Journal of Earth, Environment and Health Sciences最新文献

{"title":"Saltgrass, a Minimum Water and Nutrient Requirement Halophytic Plant Species for Sustainable Agriculture in Desert Regions","authors":"M. Pessarakli","doi":"10.4103/2423-7752.181803","DOIUrl":"https://doi.org/10.4103/2423-7752.181803","url":null,"abstract":"Context: Desertification of arable lands due to global warming and water shortage mandates use of low-quality water for irrigation. Using low-quality water imposes more stress on plants which are already under stress. Thus, there is an urgent need for finding stress tolerant plant species to survive/sustain under such stressful conditions. Since the native plants are already growing under such conditions and are adapted to these stresses, they are the most suitable candidates to be manipulated under the minimum cultural practices and minimum inputs for use under stress. If stress tolerant species/genotypes of the native plants are identified, there would be a substantial savings in cultural practices and inputs in using them. Aim: This grass has multi usages, including animal feed, soil conservation, saline soils reclamation, use in desert landscaping, and combating desertification. The objectives of this study were to find the most salinity and drought tolerant of various saltgrass genotypes for use in arid regions, where limited water supplies coupled with saline soils result in drought and salinity stresses. Materials and Methods: Various genotypes of saltgrass were studied in a greenhouse either hydroponically in culture solution for salt tolerance or in large galvanized cans contained fritted clay for drought tolerance. For the salinity stress tolerance, twelve inland saltgrass clones were studied in a greenhouse, using hydroponics technique to evaluate their growth responses under salt stress. Four salt treatments (EC 6, 20, 34, and 48 dS/m salinity stress) were replicated 3 times in a randomized complete block design experiment. Grasses were grown under these conditions for 10 weeks. During this period, shoots were clipped bi-weekly, clippings were oven dried at 75°C and dry matter (DM) weights were recorded, shoot and root lengths were also measured. At the last harvest, roots were also harvested, oven dried, and DM weights were determined. Grass quality was weekly evaluated and recorded. Although all the grasses showed a high level of salinity tolerance, there was a wide range of variations observed in salt tolerance of these saltgrass clones. For the drought tolerance study, 21 saltgrass clones were studied to evaluate their growth responses under drought stress. Plants were grown under normal condition for 6 months for complete establishment. Then, they were deprived from water for 4 months. Plant shoots were harvested weekly and oven dried at 75°C for DM weight determination. At each harvest, percentages of plant green covers were also estimated and recorded. Both the shoot dry weights and the percent of plant visual green cover decreased as drought period progressed. Results: Although all the grasses exhibited a high level of drought tolerance, there was a wide range of variations observed in various clones′ responses. The superior salinity and drought stress tolerant genotypes were identified to be used for biological salinity contr","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"17 1","pages":"21 - 27"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90722791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Different Hormones on Some Vegetative and Reproductive Traits of Carnation (Dianthus caryophyllus L.)","authors":"D. Naderi, S. Rohani","doi":"10.4103/2423-7752.181801","DOIUrl":"https://doi.org/10.4103/2423-7752.181801","url":null,"abstract":"Aim: Carnation (Dianthus caryophyllus L.) is most famous for its use as a cut flower. This research was carried out in the research greenhouse of Islamic Azad University, Isfahan (Khorasgan) branch, to investigate the effect of different hormones on some vegetative and reproductive traits of carnation. Settings and Design: The experimental design was completely randomized design. Materials and Methods: Using different hormonal treatments included indole-3-buteric acid (IBA) (1,000 ppm, 2,000 ppm, 2,500 ppm, and 3,000 ppm), potassium salt of indole-3-butyric acid (KIBA) (1,000 ppm, 2,000 ppm, 2,500 ppm, and 3,000 ppm), and no treatment as control with three replications. Stem cuttings of carnation were supplied from \"Pink Nelson.