Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:12004
P. Burduhos, Ioan Oroain, I. Covrig, C. Șulea
The history of the pine forests in our country has not only a decorative action, but also important consequences on soil stability and air quality n large areas. As all other forest tree species pine is sensitive to climatic changes, of which appearance is more and more claimed all over the world. One of the most harmful effects of this reality may be represented, as direct consequence, by pine trees drying. Nominating the main causes responsible for degradation of pine forests as direct consequence of drying phenomena, and identification of possible implications of temperature increase in concerned area, as consequence of climatic changes. Two years trial was implemented in Mures County, during 2013, in a pine forest. The raw data were processed with STATISTICA v. 7.0 Office. The importance of identification of complex factors affecting the drying in pine forests is reflected by the extension of this phenomenon. Further research is needed in order to identify the best practices for diminishes the harmful consequences of drying rhythm in pine tree forests.
我国松林的历史不仅具有装饰作用，而且对大面积的土壤稳定性和空气质量也有重要影响。与其他森林树种一样，松树对气候变化非常敏感，在世界范围内受到越来越多的关注。这一现实最有害的影响之一，可能是松树干燥的直接后果。指出造成松林退化的主要原因是干燥现象的直接后果，并查明气候变化对有关地区温度升高的可能影响。2013年，在Mures县的一片松林中实施了为期两年的试验。原始数据用STATISTICA v. 7.0 Office处理。这一现象的扩展反映了识别影响松林干燥的复杂因素的重要性。需要进一步研究，以确定减少松树林干燥节奏的有害后果的最佳做法。
{"title":"Study of the Drying Phenomenon in Pine Trees","authors":"P. Burduhos, Ioan Oroain, I. Covrig, C. Șulea","doi":"10.15835/BUASVMCN-AGR:12004","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12004","url":null,"abstract":"The history of the pine forests in our country has not only a decorative action, but also important consequences on soil stability and air quality n large areas. As all other forest tree species pine is sensitive to climatic changes, of which appearance is more and more claimed all over the world. One of the most harmful effects of this reality may be represented, as direct consequence, by pine trees drying. Nominating the main causes responsible for degradation of pine forests as direct consequence of drying phenomena, and identification of possible implications of temperature increase in concerned area, as consequence of climatic changes. Two years trial was implemented in Mures County, during 2013, in a pine forest. The raw data were processed with STATISTICA v. 7.0 Office. The importance of identification of complex factors affecting the drying in pine forests is reflected by the extension of this phenomenon. Further research is needed in order to identify the best practices for diminishes the harmful consequences of drying rhythm in pine tree forests.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"248 1","pages":"22-24"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80657392","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:11819
E. L. Tigka, D. F. Beslemes, D. Vlachostergios, D. Bilalis
The effect of two plant densities and genotype in growth and N -accumulation of common vetch, used as green manure was investigated. The experiment field was settled in central Greece. The study soil was clayey, classified as Vertisol. The results demonstrated a significant effect (P < 0.05) of plant density in all growth indicates. Significant differences (P < 0.05) were detected in growth indices, biomass productivity and N uptake, among different genotypes of common vetch regardless plant density. Contrary, no effect of plant density was observed in N concentration of plant tissue in all varieties and mixtures. In particular, LAI increased with high rates from crop emergence, reaching values above 3.5 m 2 m -2 in all cases, and maintained high values for more than two months. Also biomass production was significant lower in genotypes and mixtures when cultivated with plant density of 100 Kg ha -1 than with plant density of 180 Kg ha -1 .
