: The value chain represents a detailed outline of the process that a product or service passes from raw materials, production and distribution to the consumer. The aim of this article is that within the analyzed companies in the area of the statistical region of South Serbia determined the dynamics of purchasing and marketing of non-wood forest products (NWFPs), and their value. The purpose of this research is to examine the possibili ties for the development of small and medium-sized enterprises (SMEs) towards sustainable use of NWFPs in a part of the territory of South Serbia. The subjects of the research are: purchased and sold quantities in analyzed companies, as well as the prices of these prod ucts in the market. The research was conducted in the territory of the dominant Pcinja, and they included 19 companies engaged in purchasing, processing and sale of NTFPs. The purchase of forest raspberries, wild strawberries and blackberries and herbs is represent ed within the Pcinja District. The highest average annual growth rates were recorded in the sales of products with added value of dog rose ( Rosa canina ) and cornelian ( Cornus mas ). Export oriented enterprises in this area are at a low level. The total gross revenue earned by the placement of the selected final NWFPs in the domestic market was about 6,315,710 €.
{"title":"The value chain of non-wood forest products as a component of development of the forestry sector in a part of South Serbia.","authors":"L. Keča, M. Marčeta, D. Mladenović, S. Jelić","doi":"10.2298/gsf1512043k","DOIUrl":"https://doi.org/10.2298/gsf1512043k","url":null,"abstract":": The value chain represents a detailed outline of the process that a product or service passes from raw materials, production and distribution to the consumer. The aim of this article is that within the analyzed companies in the area of the statistical region of South Serbia determined the dynamics of purchasing and marketing of non-wood forest products (NWFPs), and their value. The purpose of this research is to examine the possibili ties for the development of small and medium-sized enterprises (SMEs) towards sustainable use of NWFPs in a part of the territory of South Serbia. The subjects of the research are: purchased and sold quantities in analyzed companies, as well as the prices of these prod ucts in the market. The research was conducted in the territory of the dominant Pcinja, and they included 19 companies engaged in purchasing, processing and sale of NTFPs. The purchase of forest raspberries, wild strawberries and blackberries and herbs is represent ed within the Pcinja District. The highest average annual growth rates were recorded in the sales of products with added value of dog rose ( Rosa canina ) and cornelian ( Cornus mas ). Export oriented enterprises in this area are at a low level. The total gross revenue earned by the placement of the selected final NWFPs in the domestic market was about 6,315,710 €.","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"1 1","pages":"43-58"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68306718","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}
L. Nestorovski, M. Nacevski, Zdravko Trajanov, Pande Trajkov
The subject of investigation in this paper is the amount of ash residue during combustion of Sessile oak (Quercus petraea, Mattuschka) wood that is one of the most usable ones as fire wood in households in the Republic of Macedonia. The purpose of this investigation was to establish the amount of ash, as one of the biggest problems during energy production with forest biomass. The material for this investigation is collected from two different regions of the State, in order to eliminate or to emphasise the influence of different stand conditions. The results from the investigation show that during the sessile oak wood combustion the wood produces less ash than wood with bark, and bark produces the highest amounts of ash.
{"title":"Analysis of the amount of ash during sessile oak (Quercus petraea, Mattuschka) wood combustion","authors":"L. Nestorovski, M. Nacevski, Zdravko Trajanov, Pande Trajkov","doi":"10.2298/GSF15S1097N","DOIUrl":"https://doi.org/10.2298/GSF15S1097N","url":null,"abstract":"The subject of investigation in this paper is the amount of ash residue during combustion of Sessile oak (Quercus petraea, Mattuschka) wood that is one of the most usable ones as fire wood in households in the Republic of Macedonia. The purpose of this investigation was to establish the amount of ash, as one of the biggest problems during energy production with forest biomass. The material for this investigation is collected from two different regions of the State, in order to eliminate or to emphasise the influence of different stand conditions. The results from the investigation show that during the sessile oak wood combustion the wood produces less ash than wood with bark, and bark produces the highest amounts of ash.","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"1 1","pages":"97-100"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68307348","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}
This paper presents the results of research of efficacy of the lightweight low power chainsaw Stihl MS 260 in the operations of juvenile thinning in preserved even-aged mixed stands of pedunculate oak with hornbeam, ash and other hard hardwoods. The investigations were carried out in the territory of FE “Sremska Mitrovica” in three sample plots of different ages. It is the first research of this kind based on the choice of optimal technological solution for the cleaning cuts of oak stands. Technology of work is based on cutting unwanted species at a certain height in order to favor pedunculate oak as the main species. In sample plot 1 the cutting through of undesirable species was carried out in one place and then third parties carried out their processing and transportation. In sample plots 2 and 3 workers cut the unwanted species in several places and stacked the timber on the ground so as not to interfere with the growth of pedunculate oak which does not tolerate shading. In this study, we applied time and work study. Group system of work was recorded. The group typically consisted of 4 workers and a foreman. Fuel consumption was recorded by the method of tank refuelling. The research results show that operating conditions have a significant impact on the effects of work with a chainsaw, as well as on the consumption of fuel and lubricants. The differences are mainly caused by different structures of cut timber.
