Vladimir Milicevic, N. Zdravković, Jovana Jovic, Dušan Jagličić
In this paper, we discuss the multi-depot vehicle routing problem with regard to mobile beekeeping. Considering that beekeepers usually do not have their own land plots rarely rely on external transporters and often rely on external land plots, we present a fully functional platform to pair beekeepers, transporters, and land plot owners. Two algorithms for calculating optimal mobile beekeeping routes are developed in order to increase honey yield and minimize transport costs. We show that the first algorithm, based on the mathematical model, creates optimal routes in order to transport and distribute beehives by a distributor, while minimizing transport costs. In addition, we consider an option for the case when beekeepers themselves want to handle the transport and use a single external land plot. We show that, for this case, the application of the second algorithm creates a "good enough" solution. This iterative algorithm routes beekeepers to the closest land plot that can handle their beehives. Furthermore, we present a fully functional Web platform that applies these algorithms, enabling beekeepers, transporters and land owners to register and use the platform in Serbia.
{"title":"Modeling a software platform for beehive placement optimization","authors":"Vladimir Milicevic, N. Zdravković, Jovana Jovic, Dušan Jagličić","doi":"10.5937/aaser2253039m","DOIUrl":"https://doi.org/10.5937/aaser2253039m","url":null,"abstract":"In this paper, we discuss the multi-depot vehicle routing problem with regard to mobile beekeeping. Considering that beekeepers usually do not have their own land plots rarely rely on external transporters and often rely on external land plots, we present a fully functional platform to pair beekeepers, transporters, and land plot owners. Two algorithms for calculating optimal mobile beekeeping routes are developed in order to increase honey yield and minimize transport costs. We show that the first algorithm, based on the mathematical model, creates optimal routes in order to transport and distribute beehives by a distributor, while minimizing transport costs. In addition, we consider an option for the case when beekeepers themselves want to handle the transport and use a single external land plot. We show that, for this case, the application of the second algorithm creates a \"good enough\" solution. This iterative algorithm routes beekeepers to the closest land plot that can handle their beehives. Furthermore, we present a fully functional Web platform that applies these algorithms, enabling beekeepers, transporters and land owners to register and use the platform in Serbia.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194087","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}
Ana A. Anđelković, S. Popović, Milica Živković, Dušanka Cvijanović, Maja Novković, D. Marisavljević, Danijela Pavlović, S. Radulović
Portulaca oleracea L. is one of the most widely distributed plant species, invading a host of worldwide regions. Rivers and canals, as corridors connecting neighboring habitats, are known to exhibit high invasion levels. Consequently, the aim of this paper was to show which catchment areas, environmental factors and habitat types can be seen as predictors of the presence of this invasive species in the riparian areas of Serbia. Field research was carried out at 250 field sites, where the cover and abundance of P. oleracea, relevant environmental variables and habitat type were recorded. Redundancy analysis (RDA) and response curves fitted using a generalized linear model (GLM) were used to show the relation of the cover of P. oleracea and the following variables: catchment area, predominant bank material, elevation, and the total number of invasive species on site. A non-metric multidimensional scaling (NMDS) was used to group sites where P. oleracea was found, based on the values of its cover. In general, primarily the rivers in the northern, low-lying part of Serbia can be seen as important corridors of the spread of P. oleracea. Its dominance is especially associated with areas draining into the Danube and Sava rivers and field sites characterized by a high pressure of invasive plants. Of the total number of records, the highest number of invaded field sites was recorded along the Danube, Tisa and Zapadna Morava rivers. Regarding the environmental and habitat predictors, the results have shown that the abundance of P. oleracea is associated with gravelly and sandy banks and grassland habitat types, primarily anthropogenic herb stands.
{"title":"Catchment area, environmental variables and habitat type as predictors of the distribution and abundance of Portulaca oleracea L. in the riparian areas of Serbia","authors":"Ana A. Anđelković, S. Popović, Milica Živković, Dušanka Cvijanović, Maja Novković, D. Marisavljević, Danijela Pavlović, S. Radulović","doi":"10.5937/aaser2253009a","DOIUrl":"https://doi.org/10.5937/aaser2253009a","url":null,"abstract":"Portulaca oleracea L. is one of the most widely distributed plant species, invading a host of worldwide regions. Rivers and canals, as corridors connecting neighboring habitats, are known to exhibit high invasion levels. Consequently, the aim of this paper was to show which catchment areas, environmental factors and habitat types can be seen as predictors of the presence of this invasive species in the riparian areas of Serbia. Field research was carried out at 250 field sites, where the cover and abundance of P. oleracea, relevant environmental variables and habitat type were recorded. Redundancy analysis (RDA) and response curves fitted using a generalized linear model (GLM) were used to show the relation of the cover of P. oleracea and the following variables: catchment area, predominant bank material, elevation, and the total number of invasive species on site. A non-metric multidimensional scaling (NMDS) was used to group sites where P. oleracea was found, based on the values of its cover. In general, primarily the rivers in the northern, low-lying part of Serbia can be seen as important corridors of the spread of P. oleracea. Its dominance is especially associated with areas draining into the Danube and Sava rivers and field sites characterized by a high pressure of invasive plants. Of the total number of records, the highest number of invaded field sites was recorded along the Danube, Tisa and Zapadna Morava rivers. Regarding the environmental and habitat predictors, the results have shown that the abundance of P. oleracea is associated with gravelly and sandy banks and grassland habitat types, primarily anthropogenic herb stands.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193518","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}
S. Vesković-Moračanin, S. Stefanović, B. Borović, I. Nastasijević, M. Milijasevic, M. Stojanova, D. Đukić
The aim of this study was to monitor the production of biogenic amines by 156 selected lactic acid bacteria (LAB) strains isolated from Serbian traditionally fermented sausages and cheeses. The method for the determination of biogenic amines is liquid chromatography tandem mass spectrometry (LC-MS/MS). The measured concentrations of putrescine, cadaverine, tryptamine and spermidine (except in 13 LAB strains) were below the detection limit of the analytical method (0.1 mg/L), whereas those of histamine, tyramine and spermine were above the limit of detection, but still not significant. Tyramine was the only amine that had a measured concentration of 59.89 ± 0.06 mg L-1. Most of the tested LAB strains produced tyramine in broth below 26 mg L-1 with the exception of Enterococcus faecalis strains (59.89 ± 6.66 mg L-1) and Enterococcus faecium strains (47.33 ± 8.58 mg L-1). The low concentrations of biogenic amines are considered non-significant from both a technological and safety point of view.