研究了两种种植密度和基因型对绿肥杨梅生长和氮素积累的影响。试验田设在希腊中部。研究土壤为粘性土，属于Vertisol。结果表明，植株密度对各生长指标均有显著影响(P < 0.05)。不同基因型野豌豆的生长指标、生物量生产力和氮素吸收量在不同密度下差异显著(P < 0.05)。相反，植株密度对各品种和混合植株组织氮浓度均无影响。特别是作物出苗后LAI快速增加，所有情况下均达到3.5 m 2 m -2以上，且持续2个月以上。当种植密度为100 Kg ha -1时，不同基因型和混合品种的生物量产量显著低于种植密度为180 Kg ha -1时的生物量产量。
{"title":"Evaluation of Vicia sativa L. as green manure: Case study of genotype and plant density influence on N availability","authors":"E. L. Tigka, D. F. Beslemes, D. Vlachostergios, D. Bilalis","doi":"10.15835/BUASVMCN-AGR:11819","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:11819","url":null,"abstract":"The effect of two plant densities and genotype in growth and N -accumulation of common vetch, used as green manure was investigated. The experiment field was settled in central Greece. The study soil was clayey, classified as Vertisol. The results demonstrated a significant effect (P < 0.05) of plant density in all growth indicates. Significant differences (P < 0.05) were detected in growth indices, biomass productivity and N uptake, among different genotypes of common vetch regardless plant density. Contrary, no effect of plant density was observed in N concentration of plant tissue in all varieties and mixtures. In particular, LAI increased with high rates from crop emergence, reaching values above 3.5 m 2 m -2 in all cases, and maintained high values for more than two months. Also biomass production was significant lower in genotypes and mixtures when cultivated with plant density of 100 Kg ha -1 than with plant density of 180 Kg ha -1 .","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"120 1","pages":"142-143"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88253448","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:12017
V. Simionescu, Monica Tanc, D. Pleşoianu, M. Rusu
The choice of soil tillage systems adapted to the pedo-climatic conditions and crop requirements so that the yield and economic efficiency should be attractive for farmers, as well as the modernization of agricultural machinery and implements suitable for this system are expected to expand in the future and to contribute thus to the sustainable development of agriculture, to the improvement of soil fertility and environmental protection. The promotion of conservation agriculture system in versions adapted to the soil conditions with mid-heavy texture and to the requirements of the main crops in the south of Romania which should provide competitive productions, both quantitatively and qualitatively, with reduced costs and high profit. Â The research has been carried out at the Valul lui Traian Station for Agricultutral Research and Development. The experiments were placed according to the method of subdivided plots, in three repetitions, with tillage systems, towards water conservation and economical optimization of the agricultural management and consisted of the following versions: the level of water supply (three graduations); deep loosening of the soil (two graduations); basic tillage (three graduations). Soy reacts well to irrigations, the yield being very significant and ensured statistically. By analyzing the production data obtained as an effect of the interaction between the three factors and given the no irrigation/no chisel plow/vibromix version, all the versions cultivated in conditions of water supply/chisel plow and no chisel plow have statistically ensured production growth that is significant, distinctly significant and very significant. Soy uses well the water administered in norms of 50% of the AHI, obtaining higher yields even than those obtained in conditions of irrigation with 100% of the AHI.
{"title":"The Influence of Tillage and Water Suply on the Soy Production","authors":"V. Simionescu, Monica Tanc, D. Pleşoianu, M. Rusu","doi":"10.15835/BUASVMCN-AGR:12017","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12017","url":null,"abstract":"The choice of soil tillage systems adapted to the pedo-climatic conditions and crop requirements so that the yield and economic efficiency should be attractive for farmers, as well as the modernization of agricultural machinery and implements suitable for this system are expected to expand in the future and to contribute thus to the sustainable development of agriculture, to the improvement of soil fertility and environmental protection. The promotion of conservation agriculture system in versions adapted to the soil conditions with mid-heavy texture and to the requirements of the main crops in the south of Romania which should provide competitive productions, both quantitatively and qualitatively, with reduced costs and high profit. Â The research has been carried out at the Valul lui Traian Station for Agricultutral Research and Development. The experiments were placed according to the method of subdivided plots, in three repetitions, with tillage systems, towards water conservation and economical optimization of the agricultural management and consisted of the following versions: the level of water supply (three graduations); deep loosening of the soil (two graduations); basic tillage (three graduations). Soy reacts well to irrigations, the yield being very significant and ensured statistically. By analyzing the production data obtained as an effect of the interaction between the three factors and given the no irrigation/no chisel plow/vibromix version, all the versions cultivated in conditions of water supply/chisel plow and no chisel plow have statistically ensured production growth that is significant, distinctly significant and very significant. Soy uses well the water administered in norms of 50% of the AHI, obtaining higher yields even than those obtained in conditions of irrigation with 100% of the AHI.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"54 1","pages":"106-110"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73819369","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:12010
A. Marin, B. Lixandru, M. Petrovici, A. Sinitean, F. Morariu, D. Popescu
The benthic macro invertebrates are good indicators of localized conditions, as many of the benthic macro invertebrates have limited migration patterns or a sessile mode of life. Most species have a complex life cycle of one year or more. Sensitive life stages will respond quickly to stress; the overall community will respond more slowly. The structure and distribution of the different benthonic macro-invertebrates communities is considered to be one of the important indicators of the surface waters’ quality . In November 2014, were collected 20 quantitative samples of benthic zones, in the Bega River in order to highlight the links between pollution degree and the saprobionte organisms community. The aim of this paper is to show the effects of human impact (Ghiroda village, potable water treatment station, sewage water treatment station of Timisoara, SA¢nmihaiu Roman village) on benthic community structure and dynamics of different ecosystems from Bega River water. After the laboratory work was carried out, it was identified ten groups of benthic macro invertebrates: Oligochaeta subclass Hirudin class, Lamelibranchiata class, Gastropoda class, Nematoda phylum, Diptera order (larvae of the families Chironomidae, Ceratopogonidae and Tipulidae ), Isopoda order, Trichoptera order, Odonata order, Coleoptera order).