本文介绍了轻型低功率链锯Stihl MS 260在保存的有柄栎、角梁、白蜡等硬木的均匀龄混合林幼树疏林作业中的效果研究结果。调查是在“斯雷姆斯卡米特罗维察”地区的三个不同年龄的样地进行的。这是第一次针对橡树林清洗切口的最佳工艺方案的选择进行此类研究。工作技术是基于在一定高度切割不需要的树种，以有利于有花序的橡树作为主要树种。在样地1中，不需要的树种在一个地方进行切割，然后由第三方进行加工和运输。在样地2和3中，工人在几个地方砍掉不需要的树种，并将木材堆放在地面上，以免干扰不耐受遮阳的有梗橡树的生长。在这项研究中，我们采用了时间和工作学习。组制工作记录。这个小组通常由4名工人和一名工头组成。用油箱加油法记录燃料消耗。研究结果表明，操作条件对链锯的工作效果以及燃料和润滑油的消耗有显著影响。这种差异主要是由于采伐木材的结构不同造成的。
{"title":"Work efficiency in the operations of juvenile thinning of mixed stands of pedunculate oak with hornbeam, ash and other hard broadleaves with the Stihl MS 260 chainsaw","authors":"M. Danilović, Z. Đorđević, Slavica Antonić","doi":"10.2298/GSF15S1015D","DOIUrl":"https://doi.org/10.2298/GSF15S1015D","url":null,"abstract":"This paper presents the results of research of efficacy of the lightweight low power chainsaw Stihl MS 260 in the operations of juvenile thinning in preserved even-aged mixed stands of pedunculate oak with hornbeam, ash and other hard hardwoods. The investigations were carried out in the territory of FE “Sremska Mitrovica” in three sample plots of different ages. It is the first research of this kind based on the choice of optimal technological solution for the cleaning cuts of oak stands. Technology of work is based on cutting unwanted species at a certain height in order to favor pedunculate oak as the main species. In sample plot 1 the cutting through of undesirable species was carried out in one place and then third parties carried out their processing and transportation. In sample plots 2 and 3 workers cut the unwanted species in several places and stacked the timber on the ground so as not to interfere with the growth of pedunculate oak which does not tolerate shading. In this study, we applied time and work study. Group system of work was recorded. The group typically consisted of 4 workers and a foreman. Fuel consumption was recorded by the method of tank refuelling. The research results show that operating conditions have a significant impact on the effects of work with a chainsaw, as well as on the consumption of fuel and lubricants. The differences are mainly caused by different structures of cut timber.","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"2015 1","pages":"15-24"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68307420","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}
Forest genetic resources, which represent genetic diversity contained in the thousands of forest tree species, take a significant place in total biodiversity of Serbia. The forest ecosystems of Serbia include about 250 indigenous tree species which, according to geographical-floral elements, belong to the Middle-European, Pontic and Mediterranean element. Within the available gene pool, special attention should be addressed to wild fruit tree species and those species which are relict, endemic, rare and endangered according to the IUCN categorization. The regulatory basis for conservation and directed utilization of forest genetic resources in Serbia can be found in the strategic and legal acts in the field of environmental protection, nature conservation and forestry. Previous activities in the conservation of forest genetic resources are insufficient, whereby the level of their endangerment is continuously increasing as a result of deforestation and climate change. This situation requires a clear definition of a national strategy of conservation and directed utilization of forest genetic resources in Serbia, as a basis for planning activities in this area based on best practices.
