{"title":"Review on the Effect of Seed Source and Size on Grain Yield of Bread Wheat (Tritium Aestivum L.)","authors":"Gadisa Alemu","doi":"10.23880/jenr-16000155","DOIUrl":"https://doi.org/10.23880/jenr-16000155","url":null,"abstract":"Wheat (Tritium aestivum L.) is the most important crop and among the major three cereal crops that provides 20 percent of the total energy requirement in human food. It is a major crop contributing importantly to the nutrient supply of the global population and has the highest content of protein of all the staple cereals and contains essential minerals, vitamins, and lipids. It shows wide adaptation to diverse agro-ecological conditions and cropping technologies. The productivity of the crop remains low (2.4 tons ha-1) in the Ethiopia as compared to the world average yield (3.19 tons ha-1). The low yield per hectare is attributed to many factors, such as seed source, unavailability of quality seed, use of poor quality seeds, inappropriate seed size and seed rate are some of the factors. Seed source influenced growth and yield during the growing season but the response depended on seed size and variety. Seed quality is very important to optimum growth and yield production in farm which influenced by many factors such as genetic characteristics, viability, germination percent, vigor, moisture content, storage conditions, survival ability and seed health. High quality seed is important to ensure maximum seed germination and seedling vigor, which is turn is instrumental in achieving maximum yield. poorer quality seeds show low viability, reduced germination and emergence rates, poor tolerance to sub optimal conditions and low seedling growth rates. The seed quality is also reflected in the final growth, maturity of plants, their uniformity and stability of yield. Seed size is an important physical indicator of seed related to yield, market grade factors and harvest efficiency. Seed size was the trait that was most consistently associated with yields. Seed size was the most consistent seed trait that influenced growth and yield. Grain yield of wheat significantly increased by increasing seed size. The use of high quality seed and large seed size increase the grain yield of bread wheat.","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121987234","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":"Local People's Perception on Climate Change, its Indicators and Adaptation Strategies in the Chitwan-Annapurna Landscape, Nepal","authors":"Bhishnu P Bhattaraj","doi":"10.23880/JENR-16000153","DOIUrl":"https://doi.org/10.23880/JENR-16000153","url":null,"abstract":"","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128315780","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":"Characterization of Soil Physicochemical Properties and its Implications to the Water Quality of Elbahi Dam, Somali Region, Ethiopia","authors":"Yohannes Gerezihier G","doi":"10.23880/jenr-16000204","DOIUrl":"https://doi.org/10.23880/jenr-16000204","url":null,"abstract":"","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126907655","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":"Field Persistence of Some Entomopathogenic Nematodes","authors":"C. M","doi":"10.23880/jenr-16000185","DOIUrl":"https://doi.org/10.23880/jenr-16000185","url":null,"abstract":"","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127521314","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 Research of the Radial Growth of the Flora Species which do not Have Special Protection on the South Hillsides of Greater Caucasus","authors":"Baghirova Sb","doi":"10.23880/JENR-16000188","DOIUrl":"https://doi.org/10.23880/JENR-16000188","url":null,"abstract":"For the restoration of the soil and climatic conditions of the country, the protection as well as restoration works of existing forests together with the establishment of new forests is a requirement of the day. There has been an extensive research for studying biometric analysis and dendrochrono-lgy of processes occurring in populations of rare species of natural and cultural flora. The possibility to increase tree types that meet predetermined qualities will enable the wood to be used effectively. For this reason we have dedicated this research to the dendrochronolo-gy of the Quercus iberica M.Bieb and Caprinus betulus L. which grow in the forests in Zagatala region. The study of species has created conditions for the study of anthropogenic impact on the vegetation of Azerbaijan, the monitoring of the vegetation of specially protected areas, the study of the phenogenetic diferentetation of the populations and recultivation of technogen landscape.","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128268431","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":"White Storks Ciconia ciconia L. became Victims of Environmental Pollution of Ararat Plain of Armenia","authors":"K. Aghababyan","doi":"10.23880/jenr-16000269","DOIUrl":"https://doi.org/10.23880/jenr-16000269","url":null,"abstract":"The novelty threat to White Storks Ciconia ciconia in Armenia was investigated in 33 villages of Ararat Plain in 2019-2021. The Storks were becoming smeared with the undetermined agent of plant oil and/or fish fat nature, which was impeding their flying abilities. In 2019 smeared Storks were found in five villages, with total number of 125 smeared nestlings and 84 smeared adult storks. In 2020 smeared Storks were found in 15 villages, in 95 nests, totaling to 285 smeared nestlings and 192 smeared adults. In 2021 smeared Storks were found in 28 villages, in 178 nests, totaling to 534 smeared nestlings and 356 smeared adults. Average percent of the polluted nestlings grew from 5% in 2019 to 21% in 2020 (t=3.62, df=32, p<0.001), and then to 58% in 2021 (t=7.17, df=32, p<0.05). The most likely causes of environmental pollution