{"title":"The structure and dynamics of macrozoobenthic communities of the Bega River water.","authors":"A. Marin, B. Lixandru, M. Petrovici, A. Sinitean, F. Morariu, D. Popescu","doi":"10.15835/BUASVMCN-AGR:12010","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12010","url":null,"abstract":"The benthic macro invertebrates are good indicators of localized conditions, as many of the benthic macro invertebrates have limited migration patterns or a sessile mode of life. Most species have a complex life cycle of one year or more. Sensitive life stages will respond quickly to stress; the overall community will respond more slowly. The structure and distribution of the different benthonic macro-invertebrates communities is considered to be one of the important indicators of the surface waters’ quality . In November 2014, were collected 20 quantitative samples of benthic zones, in the Bega River in order to highlight the links between pollution degree and the saprobionte organisms community. The aim of this paper is to show the effects of human impact (Ghiroda village, potable water treatment station, sewage water treatment station of Timisoara, SA¢nmihaiu Roman village) on benthic community structure and dynamics of different ecosystems from Bega River water. After the laboratory work was carried out, it was identified ten groups of benthic macro invertebrates: Oligochaeta subclass Hirudin class, Lamelibranchiata class, Gastropoda class, Nematoda phylum, Diptera order (larvae of the families Chironomidae, Ceratopogonidae and Tipulidae ), Isopoda order, Trichoptera order, Odonata order, Coleoptera order).","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"76 1","pages":"53-58"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90680810","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:11511
C. Tanase, V. Popa
It is known that polyphenols are a single group of phytochemicals which present in all plants. Their biological activity is based upon functional groups capable to participate in the plant metabolism influencing cell division and biosynthesis processes. In our experiments we have evaluated the effect of spruce bark polyphenolic extract and deuterium depleted water (DDW) as rapeseed plant bioregulators. After aqueous extraction of bark and quantification and identification of polyphenolic compounds by HPLC methods, we applied the extracts in the growth medium of rapeseed plants. Assessment the influence of extracts on rapeseed plants was achieved through determination of germination energy and capacity, biomass accumulation, assimilatory pigments accumulation and photosynthesis activity. The results has shown that it possible to establish the highest stimulating effect of polyphenols on germination energy and capacity. These, were registered in the presence of spruce bark polyphenolic extract (SBPE) with an equivalent content of 130 mg GAE/L. Rape plants treated with DDW+SBPE have accumulated the highest amount of biomass compared with other experimental variants. The photosynthesis activity was considerably intensified especially in the presence of SBPE.