\" The cuttings were exposed to different hormones for 10 s, and they were grown in coco peat+perlite (50%+50%) media. Plant irrigation was done with fogger systems. Some characteristics of the plant, such as the number of flowers, flower diameter, number of internodes, number of buds, flower stem length, number of leaves, and weight of aerial parts and root, were determined. Results: Statistical analysis showed that the number of flowers and weight of root of the plants treated with IBA and KIBA hormones were far greater compared to that of the controls. The highest of flower number, flower diameter, fresh and dry weight of root was obtained from IBA 2,000 ppm. The number of buds was significantly increased by the application of IBA at 1000 ppm and 2,000 ppm. And, KIBA at 1,000 ppm can increase the stem length of the flowers. Conclusion: Based on these results, it is suggested that the application of IBA and KIBA hormones improved quality of carnation flowers.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"13 1","pages":"10 - 14"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81357283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strengthening the Quality of Household Water Treatment Products on a Global Scale: World Health Organization","authors":"S. Shrivastava, P. Shrivastava, J. Ramasamy","doi":"10.4103/2423-7752.181806","DOIUrl":"https://doi.org/10.4103/2423-7752.181806","url":null,"abstract":"","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"12 1","pages":"39 - 40"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78667454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Education on Administrators and Service Providers′ Knowledge of the Family Physician Plan and Referral System in Urban Areas","authors":"H. Asgari, Maryam Azarnoosh, Maryam Kheirmand, M. Shiri, Mohsen Rohani, M. Khosravi, Rasol Hemamy","doi":"10.4103/2423-7752.170579","DOIUrl":"https://doi.org/10.4103/2423-7752.170579","url":null,"abstract":"Context: As one of the important changes in the health system, family physician plan, and referral system need to be taken into consideration, so as to make the administrators informed of the best ways of its implementation. Aims: This research has been carried out to study the effect of education on the knowledge level of administrators and service providers. Settings and Design: This study was analytical and interventional and conducted in Isfahan in 2012 with a statistical population of 2851 and a sample size of 118 people. Materials and Methods: This quantitative study was an interventional comparison group applying pre- and post-tests. Random sampling was used to select physicians, administrators and service providers in the family physician plan. A researcher-made questionnaire was filled out by the sample before and after the intervention, and the collected data were analyzed descriptively and inferentially. Statistical Analysis Used: The data were analyzed by using the SPSS 16 software and the mean scores of knowledge level, before and after the intervention, were compared. Demographic variables, also, were described and their relationship with the knowledge level scores was determined. A t-test was used, too. Results: The findings showed that the mean scores of knowledge level were 46.18 ΁ 15.37 before the intervention and 50.14 ΁ 14.46 after the intervention. Moreover, the t-test result, with 95% certainty, was significant (P = 0.043). Conclusion: Considering the meaningfulness of the results of t-test, it can be concluded that education has a high effect on the knowledge level of administrators and service providers. The results, also, showed that for having a more effective education, face to face education and active and practical teaching methods such as workshops and group discussions as well as different informative materials like brochures and media (radio, television and press) can be used. In addition to these factors, the age and work experience of people receiving education should be considered, too.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"44 1","pages":"47 - 51"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73576137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Assessment of Carrying-Capacity of Persian Gazelle in Sorkh-E-Hesar National Park, Iran","authors":"Elmira Kazemi Jahandizi, M. Kaboli, M. Karami, M. Soufi","doi":"10.4103/2423-7752.170590","DOIUrl":"https://doi.org/10.4103/2423-7752.170590","url":null,"abstract":"Introduction: Understanding food resources of large herbivores and their interactions with habitat is crucial for effective wildlife conservation in arid environments. However, the carrying capacity (CC) value may be influenced by a variety of human-induced perturbations, e.g., habitat fragmentation and potential competitors. The goitered gazelle (Gazella subgutturosa) inhabits a wide range of semi-desert and desert habitats in Iran. Materials and Methods: To estimate the CC of the species in Sorkh-e-Hesar National Park (SHNP), four different habitats were surveyed during the winter period in 2011-2012. The grazing behavior was recorded by direct observations. The grazing spots were identified and studied for vegetation types in 6 sites. In total, 80 plots and 10 T-square random points were sampled. Results: About 15 herbal species were identified in gazelle diet, with the main contribution of the family Poaceae. Dry weight and density of herbal species preferred by the gazelle were estimated. Moreover, the nutritional CC of the habitats and available forage during the winter period was determined using the cutting-weighting technique. The CC value of the goitered gazelle population was estimated as 56-107 individuals over 91.68 km 2 (0.62-1.17 individuals/km 2 ), which was estimated with the inclusion and exclusion of competitive herbivorous species, respectively.