{"title":"Forest genetic resources in Serbia-state and recommendations for improvement in this area.","authors":"M. Šijačić‐Nikolić, J. Milovanović, M. Nonić","doi":"10.2298/GSF14S1051S","DOIUrl":"https://doi.org/10.2298/GSF14S1051S","url":null,"abstract":"Forest genetic resources, which represent genetic diversity contained in the thousands of forest tree species, take a significant place in total biodiversity of Serbia. The forest ecosystems of Serbia include about 250 indigenous tree species which, according to geographical-floral elements, belong to the Middle-European, Pontic and Mediterranean element. Within the available gene pool, special attention should be addressed to wild fruit tree species and those species which are relict, endemic, rare and endangered according to the IUCN categorization. The regulatory basis for conservation and directed utilization of forest genetic resources in Serbia can be found in the strategic and legal acts in the field of environmental protection, nature conservation and forestry. Previous activities in the conservation of forest genetic resources are insufficient, whereby the level of their endangerment is continuously increasing as a result of deforestation and climate change. This situation requires a clear definition of a national strategy of conservation and directed utilization of forest genetic resources in Serbia, as a basis for planning activities in this area based on best practices.","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"137 1","pages":"51-70"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68306187","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}
J. Nedeljković, Dragan Nonic, N. Ranković, Nada Dragović
Collaboration between enterprises includes all activities, which are undertaken in order to achieve common goals and interests. Business networking involves the establishment of various forms of associations and business communities, with or without the creation of new economic entities. The aim of the paper was to study the forms of cooperation between non-wood forest products based small and medium enterprises, as well as to determine the attitudes of their representatives towards cooperation and business networking with other enterprises in Central Serbia. Research included 91 non-wood forest product based small and medium enterprises and 19 representatives of leading enterprises, which were selected based on specifically defined criteria. Both the methods of analysis and synthesis and comparative and statistical methods were applied in the paper. The results indicate that almost all analyzed enterprises cooperate with other enterprises. The most common form of cooperation is present “during selling” and “during purchase”. The majority of leading enterprises’ representatives are members of some of the existing associations of entrepreneurs. Based on the analysis, it was found that there is a need for development of cooperation between the analyzed enterprises. In accordance with that, proposals for the improvement of business networking were given. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istraživanja klimatskih promena i njihovog uticaja na životnu sredinu - pracenje uticaja, adaptacija i ublažavanje”, podprojekat 43007/16-III: Socio-ekonomski razvoj, ublažavanje i adaptacija na klimatske promene i br. 37008-TR: Održivo gazdovanje ukupnim potencijalima suma u Republici Srbiji
企业之间的协作包括为了实现共同的目标和利益而进行的所有活动。商业网络包括建立各种形式的协会和商业社区，无论是否建立新的经济实体。该文件的目的是研究以非木材林产品为基础的中小型企业之间的合作形式，并确定它们的代表对与塞尔维亚中部其他企业的合作和业务联网的态度。研究对象包括91家以非木材林产品为基础的中小企业和19家龙头企业的代表，这些企业是根据具体确定的标准选出的。本文采用了分析综合方法和比较统计方法。结果表明，几乎所有被分析的企业都与其他企业合作。最常见的合作形式是“在销售期间”和“在购买期间”。大多数龙头企业的代表都是一些现有企业家协会的成员。在分析的基础上，发现被分析企业之间存在着发展合作的需求。在此基础上，提出了完善业务网络的建议。[南斯拉夫]塞族共和国部长项目;4700: Istraživanja klimatskih promena i njihovog uticaja životnu sresdinu - pracenje uticaja, adaptacija i ublažavanje”，podprojekat 4700 /16- iii:社会经济研究，ublažavanje i adaptacija na klimatske promenei。37008-TR: Održivo gazdovanje ukupnim potenticijalima suma u Republici Srbiji
