International Journal of Environment and Climate Change <p style="text-align: justify;">A sustainable world is one in which human needs are met equitably without sacrificing the ability of future generations to meet their needs and without harm to the environment and ecosystem function and service. Meeting this formidable challenge requires a substantial effort under climate change impact, economic development and population growth. <strong>International Journal of Environment and Climate Change (ISSN:&nbsp;2581-8627)</strong> aims to publish original research articles, review articles and short communications. This is a quality controlled, double blind peer-reviewed, open access INTERNATIONAL journal. It has long been recognized that the long-term viability of natural capital is critical for many areas of human endeavour under climate change impact. The aims are to support engineering science research with the goal of promoting sustainable development with environmentally benign engineered systems that support human well-being and that are also compatible with sustaining natural (environmental) systems.</p> en-US (International Journal of Environment and Climate Change) (International Journal of Environment and Climate Change) Tue, 06 Apr 2021 11:45:07 +0000 OJS 60 Genotypic × Environment Interaction and Stability Analysis for Yield and Yield Attributes in Taramira (Eruca sativa Mill.) <p><strong>Aims:</strong> To identify the stable genotypes across the different environments for yield and its&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; attributing traits.</p> <p><strong>Study Design: </strong>Field experimental design was applied.</p> <p><strong>Place and Duration of Study: </strong>The experiment was conducted at Research Farm, SKN College of Agriculture, S.K.N. Agriculture University, Jobner (Rajasthan), India in different environments during <em>rabi</em> 2018-19.</p> <p><strong>Methodology:</strong> An experiment was conducted on thirty genotypes of taramira (<em>Eruca Sativa </em>Mill.) in three environments created by three dates of sowing during <em>rabi </em>2018-2019 in randomized block design with three replications to estimate genotypic × environment interaction and stability parameters for various yield and yield attributing traits. The stability analysis was carried out according to Eberhart and Russell model.</p> <p><strong>Results:</strong> The highest yielding genotypes were RTM-1351, RTM-1810, RTM-1315 and RTM-314. Genotypes RTM-314, RTM-1800, RTM-1810 and RTM-1815 were found relatively stable for seed yield per plant. Genotypes RTM-1795, RTM-1798 and RTM-1799 had below average stability for seed yield per plant and suitable for better environmental conditions. Genotypes RTM-1791, RTM-1815 and RTM-1351 were showed above average stability for seed yield per plant and suitable for poor environmental condition. Further, these genotypes can be utilized in the development of stable cultivar taramira.</p> <p><strong>Conclusion:</strong> Pooled analysis of variance indicated significant differences among environments and genotypes. Genotypes RTM-314, RTM-1800, RTM-1805 and RTM-1810 were found most stable for most of the characters, which can be grown in wide range of environments (all three dates of sowing).</p> Mahaveer Prasad Ola, Mohan Lal Jakhar, D. K. Gothwal, Sarfraz Ahmadmad, Manohar Ram ##submission.copyrightStatement## Tue, 06 Apr 2021 00:00:00 +0000 Effect of Organic Amendments on Soil Carbon Stock, Yield and Quality of Sugarcane Ratoon <p>A field experiment was conducted during 2018-20 to evaluate the effect of different organic amendments on yield and quality of sugarcane ratoon in calcareous soil at Crop Research Centre, farm at Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar. The experiment was conducted in randomized block design with 8 treatments viz. control, FYM (farmyard manure) @ 20 t ha<sup>-1</sup>, biocompost (BC) @ 20 t ha<sup>-1</sup>, vermicompost (VC) @ 5.0 t ha<sup>-1</sup>, green manure with moong, sugarcane trash @ 10 t ha<sup>-1</sup>, FYM + BC+ VC (1: 1: 0.5) @ 20 t ha<sup>-1</sup> and recommended dose of fertilizer (RDF) as NPK (170: 50: 60 kg ha<sup>-1</sup>) and replicated thrice in sugarcane plant-ratoon system. The sugarcane plant crop was taken and after harvest of plant, the ratoon crop was initiated. Addition of organic amendments significantly increased the number of tillers, millable cane and ratoon cane yield which was at par with recommended dose of fertilizer. The cane juice quality was not affected due to different treatments. The mean cane yield (61.7 - 77.1 t ha<sup>-1</sup>) and sugar yield (4.06-10.56 t ha<sup>-1</sup>) varied significantly in organic added plots t ha<sup>-1 </sup>which was found at par with RDF. The sugar yield followed the similar trends of cane yield. The SMBC (soil microbial biomass carbon), CO<sub>2</sub> evolution and carbon stocks were significantly higher in organic amendment added plots indicating improvement in soil carbon status. The highest value of CO<sub>2</sub> evolution, SMBC and carbon stocks were observed in the treatment receiving FYM+BC+VC in combination (1: 1: 0.5). Organic amendments had beneficial impact on restoration of soil carbon status, cane and sugar yield of ratoon crop of sugarcane in calcareous soil.</p> Rashmi Priyadarshi, S. K. Thakur, C. K. Jha, S. K. Singh ##submission.copyrightStatement## Mon, 12 Apr 2021 00:00:00 +0000 Evaluation of Pollution Load: Heavy Metal Contents and Physiochemical Properties of the Great Kwa River, Calabar, Cross River State, Nigeria <p><strong>Background and Objectives:</strong> Human activities can increase the amount of pollutants in the environment leading to water pollution. The contamination of surface water and sediments by heavy metals can result in adverse health conditions of humans, due to the bioaccumulation of metals. This study seeks to assess the pollution load of some heavy metals and physiochemical properties in Great Kwa River.</p> <p><strong>Methods:</strong> Water samples were collected once a month from three stations within four selected months in wet and dry seasons. Samples were preserved by adding 10 ml of 6 N Nitric acid and stored at 5<sup>o</sup>C. Laboratory investigations were conducted and data analyzed statistically.</p> <p><strong>Findings:</strong> The mean pH, dissolved O<sub>2</sub>, biological O<sub>2 </sub>demand, conductivity, NO<sub>3</sub>, NH<sub>4</sub> and temperature were 7.44±1.24, 5.58±0.92, 0.957±0.002, 32.84±2.941, 0.1030±0.1701, 0.113±0.018 and 28.2±1.48, respectively during wet season. Mean concentration of Cu, Fe, Cr, Mn, Zn, Ni are 0.225±0.003, 0.489±0.009, 0.068±0.016, 0.102±0.006, 0.794±0.003, 0.031±0.001, respectively during the wet season. Mean concentration of metals in the river during the wet season were ranked in descending order as Zn &gt; Fe &gt; Cu &gt; Mn &gt; Cr &gt; Ni. Iron (0.489±0.009 mg/l and 0.438±0.003 mg/l), chromium (0.068±0.016 mg/l and 0.055±0.008 mg/l), nickel (0.031±0.001 mg/l and 0.025±0.002 mg/l) were higher than Nigerian standard for drinking water in both seasons. The contamination factor of heavy metals in station 3 were 2.14, 1.56, 1.09, 0.89 for Fe, Cr, Ni, Zn, respectively, indicating moderate contamination. The pollution load index in stations 1, 2, 3 were 0.262, 0.537, 0.981, respectively.</p> <p><strong>Conclusion:</strong> The present study provided base-line information on the pollution levels and physiochemical properties of the river. The river was not highly polluted by heavy metals except iron, chromium and nickel that were found above the recommended standards. However, drinking of water from the river over one’s lifetime is not advisable due to detrimental health hazards.</p> Paul Bassey Ekpo, Anthony John Umoyen, Nseobong Godwin Akpan, Inyang Paul Ekpo, Gabriel Abu, Cecilia James Sunday ##submission.copyrightStatement## Mon, 12 Apr 2021 00:00:00 +0000