as it took less duration to maturity (77.7 days) with good seed yield (1.78 t ha -1 ).

A study and implementation of large-scale log-determinant computation to cloud

Abstract: Logarithm of a square matrix is a factor that clearly affects the quality or result of something. Logarithms are used to maintain exactitude in many numerical computations than the determinant. At ...

Farming of giant freshwater prawn (Macrobrachium rosenbergii) in Bagerhat, Bangladesh

Abstract: The study was carried out to know the present status of Macrobrachium rosenbergii culture in Bagerhat district, Bangladesh from March 2012 to January 2013. Education levels of farmers were found as illiterate (12.3%), primary (36.19%), secondary (20%), SSC (13.33%), HSC (12.38%) and graduate (5.71%). M. rosenbergii culture was the primary and secondary occupation of 80% and 20% farmers respectively. Average stocking density and production in extensive, improved extensive and semi-intensive culture were 9609, 11502 and 22847 per ha and 193, 284 and 488 kg/ha/year respectively; rearing period ranges from 6-10 months and survival rate varied from 55 to 60%. In improved extensive and semi-intensive culture 82.86% and 71.43% farmers applied farm-made feed instead of company feeds respectively and 11.43% and 37.14% farmers used both feeds. 91.43%, 80% and 68.57% respondents responded on normal to high mortality in extensive, improved extensive and semi-intensive culture respectively. Lack of finance and appropriate technology, scarcity of quality PL, diseases and inadequate extension work were major problems of prawn culture.

A study on immedi̇ate effect of smoki̇ng on young athletes i̇n respect of selected physi̇ologi̇cal vari̇ables influenci̇ng aerobi̇c performance

Abstract: Immediate effect of smoking on young athletes in respect of selected physiological variables influencing aerobic performance. The purpose of this research was to investigate immediate effect of smoking on aerobic performance to promote or reject smoking before any cardiovascular endurance activity. For this experiment 16 young athletes age between 20 to 24 years with Mean age of approximately 23 years were randomly selected as subject; and for physiological variables those are closely associated with aerobic capacity were selected, Tests - i. Pulse Rate per Minute: Before Cooper Test (CT) – Immediate after completion of CT – 3 Minutes after recovery; ii. Blood Pressure in mmHg: Before CT - 3 Minutes after recovery; iii. Forced Vital Capacity (FVC) in Liters/Minute: Before CT – 3 Minutes after recovery; iv. Oxygen Saturation (SpO 2 ) in Percentage: Before Cooper Test (CT) – Immediate after completion of CT – 3 Minutes after recovery; v. Blood Sugar in mmole/Liter: Before CT - 3 Minutes after recovery; and to find performance Cooper Test (CT) to measure Cardiovascular Endurance in Kilometer were selected. Researchers came to following conclusion out of through and judicious analysis from collected data. Smoking influenced on the pulse rate taken before the aerobic capacity test. Blood Presser level rose test taken immediate before CT test in both systolic and diastolic due to smoking cigarette. Lung capacity measured in FVC remarkably influenced by smoking. SpO 2 remain in normal range before CT and 3 minutes after with smoking and without smoking but immediate after test score hit to 80% in both the conditions. No impact of smoking was recorded on O 2 saturation in terms of Mean value. Smoking increased Blood sugar level in 3 minutes after recovery test. Cooper test performance scores were severely reduced by smoking. On Body Mass Index Smoking had very little or no impact in investigation. Article visualizations:

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Abstract: Photosystem II (PS II) pesticides, recognised as a threat to ecological health, were targeted for reduction in sugarcane farming in the Great Barrier Reef (GBR) catchments. Alternative herbicides, the non-PS II herbicides (including glyphosate, paraquat, 2,4-D, imazapic, isoxaflutole, metolachlor, and S-metolachlor), continue to be used in these catchments. However, the potential ecological fate, transport, and off-site environmental effects of non-PS II herbicides, with respect to their usage scheme, local rainfall patterns, and infiltration dynamics, has not been investigated previously. A vadose zone monitoring system, instrumented beneath a sugarcane land in a GBR catchment, was applied for real time tracing of pesticide migration across the unsaturated zone, past the root zone during 2017–2019.The monitoring of regularly applied pesticides (fluroxypyr and isoxaflutole), exhibited substantial migration through the unsaturated zone. Within one month after application of fluroxypyr, it leached to 2.87 m depth in the vadose zone, with declining concentrations with depth. Isoxaflutole, which was applied yearly, was found only once, in November 2018, at 3.28 m depth in the soil profile. Other pesticides (imazapic, metolachlor, glyphosate and haloxyfop), applied at the same period, were not detected through the vadose zone. However, imidacloprid, which was not applied at the site during the monitored period, was detected across the entire vadose zone, revealing substantial resistance to degradation. The results show no evidence of any regularly applied pesticides in the site bores at the end of the study, indicating their ultimate degradation within the vadose zone before reaching the groundwater.