{"title":"Non-wood forest products based enterprises' cooperation and business networking forms in central Serbia.","authors":"J. Nedeljković, Dragan Nonic, N. Ranković, Nada Dragović","doi":"10.2298/GSF1410121N","DOIUrl":"https://doi.org/10.2298/GSF1410121N","url":null,"abstract":"Collaboration between enterprises includes all activities, which are undertaken in order to achieve common goals and interests. Business networking involves the establishment of various forms of associations and business communities, with or without the creation of new economic entities. The aim of the paper was to study the forms of cooperation between non-wood forest products based small and medium enterprises, as well as to determine the attitudes of their representatives towards cooperation and business networking with other enterprises in Central Serbia. Research included 91 non-wood forest product based small and medium enterprises and 19 representatives of leading enterprises, which were selected based on specifically defined criteria. Both the methods of analysis and synthesis and comparative and statistical methods were applied in the paper. The results indicate that almost all analyzed enterprises cooperate with other enterprises. The most common form of cooperation is present “during selling” and “during purchase”. The majority of leading enterprises’ representatives are members of some of the existing associations of entrepreneurs. Based on the analysis, it was found that there is a need for development of cooperation between the analyzed enterprises. In accordance with that, proposals for the improvement of business networking were given. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istraživanja klimatskih promena i njihovog uticaja na životnu sredinu - pracenje uticaja, adaptacija i ublažavanje”, podprojekat 43007/16-III: Socio-ekonomski razvoj, ublažavanje i adaptacija na klimatske promene i br. 37008-TR: Održivo gazdovanje ukupnim potencijalima suma u Republici Srbiji","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"17 1","pages":"121-143"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68306050","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}
The aim of this study was to investigate the effect of different concentrations of sorbitol on the development of the in vitro culture of D. serotinus in the multiplication phase. The obtained results showed that sorbitol generally had a positive effect, depending on its concentration and explant type. In addition, the presence of sorbitol affected the change of pH value of the media after autoclaving and after 25 days of in vitro culture, which could affect the availability of certain ions to plants. Therefore, the obtained results indicate that sorbitol can be used as an energy source for the in vitro culture of D. serotinus, but this should be further investigated. [Projekat Ministarstva nauke Republike Srbije, br. 43007]
{"title":"Effect of sugar alcohol sorbitol on in vitro shoot development of Dianthus serotinus Waldst. et Kit.","authors":"M. Marković, M. Grbic, M. Djukic","doi":"10.2298/GSF1409113M","DOIUrl":"https://doi.org/10.2298/GSF1409113M","url":null,"abstract":"The aim of this study was to investigate the effect of different concentrations of sorbitol on the development of the in vitro culture of D. serotinus in the multiplication phase. The obtained results showed that sorbitol generally had a positive effect, depending on its concentration and explant type. In addition, the presence of sorbitol affected the change of pH value of the media after autoclaving and after 25 days of in vitro culture, which could affect the availability of certain ions to plants. Therefore, the obtained results indicate that sorbitol can be used as an energy source for the in vitro culture of D. serotinus, but this should be further investigated. [Projekat Ministarstva nauke Republike Srbije, br. 43007]","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"1 1","pages":"113-124"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68305539","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}
M. Djukic, Danijela Djunisijevic-Bojovic, M. Grbic, D. Skočajić, M. Marković, S. Samuilov
In this paper are presented the analyzes of some morphometric properties, leaves area stomata density and the intensity of leaves transpiration of white poplar, Populus alba L. and canadian poplar, Populus x canadensis Moench ‘I 214’ in populations at (1) flooded (wet) and (2) unflooded (dry) habitats on the Ada Ciganlija river island during the growing season. Six trees of each species from both habitats were selected, with similar height, age and physiological condition. The morphometric analysis of the analysed poplar species show that the type of habitat did not influence tree height and trunk as well as the leaves area. However, crown width and trunk diameter were greater in the