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Environmental Science >
Environmental Science (General)
Asian Journal of Environmental Science
Publisher:Rakesh Kumar Singh
Editor in chief:Dr. P. Singh
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Effect Of Phosphorus And Sulphur Nutrients On Brassica Campestrisl. Variety Toria Under Dry Land Condition
Author:Lakshman Famda, Devendra Singh And Bhanwar Lal Jat
Volume: 12 | Issue no: 1-2017 | Pagination: 69-82
The experiment was laid out in a Factorial Randomized Block Design with twelve treatments and replicated thrice. Results indicate that the effect of phosphorus and sulphur nutrient with different treatments. Significant effects were observed in plants growth attributes due to presence of phosphorus and uptake of phosphorous increased due to presence of sulphur ultimately resulting in good yield. However, plant heights (165.00 cm), number of branches plant-1 (7.33), plant dry weight (g) (21.27), crop growth rate (g m-2 day-1) (19.90), relative growth rate (g g-1day-1) ( 0.055), number of siliqua plant-1, (329.13), number of seeds siliqua-1 (18.73), test weight (g) (3.83), seed yield (t ha-1) (1.96), harvest index (%), (19.89 ) and oil content (%)(1.22) were found significantly affected by the application of phosphorus and sulphur and cost benefit ratio was also found (2.24) on higher side.
Barriers And Opinion Of Buildres Regarding Green Building And The Extent Of Greeness Of The Buildings Constructed By Them:A Study Of Their Interrelationship
Author:Shilpi Saraswat And Maneesha Shukul
Volume: 12 | Issue no: 1-2017 | Pagination: 60-68
The global environment is affected by the irreversible damage caused by the human activities. The increasing rate of real estate industry everywhere is creating pressure on its natural resources and environment. When a building is constructed it effects environment right from excavation of construction sites, construction process, to operation of buildings which requires significant input of energy, water, raw materials also responsible for lots of waste and emissions. Escalating concern for the environmental impact of real estate has compelled the formulation of sustainable solutions by adopting the concept of constructing green buildings. It is considered as integrated approach towards minimising the negative impacts of construction and its operations on the environment. Green buildings are designed and constructed in such a way that it increases the whole lifecycle performance as well as conserve resources. It has been observed that Vadodara city has witnesses a remarkable growth in the construction of commercial as well as residential sectors. Hence, a study was conducted firstly, to find out the opinion of the builders regarding adoption of green building concept in their construction of residential sectors and the barriers faced in adopting the same and secondly to find out the extent of greenness of the selected houses constructed by these selected builders. The data were gathered through a questionnaire from a sample of 75 builders through convenience sampling. The data were also gathered through an observation check list from a sample of 220 existing residential buildings which were constructed between January, 2005 to December, 2013 selected through purposive sampling. The findings of the study revealed that majority of the builders were middle aged. Majority of the builders faced lack of technical knowledge amongst their project team, contractors and clerk and lack of interest in implementing green building concept as high extent of barrier in adopting green building design and construction. Majority of the builders had somewhat favourable opinion regarding green building. Majority of the houses had moderate extent of greenness for all the sub aspects. Nearly three fourth of the respondents? houses had moderate extent of greenness on the overall scale. The results of mean scores were found highest for the sub aspect ?Indoor Environment Quality? and lowest for ?Innovative Ideas? sub aspect. The builders can be made aware through an educational programme given by the educational institution about the impact of the buildings on the health of the occupants and to construct a building which incorporates features of green building.