{"title":"Potential Bioregulators for Rape (Brassica napus L.) Plants","authors":"C. Tanase, V. Popa","doi":"10.15835/BUASVMCN-AGR:11511","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:11511","url":null,"abstract":"It is known that polyphenols are a single group of phytochemicals which present in all plants. Their biological activity is based upon functional groups capable to participate in the plant metabolism influencing cell division and biosynthesis processes. In our experiments we have evaluated the effect of spruce bark polyphenolic extract and deuterium depleted water (DDW) as rapeseed plant bioregulators. After aqueous extraction of bark and quantification and identification of polyphenolic compounds by HPLC methods, we applied the extracts in the growth medium of rapeseed plants. Assessment the influence of extracts on rapeseed plants was achieved through determination of germination energy and capacity, biomass accumulation, assimilatory pigments accumulation and photosynthesis activity. The results has shown that it possible to establish the highest stimulating effect of polyphenols on germination energy and capacity. These, were registered in the presence of spruce bark polyphenolic extract (SBPE) with an equivalent content of 130 mg GAE/L. Rape plants treated with DDW+SBPE have accumulated the highest amount of biomass compared with other experimental variants. The photosynthesis activity was considerably intensified especially in the presence of SBPE.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"8 1","pages":"140-141"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75235933","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-FST:11904
M. Trif, Berta Alvarez Penedo, A. Rusu
The main purpose of the GRAIL EU Project is to find out a viable process, and related technology, aimed at exploiting the “crude glycerol†(at the present by-product from biodiesel production, having no more economic interest ), as a novel valuable feedstock for bio-fuels / bio-chemicals, such as 1,3 propanediol, Fatty acid glycerol formal esters, PolyHydroxyAlkanoates (PHA), Hydrogen and Ethanol, Synthetic coatings, powder coating resins, Secondary Glycerol Amine, Biobutanol, EPA, Cyanocobalamin (Vitamin B12), AŸ-carotene, Docosahexaenoic acid (DHA).
{"title":"GRAIL EU Project: glycerol biorefinery approach for the production of high quality products of industrial value.","authors":"M. Trif, Berta Alvarez Penedo, A. Rusu","doi":"10.15835/BUASVMCN-FST:11904","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:11904","url":null,"abstract":"The main purpose of the GRAIL EU Project is to find out a viable process, and related technology, aimed at exploiting the “crude glycerol†(at the present by-product from biodiesel production, having no more economic interest ), as a novel valuable feedstock for bio-fuels / bio-chemicals, such as 1,3 propanediol, Fatty acid glycerol formal esters, PolyHydroxyAlkanoates (PHA), Hydrogen and Ethanol, Synthetic coatings, powder coating resins, Secondary Glycerol Amine, Biobutanol, EPA, Cyanocobalamin (Vitamin B12), AŸ-carotene, Docosahexaenoic acid (DHA).","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"1 1","pages":"45-46"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83190073","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:12014
Vasile Lucian Naș, Sebastian Călin Vac, Sorina Dîrjan, A. Anastasiu
Taking into account the importance of human capital, and Romanian strategy in this area, in last decade, a Sectoral Operational Programme concerning Human Resources has been implemented. In this study, we emphasize the impact of SOP HRD on doctoral thesis defending rate, and publishing activity of doctoral students from agronomy and veterinary medicine fields. Research was carried out on four state Universities of Agricultural Sciences and Veterinary Medicine from: Bucharest, Cluj-Napoca, Iasi and Timisoara. Data were processed with STATISTICA v. 8.0 for Windows, software. Very strong multiple correlations are emphasized between results indicators with values from R = 0.999 for UASVM Bucharest, to R = 0.961 UASVM Timisoara. Principal Components Analysis, and Cluster Analysis show that published papers have a great importance (99.50%-99.40%) for the number doctoral thesis defended within SOP HRD projects developed by the UASVMs from Bucharest, Cluj-Napoca, and Iasi, while the presentations given at conferences seems to have a minor role. In UASVM Timisoara, both published papers and presentations given at conferences seems to have almost the same importance (51.08%, and 48.92%, respectively) for the number of defended doctoral thesis.