wetter habitat. It was found that the intensity of transpiration of Populus x canadensis ‘I 214’ trees had higher average values (0,73 gH2Odmˉ²hˉ¹) than white poplar (0,68 gH2Odm ˉ²hˉ¹). Transpiration of both taxa was more intensive on the drier than on the flooded habitats. By analyzing the number and size of stomata on leaves of the investigated Populus x canadensis ‘I 214’ trees, it was found that stomata are more numerous but of smaller size on the leaves from drier habitats. It could be concluded that both species could have impact on microclimate conditions by increasing air moisture content and decreasing air temperature but Canadian comparing to white poplar, slightly greater. Increasing air temperature is a consequence of evident global climate change. Through transpiration plants reduce summer air temperature indirectly, by increasing its relative humidity. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Studying climate change and its influence on the environment: impacts, adaptation and mitigation]
本文分析了Ada Ciganlija河岛上白杨、白杨(Populus alba L.)和加拿大杨杨(Populus x canadensis Moench ' i214)在生长季节(1)水淹(湿)和(2)无水淹(干)生境种群的形态特征、叶片面积、气孔密度和叶片蒸腾强度。在两个生境中，每个树种各选6棵树，树高、树龄和生理条件相近。对所分析杨树种的形态计量学分析表明，生境类型对树高、树干和叶面积没有影响。而在湿润生境，冠宽和干径较大。结果表明，白杨的蒸腾强度平均值(0.73 gH2Odm - h²h - 1¹)高于白杨(0.68 gH2Odm - h²h - 1¹)。两个类群的蒸腾作用在干旱生境上比在淹水生境上更为强烈。通过对调查的加拿大胡杨(Populus x canada ' i214)叶片气孔数量和大小的分析，发现干燥生境的叶片气孔数量较多，但气孔尺寸较小。结果表明，两种树种均可通过增加空气含水量和降低气温对小气候条件产生影响，但与白杨相比，加拿大的影响略大。气温上升是明显的全球气候变化的结果。通过蒸腾作用，植物通过增加相对湿度间接降低夏季气温。[南斯拉夫]塞族共和国部长项目;[437 .研究气候变化及其对环境的影响:影响、适应和减缓]
{"title":"Ecophysiological properties of white and Canadian poplar in habitats with various water regimes","authors":"M. Djukic, Danijela Djunisijevic-Bojovic, M. Grbic, D. Skočajić, M. Marković, S. Samuilov","doi":"10.2298/GSF1410073D","DOIUrl":"https://doi.org/10.2298/GSF1410073D","url":null,"abstract":"In this paper are presented the analyzes of some morphometric properties, leaves area stomata density and the intensity of leaves transpiration of white poplar, Populus alba L. and canadian poplar, Populus x canadensis Moench ‘I 214’ in populations at (1) flooded (wet) and (2) unflooded (dry) habitats on the Ada Ciganlija river island during the growing season. Six trees of each species from both habitats were selected, with similar height, age and physiological condition. The morphometric analysis of the analysed poplar species show that the type of habitat did not influence tree height and trunk as well as the leaves area. However, crown width and trunk diameter were greater in the wetter habitat. It was found that the intensity of transpiration of Populus x canadensis ‘I 214’ trees had higher average values (0,73 gH2Odmˉ²hˉ¹) than white poplar (0,68 gH2Odm ˉ²hˉ¹). Transpiration of both taxa was more intensive on the drier than on the flooded habitats. By analyzing the number and size of stomata on leaves of the investigated Populus x canadensis ‘I 214’ trees, it was found that stomata are more numerous but of smaller size on the leaves from drier habitats. It could be concluded that both species could have impact on microclimate conditions by increasing air moisture content and decreasing air temperature but Canadian comparing to white poplar, slightly greater. Increasing air temperature is a consequence of evident global climate change. Through transpiration plants reduce summer air temperature indirectly, by increasing its relative humidity. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Studying climate change and its influence on the environment: impacts, adaptation and mitigation]","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"2014 1","pages":"73-85"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68305792","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}
M. Grbic, D. Skočajić, M. Djukic, Danijela Djunisijevic-Bojovic, M. Marković
Seeds of sweet acacia (Vachellia farnesiana (L.) Wight & Arn.) were mechanically scarified and treated with concentrated sulfuric acid in order to determine the permeability degree of the seed coat. The obtained results suggest a stronger form of seed coat dormancy that prevents potential invasiveness after introduction. The species is recommended for limited cultivation in outdoor conditions and unlimited use in interior spaces as full size or bonsai trees. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istraživanje klimatskih promena i njihovog uticaja na životnu sredinu: pracenje uticaja, adaptacija i ublažavanje]