Economic Growth And Environmental Degradation At Indian Context : Environmental Kuznets Curve (Ekc) Approach
Author:D. K. Vijayalaxmi And V. Saravanakumar
Volume: 12 | Issue no: 1-2017 | Pagination: 57-59
Environmental pollution is an important issue in the process of economic growth. The deterioration of environment begins to have direct impact on the quality of human life or even a threat to the survival of human being. This paper investigates the relationship between per capita gross domestic product (GDP) and per capita CO2 emissions as hypothesized by Environmental Kuznets Curve (EKC) holds in the long-run or not. Co-integration regression methodology is employed for examining the long run relationship between the variables. For this purpose time series data on GDP and CO2 emission along with foreign direct investment (FDI) and population density (PD) are been taken from year 1991 to 2015. The results revealed that there is no inverted ?U? shaped relationship between per capita GDP and per capita CO2emissions i.e., EKC hypothesis has failed at Indian condition to explain the inverted relationship between GDP and CO2 emission . It indicates that increase in per capita GDP strongly leads to economic growth and welfare of the people while it doesn?t cause CO2 emissions in India.
Hilsa Fish:An Endangered Fish Due To Climat Change And Over Exploitation
Volume: 12 | Issue no: 1-2017 | Pagination: 53-56
Hilsa is into breeding migration in three major river systems of the Indo-Gangetic and Brahmaputra river network viz., Ganga, Brahmaputra and Meghna. In Persian Gulf this fish migrates to Arvand river and Bahmanshir river for spawning. The main peak season is September and October in all environments. Two to three years into their life cycle the hilsa migrate into the freshwater rivers upstream from the Bay of Bengal in order to spawn. The main objectives of this paper are: to study the situation of Hilsa in Bangladesh and India and to identify the reasons for reducing numbers of hilsa.
Biobleaching Of Banana Fibre Pulp With Incorporation Of Xylanase Enzyme Fromaspergillus Oryzae
Author:Pratibha Baral, R.K. Jain And A.K. Dixit
Volume: 12 | Issue no: 1-2017 | Pagination: 48-52
The potential of extracellular xylanase produced by Aspergillus oryzae through solid state fermentation was investigated on banana fibre pulp bleaching in association with conventional bleaching with chlorine dioxide. The maximum enzyme production was obtained at 30°C after 48 hrs of incubation using wheat bran substrate. Highest enzyme activity 1136 IU/g dry substrate was found under optimized condition. Banana fibre pulp were pretreated with different dose of xylanase enzyme before the conventional bleaching sequence. Xylanase pre-treatment reduce the kappa no and enhance the optical and physical properties of pulp. The maximum reduction in kappa no were 1.3 unit at the dose of 30 IU/g. Xylanase treatment also improve burst index, tensile index and double fold by11.81 per cent, 5.7 pera cent and 2.8 per cent, respectively.
A Study On The Attitude Level Of Male And Female Teachers Regarding Environmental Attitude
Author:Sunita Chouhan And Bharti Bhatnagar
Volume: 12 | Issue no: 1-2017 | Pagination: 43-47
Meaning of the term ?Environment? is very wide in the sense that it is taken into account of all those factors which directly or indirectly have a bearing upon the natural surroundings of human beings. The stockholm conference recommended that UNESCO and the other international agencies will establish an international programme in environmental education. The programme will be interdisciplinary in approach to be organized in school and out of school encompassing all levels of education, directed towards the general public in particular the ordinary citizens living in both rural and urban areas, youth and adults alike, with a view to educating them to manage and protect their achievement (Sharma and Merle, 1990). Today man is living in a world of crises. The social, economic, political and value crisis are some of the threats that are quite alarming. Added to this, in the recent decades, the environmental crisis has become another important factor that has made everyone in the world to think of its gravity. The role of education in understanding protecting and solving problems related to environment has been realized all over the world since 1970. Education for environment might succeed if it deliberately directed towards school children. Therefore, the present study was undertaken to assess and compare the environmental attitude of male and female teachers (30-40 years) regarding selected areas of environmental attitude in senior secondary schools. The total sample for the present study consisted of 120 randomly selected respondents i.e. 60 males and 60 females from randomly selected fifteen schools of Bikaner city. Data were collected through the standardized environmental attitude scale, Taj (2001). The major findings revealed that majority of the teachers were found to have avourable attitude towards environment and there was no significant difference found between the level of attitude of male and female teachers in all the areas (health and hygiene, wild life, forests, polluters and environmental concern) except population explosion on environmental attitude scale. Thus, it can be concluded that although the teachers had awareness and favorable attitude about different areas of environmental attitude but even, then, it was not sufficient and it was felt that there was a need for imparting knowledge in some of the areas such as population explosion (family planning, poverty etc.).
