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Search Results: 1 - 10 of 1726 matches for " Milovanovi? Jelena "
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Electrical conductivity test for Serbian spruce seed quality estimation
Iveti? Vladan,MilovanoviJelena
Glasnik ?umarskog Fakulteta , 2005, DOI: 10.2298/gsf0591127i
Abstract: In this paper, for the firs time in our country, electrical conductivity test was used for seed quality estimation. Since this test is not standardized for most of tree species, main goal of this paper was to investigate possibility of its use for estimation of potential germination rate of Serbian spruce seed, like model species. Negative correlation with great statistical significance (r=-0.9003) was found between specific electrical conductivity and germination rate. On this basis, authors were give proposal for determination of Serbian spruce seed quality, after measuring of electrical conductivity. Results show great potential of this method for seed quality estimation, and justify further work on its standardization for Serbian spruce, and other tree species as well.
Comparative analysis of gynaecological status of workers from textile and metal industry
Milovanovi? Aleksandar,Dotli? Jelena,Jakovljevi? Branko,Milovanovi? Jovica
Srpski Arhiv za Celokupno Lekarstvo , 2008, DOI: 10.2298/sarh0804131m
Abstract: Introduction Female workers in textile and metal industry are exposed to various physical and chemical hazards that can lead to the occurrence of gynaecological diseases. Objective The aim of this study was to estimate the frequency of gynaecological diseases among workers of textile and metal industries. METHOD The investigation comprised 197 female workers, 148 from textile and 49 from metal industry, aged from 26 to 57 years. All subjects were hospitalized based on non-gynaecological diagnoses. Gynaecological diagnoses included: tumours of the genital organs and breasts, cervical ectopy and lacerations, inflammatory diseases, disturbances of static of genital organs, cysts, and irregularities of menstrual cycle. Results Textile workers were significantly younger than metal workers, but the groups were comparable according to total and exposure work-time, qualifications and diagnosis on hospital admission. Gynaecological diseases were diagnosed among all investigated subjects. About 80% were diagnosed with tumours and inflammatory diseases. A highly statistically significant difference was observed among groups according to the presence of cervical ectopy and lacerations, which were more frequent among textile workers. Conclusion Comparison of gynaecological status of workers revealed that, among textile workers, cervical ectopy and lacerations were more frequent than among workers in metal industry. .
Conservation and directed utilization of forest genetic resources
?ija?i?-Nikoli? Mirjana,MilovanoviJelena
Glasnik ?umarskog Fakulteta , 2007, DOI: 10.2298/gsf0795007s
Abstract: Forest genetic resources represent the genetic diversity contained in the thousands of species of forest trees on the earth. their conservation is a set of activities and strategies, which are performed in the aim of ensuring the continued existence, evolution and availability of these resources for the present and future generations. the aim of genetic resource management is the enhancement of conditions for the continual evolution of the species which is the defensive mechanism of the organisms in the struggle with environmental changes.
Molecular markers applying in forest trees gene pool conservation
MilovanoviJelena,?ija?i?-Nikoli? Mirjana
Glasnik ?umarskog Fakulteta , 2009, DOI: 10.2298/gsf0999101m
Abstract: Many studies performed during the last years demonstrated the usefulness of neutral molecular markers in the field of conservation and population genetics of forest trees, in particular to understand the importance of migration patterns in shaping current genetic and geographic diversity and to measure important parameters such as effective population size, gene flow and past bottleneck. During the next years, a large amount of data at marker loci or at sequence level is expected to be collected, and to become excellent statistical power for the assessment of biological and evolutionary value.
Model of Serbian spruce genetic diversity conservation applying MPBS method
MilovanoviJelena,?ija?i?-Nikoli? Mirjana
Glasnik ?umarskog Fakulteta , 2007, DOI: 10.2298/gsf0795119m
Abstract: Multiple Population Breeding System (MPBS) means that the genetic conservation population is split into subpopulations with each having an effective population size of approximately 50 individuals (Namkoong, 1984). The main reasons for development of the MPBS is the need for preparation of adequate breeding strategy which would be useful in future breeding goals and environmental conditions changing processes. MPBS is dynamic and allows for adaptation via natural selection or breeding. In contrast to hierarchical systems that require several generations of back-crossing to introduce genes into the breeding population immediate changes of breeding goals are possible in MPBS breeding. The cost of running a MPBS programme is not expected to differ much from running a breeding programme with just one large breeding population. MPBS is very appropriate conservation method for endangered species due to future environmental and breeding aims changes. In this paper suggestion for conservation and improvement of Serbian spruce genetic diversity applying MPBS has been explained.
A contribution to the study of hackberry (Celtis occidentalis L.) juvenile stage of development
?ija?i?-Nikoli? Mirjana,Kne?evi? Radmila,MilovanoviJelena
Glasnik ?umarskog Fakulteta , 2008, DOI: 10.2298/gsf0897057s
Abstract: Seed material for the study of hackberry characters and variation in the juvenile stage of development was collected in the micropopulations on the territory of the town Sombor. The study results refer to different stages of early ontogeny, which are presented at 7 levels. The observed variation at the levels of seeds, seedlings, 1-year-old and 2-year-old plants, as well as the high i.e. low values of the analysed morphometric characters of individual half-sib lines, are a good base for the study and the adequate utilisation of the species genetic potential, in harmony with the basic principles of breeding and the enhancement of reproductive material quality.