甜金合欢(Vachellia farnesiana (L.))种子(Wight & Arn.)对种皮进行机械刻蚀和浓硫酸处理，以测定种皮的透气性。所获得的结果表明，种皮休眠的形式更强，可以防止引入后潜在的入侵。该树种建议在室外条件下有限栽培，在室内空间作为全尺寸或盆景树无限使用。[南斯拉夫]塞族共和国部长项目;[437: Istraživanje klimatskih promena i njihovog uticaja životnu sresdinu: pracenje uticaja, adaptacija i ublažavanje]
{"title":"Examination of seed characters of Vachellia farnesiana (L.) Wight & Arn. as potentially applicable species in Serbia under climate change conditions","authors":"M. Grbic, D. Skočajić, M. Djukic, Danijela Djunisijevic-Bojovic, M. Marković","doi":"10.2298/GSF1410033G","DOIUrl":"https://doi.org/10.2298/GSF1410033G","url":null,"abstract":"Seeds of sweet acacia (Vachellia farnesiana (L.) Wight & Arn.) were mechanically scarified and treated with concentrated sulfuric acid in order to determine the permeability degree of the seed coat. The obtained results suggest a stronger form of seed coat dormancy that prevents potential invasiveness after introduction. The species is recommended for limited cultivation in outdoor conditions and unlimited use in interior spaces as full size or bonsai trees. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Istraživanje klimatskih promena i njihovog uticaja na životnu sredinu: pracenje uticaja, adaptacija i ublažavanje]","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"2014 1","pages":"33-44"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68305229","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}
M. Grbic, D. Skočajić, M. Djukic, Danijela Djunisijevic-Bojovic, D. Obratov-Petković, I. Bjedov
The study deals with the influence of growth regulators on the germination of Judas tree (Cercis siliquastrum L.) seed which is double dormant. We simultaneously tested seeds prepared in the conventional procedure: scarification + stratification and scarified seeds treated with phytohormones from the groups of gibberellins, auxin and cytokinins. The results indicate a positive effect of gibberellic acid (GA), as well as some combinations of this phytohormone with others. Recommendations for practice are to combine the conventional procedure with GA. The procedure may shorten the duration of stratification; the application of GA should follow stratification because the temperature of 4°C does not provide growth regulators activity. The study results can serve as the base for easier generative reproduction of this valuable woody ornamental species which could have a wide use in changed climate conditions. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Studying climate change and its influence on the environment: impacts, adaptation and mitigation]
{"title":"Breaking of Judas tree seed dormancy by plant hormone treatments","authors":"M. Grbic, D. Skočajić, M. Djukic, Danijela Djunisijevic-Bojovic, D. Obratov-Petković, I. Bjedov","doi":"10.2298/GSF1409073G","DOIUrl":"https://doi.org/10.2298/GSF1409073G","url":null,"abstract":"The study deals with the influence of growth regulators on the germination of Judas tree (Cercis siliquastrum L.) seed which is double dormant. We simultaneously tested seeds prepared in the conventional procedure: scarification + stratification and scarified seeds treated with phytohormones from the groups of gibberellins, auxin and cytokinins. The results indicate a positive effect of gibberellic acid (GA), as well as some combinations of this phytohormone with others. Recommendations for practice are to combine the conventional procedure with GA. The procedure may shorten the duration of stratification; the application of GA should follow stratification because the temperature of 4°C does not provide growth regulators activity. The study results can serve as the base for easier generative reproduction of this valuable woody ornamental species which could have a wide use in changed climate conditions. [Projekat Ministarstva nauke Republike Srbije, br. 43007: Studying climate change and its influence on the environment: impacts, adaptation and mitigation]","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"2014 1","pages":"73-84"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68305587","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}