Framework And Sustainable Audit For The Assessing Of The Ganga River Ecosystem Health At Allahabad, India
Author:Sarita Tripathi, A. Gopesh And Amitabh Chandra Dwivedi
Volume: 12 | Issue no: 1-2017 | Pagination: 37-42
Fishes are a prominent feature in most national economics and employments. Riverine ecosystems present unique opportunity to employment of fishers and youth community in the Ganga basin, India. Present study was undertaken to fish catch from the middle stretch of the Ganga river at Allahabad, India during the period July 2014 to June 2015. Annual fish landing demonstrated that the catch was dominated by miscellaneous group (22.16 kg day-1) followed by Oreochromis niloticus (12.76 kg day-1) and Sperata seenghala (12.63 kg day-1) and they accounted for 23.19 per cent, 13.36 per cent and 13.21 per cent, respectively. In case of Indian major carps, Cirrhinus mrigala shared maximum contribution with 7.73 kg day -1 (8.09%). Catla catla and Labeo rohita shared 1.45 (1.51%) and 2.35 kg day-1 (2.46%), respectively. The landing of fishes fluctuated from season to season from the Ganga river at Allahabad, India. For conservation point of view Cyprinus carpio and O. niloticus species should be monitored in the Ganga river. Both species are very harmful for the Ganga river ecosystem.
Regenerating Eutrophic Aquatic Ecosystem Through Hydrophytes
Author:V. A. Meshram
Volume: 12 | Issue no: 1-2017 | Pagination: 31-36
As the world facing the problem of eutrophication and it is decreasing the life of lakes, this will produce the shortage of freshwater. Hydrophytes are one of the cheaper and best options for regenerating eutrophic lake. Model eutrophic aquatic ecosystems was designed for bioremediation purpose, for use of hydrophytes, a freshwater static model ecosystem was established. Glass aquarium measuring 180 x 45x 45 cm was used as an ecosystem chamber. Fifteen kg of black soil from Wadali Lake was added to make a 4 cm bed in the aquarium. Different hydrophytic plants like Ecchornia, Pistia, Chara, Vallisneria, Hydrilla, Naja were introduced in the aquarium. Then it was filled with 200 L of water. Afterwards certain species of zooplankton and phytoplankton, snails, Chironomous larvae, Rasbora fishes were introduced in the aquarium. Water sample was analyzed for one month at one day interval. In a simulated experimental eutrophic model aquatic ecosystem, the BOD was depleted and the nutrients like phosphates, sulphates and nitrates were reduced significantly.
Effect Of Environment On Repetitive Strain In Grape Cultivation
Author:Savita Kumari And Manju Mehta
Volume: 12 | Issue no: 2-2017 | Pagination: 23-30
The aim of this study was to find out the effect of environment on repetitive strain in grape cultivation. The research designs comprised on field study conducted on 15 respondents were engaged on grapes cultivation activities. Physical fitness was determined by calculating the physiological parameters i.e. blood pressure, body temperature, pulse rate and maximum aerobic capacity (VO2 max). Environmental parameters measured through repetitive strain exertion, ART tool and strain index. The results indicated that mean height and weight of grape workers involved in grape was 159.9 cm and 64.2 kg, respectively. Body mass index (BMI) was observed as 21.8 kg/m2. Fat percentage was worked out to be 29.9 per cent. Hence, LBM (Lean body mass) was 44.1 kg with variation of ±19.3kg. Aerobic capacity (VO2 max) was found to be 31.8 ml/kg.Śmin exhibiting that the subjects were having good health. Conclusively environmental parameters were directly affecting the health status of workers in terms VO2 max and BMI and (ART) and strain index. On the basis of total repetitive strains score in grape cultivation was maximum in pruning (239.5), followed by harvesting with total repetitive strain load (108.4).