Genetically modified trees: State and perspectives
Noni? Marina,Vettori Cristina,Boscaleri Fabio,MilovanoviJelena
Genetika , 2012, DOI: 10.2298/gensr1202429n
Abstract: Genetically modified trees are the result of modern plant breeding. Its introduction into the environment for experimental purposes or wider cultivation is defined differently from country to country. Public opinion is divided! Conducted research are part of the activities within the COST Action FP0905 Biosafety of forest transgenic trees”, which aims to collect information and define the scientific attitude on genetically modified trees as a basis for future European Union (EU) policy in this field. The collected information refer to eight countries: four EU member states (Italy, Slovenia, Romania and Bulgaria) and four countries in the process of pre-accession (Croatia, Montenegro, Serbia and Bosnia and Herzegovina). A comparative analysis involved the state of forest resources (area of forest land and forest cover), forestry legislation, legislation relating to genetically modified organisms and the general public attitude on this issue. The collected information provide a good basis for understanding this issue in order to define a clear scientific attitude as a recommendation. [Acknowledgements. The authors wish to acknowledge the support of the COST Action FP0905 Biosafety of forest transgenic trees” for assigned STSM and financial support, also special thanks to the Host institution (Tuscany Region - Directorate General) in Florence for kind cooperation. The performed research was partially conducted within the Project Establishment of Wood Plantations Intended for Afforestation of Serbia“ TP 31041]
Allele polymorphism of Nad1 gene of the Serbian spruce mitochondrial genome
MilovanoviJelena,Isajev Vasilije,Krajmerová Diana,Paule Ladislav
Genetika , 2007, DOI: 10.2298/gensr0701079m
Abstract: Serbian spruce (Picea omorika /Pan ./Purkyne), as the Balkan Peninsula endemic and the Tertiary relic, is a species whose survival is threatened by the constant restriction of its range caused by the global changes of environmental conditions and the adverse human impacts. The Serbian spruce seedling seed orchard at Godovik represents the base for the improvement of the production of the selected seeds of this species, which can be used as the initial material for the extension of its range. The allele polymorphism of the mitochondrial nad1 gene was analyzed in five different Serbian spruce phenogroups of which the orchard is established. The obtained results are a contribution to a closer study of the causes of the postglacial intraspecific differentiation of Serbian spruce and the creation of the above phenogroups. The study results are significant for further breeding of this species based on the better knowledge of the genetic structure of the species, its directed utilisation and the widening of its range. .
The genetic potential of mother trees as a basis for Acer pseudoplatanus ‘Atropurpureum’ plant production
?ija?i?-Nikoli? Mirjana,Ocokolji? Mirjana,Viloti? Dragica,MilovanoviJelena
Archives of Biological Sciences , 2011, DOI: 10.2298/abs1101145s
Abstract: Sycamore maple (Acer pseudoplatanus L.) is one of the most valuable species of Serbia’s noble hardwoods. Based on the results of previous research, it can be concluded that this is a species with a pronounced ecological plasticity and high genetic potential. From the aspect of ornamentalness, one of the most frequent cultivars in urban green spaces and tree rows is the cv ‘Atropurpureum’, also known as ‘Spaethii’ or ‘Purpureum’. It is distinguished by dark green leaf adaxials and purple undersides, which give the crown an extraordinarily attractive appearance. The genetic potential of the analyzed mother trees can be used for the mass production of the Acer pseudoplatanus ‘Atropurpureum’ and Acer pseudoplatanus plants needed for urban green area maintenance and creation of tree rows. Special attention should be paid to the potential of mother trees 5 and 3; their descendants, along with purple leaf undersides, also have high average height values for five-year old plants.
Ecotypical characterization of genetic variation of beech provenances from south-eastern Europe based on the morphometric characteristics of leaves
?ija?i?-Nikoli? Mirjana,MilovanoviJelena,Noni? Marina,Kne?evi? Radmila
Glasnik ?umarskog Fakulteta , 2012, DOI: 10.2298/gsf1206197s
Abstract: The research was conducted on a provenance test of beech established in the Educational-research centre Majdanpe ka domena” - Faculty of Forestry, University of Belgrade. This paper presents the results of an analysis of the morphometric characteristics of leaves, at the level of 10 provenances in the juvenile developmental stage, originating from South-Eastern Europe. Herbaria material was used to measure the following parameters: leaf length, leaf width, petiole length, leaf base width at 1 cm (from petiole base), the number of veins -on the left, the number of veins - on the right, and distance between the 3rd and 4th vein - on the left. Based on research results, it can be concluded that the obtained differences between the mean values of all measured foliar characteristics of the analyzed provenances are statistically significant, and that there is significant correlation between the length and width of leaves and the Ellenberg’s quotient (EQ). The relationship between the adaptive traits of beech from different provenances and ecological parameters of their seed source stands indicates genetic differentiation of beech, as a consequence of the population adaptation to local environmental conditions. Therefore, in the future, ecological criteria must be a priority in the selection of seed sources and planting materials, with special consideration of the global climate change. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istra ivanje klimatskih promena na ivotnu sredinu - pra enje uticaja, adaptacija i ubla avanje]
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