Due to the trends in the consumption of wood and particularly s oft broadleaves, poplar cultivation gained importance in this country and worldwide during the last decade of the twentieth century. Many countries, primarily those with developed forestry (Canada, France, Italy, etc.), have recognized the importance of poplar cultivation in terms of production, economics and environmental protection. The aim of this study is to apply the method of assessment and the method of calculating the optimal production cycle length in order to determine the optimal production cycle length of poplar plantations in the studied localities of Ravni Srem (FE “Sremska Mitrovica”) from an economic standpoint. The purpose of this research is to provide guidelines for forestry practices aimed at the improvement of the situation in the field of assessment of the optimal production cycle length in poplar plantations. The research object a re: the number of trees, volume of trees and other elements that will be quantified and numerically analyzed. The initial hypothesis of the study was that the production cycle length of poplar in the study area ranges from 10-20 years, depending on the soil type. The production cycle length of poplar in the study area ranges from 15-19 years. It was calculated using three methods: Mo, M1 and M2. The assessment based on the NPVs criterion determined a desired optimal production cycle length of about 16 years on meadow semigley. When the optimum production cycle length of Euro-American poplar is concerned, it is appropriate for the analyses to use the maximization of the average net present value. [Projekat Ministarstva nauke Republike Srbije, br. EVBR 37008: Održivo gazdovanje ukupnim potencijalima suma u Republici Srbiji i br. TP 31041: Sumski zasadi u funkciji povecanja posumljenosti Srbije]
由于木材消耗的趋势，特别是软阔叶，在20世纪的最后十年，杨树的种植在这个国家和世界范围内变得重要起来。许多国家，主要是林业发达的国家(加拿大、法国、意大利等)已经认识到杨树栽培在生产、经济和环境保护方面的重要性。本研究的目的是应用评估方法和最佳生产周期长度的计算方法，从经济学的角度确定拉夫尼山脉(FE“斯雷姆斯卡米特罗维察”)研究地区杨树人工林的最佳生产周期长度。本研究旨在为改善杨树人工林最佳生产周期评价领域的现状提供林业实践指南。研究对象是:树木的数量，树木的体积等将被量化和数值分析的元素。本研究初步假设研究区杨树的生产周期长短根据土壤类型的不同，在10 ~ 20年之间。研究区杨树的生产周期为15 ~ 19年。采用Mo、M1和M2三种方法计算。基于npv标准的评价确定了草甸半草地最佳生产周期长度约为16年。在考虑欧美杨树最优生产周期长度时，采用平均净现值最大化进行分析比较合适。[南斯拉夫]塞族共和国部长项目;EVBR 37008: Održivo gazdovanje ukupnim potenticijalima suma u Republici Srbiji i br。[TP 31041: Sumski zasadi u funkciji povecanja posumljenosti Srbije]
{"title":"Determination of the optimal production cycle length from the financial aspect in poplar plantations on meadow semigley.","authors":"L. Keča","doi":"10.2298/GSF1410087K","DOIUrl":"https://doi.org/10.2298/GSF1410087K","url":null,"abstract":"Due to the trends in the consumption of wood and particularly s oft broadleaves, poplar cultivation gained importance in this country and worldwide during the last decade of the twentieth century. Many countries, primarily those with developed forestry (Canada, France, Italy, etc.), have recognized the importance of poplar cultivation in terms of production, economics and environmental protection. The aim of this study is to apply the method of assessment and the method of calculating the optimal production cycle length in order to determine the optimal production cycle length of poplar plantations in the studied localities of Ravni Srem (FE “Sremska Mitrovica”) from an economic standpoint. The purpose of this research is to provide guidelines for forestry practices aimed at the improvement of the situation in the field of assessment of the optimal production cycle length in poplar plantations. The research object a re: the number of trees, volume of trees and other elements that will be quantified and numerically analyzed. The initial hypothesis of the study was that the production cycle length of poplar in the study area ranges from 10-20 years, depending on the soil type. The production cycle length of poplar in the study area ranges from 15-19 years. It was calculated using three methods: Mo, M1 and M2. The assessment based on the NPVs criterion determined a desired optimal production cycle length of about 16 years on meadow semigley. When the optimum production cycle length of Euro-American poplar is concerned, it is appropriate for the analyses to use the maximization of the average net present value. [Projekat Ministarstva nauke Republike Srbije, br. EVBR 37008: Održivo gazdovanje ukupnim potencijalima suma u Republici Srbiji i br. TP 31041: Sumski zasadi u funkciji povecanja posumljenosti Srbije]","PeriodicalId":30149,"journal":{"name":"Glasnik Sumarskog Fakulteta Univerzitet u Beogradu","volume":"1 1","pages":"87-104"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68305898","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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