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"17 1","pages":"66 - 70"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83236483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Syncretist Effect of Organic and Chemical Fertilizers on Quantitative and Qualitative Properties of Spinach","authors":"S. Abdollahi, M. Jafarpour","doi":"10.4103/2423-7752.170592","DOIUrl":"https://doi.org/10.4103/2423-7752.170592","url":null,"abstract":"Aim: Spinach is one of the foliage vegetables from the beet family. This plant originated from Iran and is very important. In the current study, the syncretist effects of organic and chemical fertilizers on quantitative and qualitative properties of spinach were evaluated in the research center of the Islamic Azad University of Khorasgan. Materials and Methods: Treatments included horse compost, horse vermin compost, chicken compost, mushroom compost, mushroom vermin compost, mushroom vermin compost plus mushroom compost, chemical fertilizer, and soil without any fertilizer as the control group. All treatments were reported 4 times in 64 plots and each plot divided into two parts (8% and 12% of organic fertilizer). Conclusion: Our findings showed that the highest amount of Vitamin C and chlorophyll was in the control group. We also found that the highest amount of solid soluble content and pH were in 12% horse compost (9.3) and 8% horse compost (8), respectively. The application of organic fertilizers instead of chemical fertilizers not only increases the quality of product and improve the performance but also causes a permanent production.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"3 1","pages":"76 - 80"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75417538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interactive Effects of Vermicompost and Salicylic Acid on Chlorophyll and Carotenoid Contents of Petunia Hybrid Under Drought Stress","authors":"M. Saberi, F. M. Nezhad, N. Etemadi","doi":"10.4103/2423-7752.170580","DOIUrl":"https://doi.org/10.4103/2423-7752.170580","url":null,"abstract":"Aims: This study was conducted to investigate the effects vermicompost, drought stress, and salicylic acid on chlorophyll and carotenoid contents of petunia plants. Materials and Methods: Experimental treatments were drought stress including two levels with and without stress, four salicylic acid concentrations including 0, 50, 100, and 200 ppm and three levels of vermicompost (0, 10, and 20% w/w). The experiment was carried out as a completely randomized design with 3 replications. The application of vermicompost resulted in significant increases in contents of chlorophyll a, total chlorophyll and carotenoid compared to control. The content of chlorophyll a and total chlorophyll in 50 ppm salicylic acid was significantly greater than that in other treatments. However, the chlorophyll b and carotenoid content was lower in the in 100 ppm salicylic acid than in other treatments. Results: The results indicated that drought stress significantly reduced these pigments. The highest the content of chlorophyll a was observed at the rate of 10% vermicompost, 50 ppm salicylic acid, and no-stress condition. The treatment of 200 ppm salicylic acid at no-stress condition and rate of 20% vermicompost had the highest of chlorophyll b content. The highest the content of total chlorophyll was observed at the rate of 10% vermicompost, 50 ppm salicylic acid, and no-stress condition. The treatment of without salicylic acid and vermicompost at stress condition had the highest of carotenoid content. Based on the results of this experiment, application of salicylic acid and vermicompost improved the contents of chlorophyll a, total chlorophyll, and carotenoid of Persian petunia under drought conditions.