and Storks’ smearing are Sturgeon farms and producers of canned food. Current legislation provides with necessary tools to deal with possible polluters; however there is a need to enforce the laws. Therefore, a number of short-term and long-term measures are suggested to improve the situation.","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124716617","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":"A Necessity to Specify the Species and Geographical Indication Tag of Trichoderma, a Biocontrol Agent for Soil Borne Plant Pathogens, on Commercial Packets of the Product","authors":"Borkar Sg","doi":"10.23880/JENR-16000219","DOIUrl":"https://doi.org/10.23880/JENR-16000219","url":null,"abstract":"Research on Trichoderma species for its in vitro efficacy against soil borne fungal plant pathogens have been widely published for more than half a century and in vivo efficacy has also been reported for several species and their strains in their geographical locations of prevalence. However, the efficacy of a particular strain or an isolate of a species across the geographical location is not yet fully explored. This is the reason, why biocontrol agent Trichoderma has not yet achieved its impact in the agricultural production system as compared to commercial synthetic fungicides for control of plant pathogens. The available literature indicated that several environmental factors, soil ecology and geographical location specificity plays an important role in the efficacy of Trichoderma as biocontrol agent in the control of soil borne plant pathogens. Nevertheless, commercial formulation product of different Trichoderma species or unknown species are available as biocontrol agent of plant pathogens around the world, notably to be used in the organic farming system. Though different Trichoderma species are registered for their bio-formulation products in different countries, seldomly the name of a species of Trichoderma and its geographical indication tag are mentioned on the packet of commercial formulation. The geographical indication tag is available for the crop plant varieties/cvs, but not for Trichoderma species and strains; the crop varieties are recommended specifically for the particular geographical region or state or for whole the country based on the research trials, but this phenomenon is not in operation for release and recommendation of biocontrol agent. The Trichoderma species in the commercial formulation may be geographical specific for their biocontrol efficacy as evident in our research. Therefore, In the free trading era and movement of products across the regions, it becomes difficult to know that in the commercial formulation which species of Trichoderma is used as a biocontrol agent, its geographical indication tag and for which geographical area the biocontrol agent is recommended to work efficiently. Some species of Trichoderma are specific and effective for the control of certain soil borne fungal and nematode plant pathogens while other species are not effective for the same. Therefore, it seems to be important to specify the species of Trichoderma and its geographical indication tag on packet of commercial formulation product and the recommended geographical region for its biocontrol efficacy so as to derive the maximum advantage of the biocontrol product and the research carried out in this field.","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123529279","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 Thermal Ecology of Snakes in Bertoua Municipality, Eastern Region, Cameroon","authors":"Maurice Me","doi":"10.23880/jenr-16000175","DOIUrl":"https://doi.org/10.23880/jenr-16000175","url":null,"abstract":"Climate generally and temperature in particular have long been recognized as important determinants of the distribution, abundance, and activity of animals. Thus, the maintenance of appropriate body temperatures affects both the fitness of individual snakes and the viability of their populations. Thermoregulation is probably the most important factor affecting habitat selection in snakes. Hence, this study is aimed at exploring the role of weather condition to the ecological niche of snakes in Bertoua forest area. The research data collection was done by the use of check-sheets for a period of one month from 7:30am-5:30pm each day in the forest area of Bertoua. A random spot observation of 444 snakes was made on 6 species, black cobras (Naja melanoleuca), green mambas (Dendroaspis viridis), vipers (Bitis gabonica), green-tree snakes (Dendrelaphis punctulatus), small brown snakes (Dendrelaphis shokan), and python (Python regius). Ecological factors such as weather condition, vegetation, landscape, location, and photo-period were also taken into account. The survey revealed an ecological relationship between weather condition and various species of snakes in the study area, χ2 = 11.244 df=10, P<0.05. Besides, the results revealed an association between landscape and snake species χ 2 = 21.142 df=15 P<0.05. Moreso, photo-period significantly associated with weather condition, χ 2 = 8.907 df=4, P<0.05. The location of snakes significantly associated with the species, χ 2 = 191.344 df=5, P=0.00. Furthermore, snake location and weather condition revealed a significant link, χ 2 = 5.546 df=2, P<0.05. Finally, weather condition and landscape showed a significant dependency, χ 2 = 41.316 df=6, P=0.00. Reptiles are found in a range of diverse environments from the arctic to the equator. Their success and dispersion is dependent on access to external heat sources for their internal processes to operate sufficiently such as homeostasis.","PeriodicalId":447148,"journal":{"name":"Journal of Ecology & Natural Resources","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120994190","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}