考虑到人力资本的重要性和罗马尼亚在这一领域的战略，在过去十年中执行了一项关于人力资源的部门业务方案。在本研究中，我们强调了SOP HRD对农学和兽医学领域博士生博士论文答辩率和发表活动的影响。在布加勒斯特、克卢日-纳波卡、雅西和蒂米什瓦拉的四所国立农业科学和兽医大学进行了研究。数据用STATISTICA v. 8.0 for Windows软件处理。UASVM布加勒斯特的R = 0.999, UASVM蒂米什瓦拉的R = 0.961，结果指标之间强调了很强的多重相关性。主成分分析andÂ聚类分析表明，在布加勒斯特、克卢日-纳波卡和雅西的uasvm开发的SOP HRD项目中，发表的论文对博士论文数量有很大的影响(99.50%-99.40%)，而在会议上发表的演讲似乎起着次要作用。在UASVM蒂米什瓦拉，发表的论文和在会议上的演讲对博士论文答辩数量的重要性几乎相同(分别为51.08%和48.92%)。
{"title":"Impact of Sectoral Operational Programme Human Resources Development (SOP HRD) on doctoral thesis rate of defending and publishing activity of doctoral students enrolled in the Universities of Agricultural Sciences and Veterinary Medicine from Romania.","authors":"Vasile Lucian Naș, Sebastian Călin Vac, Sorina Dîrjan, A. Anastasiu","doi":"10.15835/BUASVMCN-AGR:12014","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12014","url":null,"abstract":"Taking into account the importance of human capital, and Romanian strategy in this area, in last decade, a Sectoral Operational Programme concerning Human Resources has been implemented. In this study, we emphasize the impact of SOP HRD on doctoral thesis defending rate, and publishing activity of doctoral students from agronomy and veterinary medicine fields. Research was carried out on four state Universities of Agricultural Sciences and Veterinary Medicine from: Bucharest, Cluj-Napoca, Iasi and Timisoara. Data were processed with STATISTICA v. 8.0 for Windows, software. Very strong multiple correlations are emphasized between results indicators with values from R = 0.999 for UASVM Bucharest, to R = 0.961 UASVM Timisoara. Principal Components Analysis, and Cluster Analysis show that published papers have a great importance (99.50%-99.40%) for the number doctoral thesis defended within SOP HRD projects developed by the UASVMs from Bucharest, Cluj-Napoca, and Iasi, while the presentations given at conferences seems to have a minor role. In UASVM Timisoara, both published papers and presentations given at conferences seems to have almost the same importance (51.08%, and 48.92%, respectively) for the number of defended doctoral thesis.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"37 1","pages":"72-76"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75697397","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:11817
M. Corneanu, S. Popescu, C. Hernea
Salix is an important energetic genus, but  most of the genotypes are closely related genetically, due to frequent natural hybridisation in nature. Therefore it is of great interest to study its genetic background. In this work a collection of progenitors (Romanian accessions) collected from different locations were investigated to determine their genetic fingerprint in order to be used in future breeding programs. To evaluate the genetic diversity two types of molecular markers were used, namely ISSR (Inter Simple Sequence Repeats) and  DAMD (Direct amplification of minisatellite-region). In the first step 15 ISSR and 5 DAMD markers were analysed to choose those markers that give the best amplification. It was pointed out that all of the primers had complex fingerprints, but those  which generated the most definite patterns were A13 and UBC 818 (ISSR) and 1-URP6R and 4- 14C2 (DAMD).These primers were used to analyze seven different Salix L. samples collected from different locations. It was revealed that a high polymorphism was identified both between different accesions of a species and between species. The high degree of polymorphism for both  minisatellite and microsatellite sequences, emphasized the necessity of increasing markers number to be possible to perform a statistical analysis and to determine the genetic similarities.
{"title":"The molecular polymorphism evaluation in Salix sp. Romanian accessions - preliminary results","authors":"M. Corneanu, S. Popescu, C. Hernea","doi":"10.15835/BUASVMCN-AGR:11817","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:11817","url":null,"abstract":"Salix is an important energetic genus, but  most of the genotypes are closely related genetically, due to frequent natural hybridisation in nature. Therefore it is of great interest to study its genetic background. In this work a collection of progenitors (Romanian accessions) collected from different locations were investigated to determine their genetic fingerprint in order to be used in future breeding programs. To evaluate the genetic diversity two types of molecular markers were used, namely ISSR (Inter Simple Sequence Repeats) and  DAMD (Direct amplification of minisatellite-region). In the first step 15 ISSR and 5 DAMD markers were analysed to choose those markers that give the best amplification. It was pointed out that all of the primers had complex fingerprints, but those  which generated the most definite patterns were A13 and UBC 818 (ISSR) and 1-URP6R and 4- 14C2 (DAMD).These primers were used to analyze seven different Salix L. samples collected from different locations. It was revealed that a high polymorphism was identified both between different accesions of a species and between species. The high degree of polymorphism for both  minisatellite and microsatellite sequences, emphasized the necessity of increasing markers number to be possible to perform a statistical analysis and to determine the genetic similarities.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"34 1","pages":"138-139"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73923832","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:12011
E. Nagy, M. Todică, R. Ștefan, C. Coța, Nicolae Cioca, V. Pop, L. Olar, I. Papuc
The recent interest in the field of bioplastics is to obtain packaging material from pure starch without synthetic polymers. The rheological behaviour represents one of the most important feature of such materials. Samples with different ratio of starch, glycerol and water were prepared and investigate regarding their rheological behaviour. After the samples reaches their limit of swelling and were completely decomposed viscosity was measured with a Brookfield DV-III Ultra rheometer at different temperatures and share rates. The data were analyzed with Kaleidagraph software. For a given sample our measurements show that the viscosity is dependent on share rate and switches from a non-Newtonian to a Newtonian behaviour in function of temperature and sample composition. We used the power law model to describe this dependence and for a given set of data there is only one output for the fit parameters. We consider the best fit of the experimental data when the curve traced by the computer passes almost through all experimental points. In the present research work we establish a particular algorithm of mathematical analysis of experimental data which allows a separation of the contribution of each variable to the viscosity.
