https://revistaschilenas.uchile.cl/handle/2250/24022 [0-9]{4} Fri, 08 May 2026 09:36:33 GMT 2026-05-08T09:36:33Z https://revistaschilenas.uchile.cl:443/bitstream/id/7a1bfb36-a3ef-481d-ba15-0dd0f773a4ad/ https://revistaschilenas.uchile.cl/handle/2250/24022 https://revistaschilenas.uchile.cl/handle/2250/222924 Effect of Saturated solution of Magnous Sulphate on a plant growth promoting Rhizobacteria – Rhizobium species – Host - Arachis hypogaea (Groundnut). The nitrogen assimilating bacterium Rhizobium species is naturally existing symbiotic nodule forming bacterium in the roots of Arachis hypogaea. In laboratory the In-vitro conditions it grows in the standard media called Yeast Extract Mannitol media. In this study experiment was set up using saturated solution of Mangnous sulphate (MnSO4). The bacterium Rhizobium species having pink nodulation activity in the plant of Arachis hypogaea (Groundnut) was aseptically inoculated in the presterilised Yeast Extract Mannitol broth and shake incubated for 48 hrs at room temperature.  One ml of this pure culture bacterium was serially diluted to 109 dilution. 0.1 ml of 109 dilution was aseptically spread inoculated on pre-sterilised petriplate containing media called Congo Red Yeast Extract Mannitol Agar (Cr.Y.E.M.A) plate having media thickness of 5mm. The petri plate was kept in fridge at 4OC for 5 minutes for diffusion. Pre-sterilised whatman filter paper - disc grade 1 was dipped in pre-sterile saturated solution of magnous sulphate (MnSO4) and placed in the centre of Cr.Y.E.M.A petri plate previously spread inoculated with pure culture of Rhizobium species. The petri plate was incubated at 32OC, for 72 hours. In vitro experimental observations for of MnSO4 no bacterial growth upto 2mm radial zone was observed from the periphery of the filter paper disc. Here it is necessary to note that compound MnSO4 of commercial grade are generally produced by companies for farmers to use in their farms.  https://revistaschilenas.uchile.cl/handle/2250/222924 https://revistaschilenas.uchile.cl/handle/2250/222923 Species composition, diversity and distribution along an elevational gradient in Oak–dominated forests of Pir Panjal range in Jammu and Kashmir The study was conducted in Oak-dominated temperate forests of Rajouri district of Jammu and Kashmir (India) to assess the impact of altitude on species composition and diversity. A total of 32 woody species were encountered in the study area lying between 1200m and 2500m elevation. Three species of Oak viz. Quercus leuchotrichophora, Q. floribunda and Q. semecarpifolia were found to be dominant or co-dominant in the area. Q. leuchotrichophora shared the maximum acreage at all elevations. Its associate species, however, remained changing across the elevational gradient. Results revealed that the phytosociological characteristics of the studied forests vary remarkably in response to changes in altitude. Stem density decreased while as total basal area was found to increase with altitude. No of species was maximum at lowest altitude and steeply decreased with rise in altitude.  Diversity indices (Margelef Index, Menhinik Index, Shanon Wiener Index, etc.) showed evident decline in their values with altitude. However an unexpected dip due to anthropogenic pressure at middle elevational range was also observed. These forests demand urgent attention for their conservation and management. https://revistaschilenas.uchile.cl/handle/2250/222923 https://revistaschilenas.uchile.cl/handle/2250/185695 Environmental Impact Assessment from the Emission of Combined Natural Gas Cycle Power Plant  This paper analysed the potential environmental impact of the natural gas-fired generating station in the surrounding area. The primary objective of this Study includes determination of the present environmental condition, study of the project related activities and assessment of the potential environmental effects due to these specific activities. The major environmental disciplines studied include ground and surface water hydrology, climatic condition, quality of air, noise, terrestrial and aquatic ecology. The power plant produce electricity using natural gas as fuel and natural gas does not contain any sulphur contents. The main pollutants are nitrous oxide (NO2), particulate matter (PM), CO from exhaust gas coming out from the turbine through stack and their values are well below National Ambient Air Quality Standards (NAAQS). Noise and Vibration in the study area is assed to be minor due plant operation and does not impact on local faunal species. Heavy metal concentrations in the groundwater found below the acceptable limit and suitable for using domestic and irrigation purpose. The analysis revealed that surface water quality is suitable for aquatic flora and fauna. Study also indicates that power plant has no negative impact on climatic condition, air quality and aquatic eco system. https://revistaschilenas.uchile.cl/handle/2250/185695 https://revistaschilenas.uchile.cl/handle/2250/185696 Purchasing practice of young consumers towards green packaging: influence of value system with the mediating effect of attitude. The problem of climate change is not just because of utilizing the resources in excess and exploiting the nature, but the preference and consumption pattern of people have got changed in recent times. This consumption pattern has led in producing such large quantities of non-eco-friendly packaging materials that is creating serious environmental issues. The packaging materials are simply thrown out and become a source of massive portion of waste. Therefore, packaging materials should be considered a core factor in a way to deliver products to consumers securely. Understanding this, the knowledge and awareness on different kinds of packaging and their impact on environment the consumption patter of consumer need to be tested exclusively among the young consumers. This study was carried out in Thoothukudi Educational district, covering the schools of five different educational blocks in the district.  Collecting 818 samples, the study aims to understand the knowledge, awareness, consumption pattern, attitude, and the values of 9th to 12th standard students. A Structural Equation Modelling (SEM) was constructed to test the impact of Packaging Awareness (PKGA), Eco-centric Values (ECCV), Emotional Values (EMOV), and Social Values (SOCV) on the Purchase Decision (PUDE) of young consumers.  The model also tests the mediated effects of attitude on PUDE.  The study has found that the awarenesss on packaging strengthens the purchasing behaviour or the intention in young minds. The awareness on the impairments of polymeric packaging and the positve perception toward eco-friendly packaging drive the consumer intention towards green. In turn, these awarness have higher significant influence on changing the attitude of young consumers positively towards eco-friendly packaging. Hence, it is suggested that spreading awareness on the anti-environmental polymeric packaging and perceived benefits of eco-friendly packaging. Besides, emotional reactios do not significantly influence the purchase decision of them instead it is only expressed as a spur of the moment. In terms of attitude, similar to the previous studies, it was found that it strongly influences purchasing behaviour of the students and it also strongly mediat social, eco-centric values and awareness towards the purchase intention.  https://revistaschilenas.uchile.cl/handle/2250/185696