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"30 1","pages":"52 - 57"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75019080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodiesel Production from Tobacco (Nicotiana Tabacum) Seed Oil","authors":"Khushbu Sharma, Madan Kumar Diwakar, Karunanithi Balakrishnan, S. Gopalakrishnapillai","doi":"10.4103/2423-7752.170588","DOIUrl":"https://doi.org/10.4103/2423-7752.170588","url":null,"abstract":"Introduction: The health impacts due to tobacco have lead to loss of lives and economy of the country. Tobacco seed oil can be an alternative source to biodiesel. This study aims to investigate the yield of the oil from tobacco seeds of Indian origin and to compare the properties of the biodiesel produced with American Society for Testing and Materials and conventional diesel. Methods: The tobacco seeds where grounded and the oil was extracted using n-hexane as a solvent in the soxhlets apparatus. The oil extracted was subjected to trans-esterification process to be converted into biodiesel. The biodiesel produced was tested for density, viscosity, iodine value, acid value, cetane index, gross calorific value, flash point and pour point and were compared with ASTM standards and conventional diesel. Results: The yield of oil from tobacco seeds in this study was 34 percent and the biodiesel yield was 85 percent. The properties were found to be comparable with ASTM standards and conventional diesel properties. Conclusion: The properties of tobacco seed oil were comparable with ASTM standards. Tobacco seed oil of Indian origin could be a viable source of biodiesel.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"21 1","pages":"61 - 65"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91548607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Sustainable Development Indicators (Social and Environmental): A Case Study - Parand Industrial Town","authors":"F. Razavian, M. Jafari","doi":"10.4103/2423-7752.170552","DOIUrl":"https://doi.org/10.4103/2423-7752.170552","url":null,"abstract":"Introduction: Currently, cities are responsible to provide rapidly growing population with housing, job, and services. In practice, sustainable development approach can be considered in the utilization of natural resources (renewable and nonrenewable), efficient and optimal utilization of resources, less environmental pollution, and sustainable society. Objective: The purpose of this study is to determine the factors effective on indicators of sustainable development and evaluate sustainable development in Parand Industrial Town. Materials and Methods: This study used an applied descriptive survey. Participants of this study included residents of Parand Town. Sample size (384) was calculated by Krejcie and Morgan Table using simple random sampling method. The collected data were analyzed by descriptive and analytic statistics including mean, median, and t-test. Results: Findings showed that sustainable development indicators (social and environmental) were evaluated average and above in Parand Industrial Town. Conclusions: Urban management is recommended to consider the above indicators to promote the development in Parand Town.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"37 5 1","pages":"43 - 46"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85071560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Biological and Organic Fertilizers on the Growth Parameters of Salvia Officinalis","authors":"H. Radnezhad, M. F. Abari, Masoumeh Sadeghi","doi":"10.4103/2423-7752.170591","DOIUrl":"https://doi.org/10.4103/2423-7752.170591","url":null,"abstract":"Context: This study examined the effect of biological and organic fertilizers on the growth parameters of an herb named Salvia officinalis. Settings and Design: Its characteristics include germination, number of leaves, length, and dry weight of root and shoot. A total of 11 treatments (4 replications) including a vermicompost treatment and a cow manure treatment (both at 25% and 50% levels); four vermicompost treatments of 25% and 50% levels mixed with Azotobacter and Azospirillum and three treatments of Azotobacter, Azospirillum, and control constituted the focal point of the study. Results: The results obtained from the statistical analyses performed at P ≤ 0.05 are as follows: (1) Azospirillum and 50% cow manure treatments had the most and least significant effects on germination and root length, respectively; (2) once combined with Azospirillum, 25% vermicompost treatment affected the length of the root and shoot more significantly compared to the vermicompost and Azospirillum treatments delivered individually; (3) the number of leaves and dry weight of root and shoot were not significantly different across the treatments; and (4) 25% vermicompost and 50% cow manure and Azospirillum treatments exerted the maximum influence upon the number of leaves and the dry weight of shoot and root. Conclusion: Although treatments had different effects, they were not significantly different. The 25% vermicompost treatment had a better effect than its 50% level counterpart.","PeriodicalId":15578,"journal":{"name":"Journal of Earth, Environment and Health Sciences","volume":"36 1","pages":"71 - 75"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89080621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}