Orobanche Infestation In Indian Brassica Juncea L. In Ajmer Districts Of Rajasthan And Its Management
Author:Hira Lal, Devendra Singh And Bhanwar Lal Jat
Volume: 12 | Issue no: 1-2017 | Pagination: 1-22
Orobanche aegyptiaca started to emerge above ground 40 DAS of Indian mustard. Significant difference was observed in number of Orobanche shoots m-2, fresh and dry weight of Orobanche shoots m-2 and visual control of Orobanche in mustard crop due to different treatments. At 60DAS, treatments T3, T7, T8 and T9 were observed most effective with no shoots, fresh weight and dry weight of Orobanche m-2, hence, providing 100 per cent control of Orobanche at 65DAS of mustard. At 90DAS, 120DAS and harvest, treatment T9 was found statistically at par with T7 and T8 in reducing the number, fresh and dry weight of Orobanche shoots, hence, providing the maximum visual control at 95, 125DAS and at harvest, respectively. Increasing the application of nitrogen in mustard decreased the population, fresh weight and dry weight of Orobanche and increased the control of Orobanche in T9over T8 probably because of detrimental effect of the nitrogenous fertilizers on the parasitic infestation. A significant difference in plant height and dry matter accumulation plant-1 of mustard was observed due to different treatments. The plant height and dry matter accumulation plant-1 in treatment T9 i.e. 125 per cent of recommended fertilizer + foliar spray of glyphosate at 25 and 50g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively was higher due to higher dose of N and P and excellent control of Orobanche during its life cycle. Different treatments resulted in significant difference in crop growth rate of Indian mustard from sowing upto 130DAS and thereafter it remained non-significant. Among different treatments, 125 per cent of recommended fertilizer + foliar spray of glyphosate at 25 and 50g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively (T9) resulted in highest CGR which might be due to better control of Orobanche coupled with beneficial effects of higher dose of N and P on mustard at active vegetative stages as a result of enhancement in cell multiplication, cell elongation and cell expression in the plant body which ultimately increased the CGR. Among the different treatments, number of primary branches at harvest stage were found maximum in treatment T9 which was at par with treatment T7 but significantly higher over rest of the treatments. Number of siliquae plant-1 at harvest stage were recorded maximum in treatment T9 which was at par with treatment T7 but significantly higher over rest of the treatments. T9 recorded maximum number of siliquae because higher nutrients help in more number of branches, mainly the secondary branches and resulting higher number of siliquae plant-1 at higher dose of fertilizers. Similarly, number of siliquae branch-1 were maximum under 125 per cent of recommended fertilizer + foliar spray of glyphosate at 25 and 50g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively (T9) which was significantly superior over all other treatments. Maximum siliqua length (cm) and 1,000-grain weight (g) was observed with 125 per cent of recommended fertilizer + foliar spray of glyphosate at 25 and 50 g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively (T9) which was at par with foliar spray of glyphosate at 25 and 50g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively (T7) and superior over all other treatments. Similarly, grains siliqua-1 were recorded maximum in treatment T9 which was found statistically at par with T2, T3, T6, T7 and T8 and significantly higher than other treatments. Grain yield and biological yield of Indian mustard varied significantly due to different treatments. Treatment T9 i.e. 125 per cent of recommended fertilizer + foliar spray of glyphosate at 25 and 50g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively, produced highest grain yield and biological yield which was at par with T7 i.e. foliar spray of glyphosate at 25 and 50g ha-1 + 1.0% solution of (NH4)2SO4 at 25 and 55DAS, respectively. Treatment T9 and T7 produced 88.7 and 72.9 per cent more grain yield, respectively than weedy check (T11). The combined effect of higher dose of fertilizers and maximum control of Orobanche in treatment T9 provided ideal conditions for growth of mustard crop resulting in higher plant height, more primary and secondary branches plant-1, number of siliquae plant-1, more number of grains siliqua-1 and higher 1000-grain weight ultimately increased the grain and biological yield.
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