{"title":"Rheological Behavior of Some Starch - Based Bioplastics","authors":"E. Nagy, M. Todică, R. Ștefan, C. Coța, Nicolae Cioca, V. Pop, L. Olar, I. Papuc","doi":"10.15835/BUASVMCN-AGR:12011","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12011","url":null,"abstract":"The recent interest in the field of bioplastics is to obtain packaging material from pure starch without synthetic polymers. The rheological behaviour represents one of the most important feature of such materials. Samples with different ratio of starch, glycerol and water were prepared and investigate regarding their rheological behaviour. After the samples reaches their limit of swelling and were completely decomposed viscosity was measured with a Brookfield DV-III Ultra rheometer at different temperatures and share rates. The data were analyzed with Kaleidagraph software. For a given sample our measurements show that the viscosity is dependent on share rate and switches from a non-Newtonian to a Newtonian behaviour in function of temperature and sample composition. We used the power law model to describe this dependence and for a given set of data there is only one output for the fit parameters. We consider the best fit of the experimental data when the curve traced by the computer passes almost through all experimental points. In the present research work we establish a particular algorithm of mathematical analysis of experimental data which allows a separation of the contribution of each variable to the viscosity.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"47 1","pages":"59-63"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76835030","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}
Pub Date : 2016-05-18DOI: 10.15835/BUASVMCN-AGR:12002
M. Adi, I. Păcurar
In each agricultural exploitation or agribusiness, it is imposed a correct use of fertilizers not just from economical reasons but also in order to protect the environment. Nitrates Directive (1991) encourages farmers to become more careful with the environment and to try new techniques. By mimimazing the use of fertilizers biodiversity is insured. In many European countries, sheep wool is considered waste. Despite its great features (physical and bio-chemical) sheep wool remains unused, although we can find it in very large quantities. Sheep wool is a 100% ntural fabric, durable, recyclable and biodegradable and it does not contain any chemical substances or other pollutants. Therefore no toxic substance could infiltrate in surface waters or groundwaters, minimazig water contamination with heavy metals or eutrophication. The main idea of this study is to develop an innovative strategy by using raw sheep wool as fertilizer. The development of a logistic concept: sheep wool from the farm used on fields. The use of sheep wool is equal with no impacts on the environment, no soil pollution, no water pollution, no soil degradation, which leads to biodiversity preservation.
{"title":"Study regarding the use of sheep wool in dendro-horticultural.","authors":"M. Adi, I. Păcurar","doi":"10.15835/BUASVMCN-AGR:12002","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:12002","url":null,"abstract":"In each agricultural exploitation or agribusiness, it is imposed a correct use of fertilizers not just from economical reasons but also in order to protect the environment. Nitrates Directive (1991) encourages farmers to become more careful with the environment and to try new techniques. By mimimazing the use of fertilizers biodiversity is insured. In many European countries, sheep wool is considered waste. Despite its great features (physical and bio-chemical) sheep wool remains unused, although we can find it in very large quantities. Sheep wool is a 100% ntural fabric, durable, recyclable and biodegradable and it does not contain any chemical substances or other pollutants. Therefore no toxic substance could infiltrate in surface waters or groundwaters, minimazig water contamination with heavy metals or eutrophication. The main idea of this study is to develop an innovative strategy by using raw sheep wool as fertilizer. The development of a logistic concept: sheep wool from the farm used on fields. The use of sheep wool is equal with no impacts on the environment, no soil pollution, no water pollution, no soil degradation, which leads to biodiversity preservation.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"8 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87226261","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}
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