{"title":"Assessment of biogenic amine production by lactic acid bacteria isolated from Serbian traditionally fermented foods","authors":"S. Vesković-Moračanin, S. Stefanović, B. Borović, I. Nastasijević, M. Milijasevic, M. Stojanova, D. Đukić","doi":"10.5937/aaser2253049v","DOIUrl":"https://doi.org/10.5937/aaser2253049v","url":null,"abstract":"The aim of this study was to monitor the production of biogenic amines by 156 selected lactic acid bacteria (LAB) strains isolated from Serbian traditionally fermented sausages and cheeses. The method for the determination of biogenic amines is liquid chromatography tandem mass spectrometry (LC-MS/MS). The measured concentrations of putrescine, cadaverine, tryptamine and spermidine (except in 13 LAB strains) were below the detection limit of the analytical method (0.1 mg/L), whereas those of histamine, tyramine and spermine were above the limit of detection, but still not significant. Tyramine was the only amine that had a measured concentration of 59.89 ± 0.06 mg L-1. Most of the tested LAB strains produced tyramine in broth below 26 mg L-1 with the exception of Enterococcus faecalis strains (59.89 ± 6.66 mg L-1) and Enterococcus faecium strains (47.33 ± 8.58 mg L-1). The low concentrations of biogenic amines are considered non-significant from both a technological and safety point of view.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194094","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}
Jelena Golijan-Pantović, Stefan Gordanić, D. Milinčić, S. Lekić, A. Kostić
On a global level and over a number of years, many researchers have been studying the effects of organic and conventional production methods on the chemical composition of plants and their products. The aim of this study was to determine the potential difference in the contents of several nutrients/phytochemicals in organically and conventionally produced buckwheat grains. Buckwheat was sown in 2016 at a site in Nova Varoš. The experimental plot covered a surface area of 1 ha. The contents of the following nutrients and phytochemicals in buckwheat grains were determined: proteins, pigments (chlorophyll a, chlorophyll b, carotenoids), soluble sugars, starch, free and bound polyphenols and flavonoids, and phytosterols. In addition, the antioxidant properties of the grains were assessed using the ABTS •+ ((2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) test (ability to inhibit ABTS •+ radical cations). There was no statistically significant difference in the contents of proteins, chlorophyll a and free phenols or in regard to the % of antioxidant capacity. On the other hand, two different production methods caused differences in the other chemical parameters. In organic grains, higher contents of carotenoids (6.998 µg g-1 dry matter (DM)), soluble sugar (6.48 mg 100 g-1 DM), starch (2.46 mg 100 g-1 DM), bound polyphenols (1034.3 mg (FAE) kg kg-1 DM), free flavonoids (1094.7 mg (QE) kg-1 DM) and bound flavonoids (1087.2 mg (QE) kg-1 DM) were detected, while in conventional buckwheat grains, there were higher levels of chlorophyll b (24.16 µg g-1 DM) and phytosterols (185.15 mg kg-1 DM). The study showed no clear influence of the production method on the examined parameters.
{"title":"Influence of type of production on the contents of selected nutrients/phytochemicals in buckwheat grains","authors":"Jelena Golijan-Pantović, Stefan Gordanić, D. Milinčić, S. Lekić, A. Kostić","doi":"10.5937/aaser2254107g","DOIUrl":"https://doi.org/10.5937/aaser2254107g","url":null,"abstract":"On a global level and over a number of years, many researchers have been studying the effects of organic and conventional production methods on the chemical composition of plants and their products. The aim of this study was to determine the potential difference in the contents of several nutrients/phytochemicals in organically and conventionally produced buckwheat grains. Buckwheat was sown in 2016 at a site in Nova Varoš. The experimental plot covered a surface area of 1 ha. The contents of the following nutrients and phytochemicals in buckwheat grains were determined: proteins, pigments (chlorophyll a, chlorophyll b, carotenoids), soluble sugars, starch, free and bound polyphenols and flavonoids, and phytosterols. In addition, the antioxidant properties of the grains were assessed using the ABTS •+ ((2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) test (ability to inhibit ABTS •+ radical cations). There was no statistically significant difference in the contents of proteins, chlorophyll a and free phenols or in regard to the % of antioxidant capacity. On the other hand, two different production methods caused differences in the other chemical parameters. In organic grains, higher contents of carotenoids (6.998 µg g-1 dry matter (DM)), soluble sugar (6.48 mg 100 g-1 DM), starch (2.46 mg 100 g-1 DM), bound polyphenols (1034.3 mg (FAE) kg kg-1 DM), free flavonoids (1094.7 mg (QE) kg-1 DM) and bound flavonoids (1087.2 mg (QE) kg-1 DM) were detected, while in conventional buckwheat grains, there were higher levels of chlorophyll b (24.16 µg g-1 DM) and phytosterols (185.15 mg kg-1 DM). The study showed no clear influence of the production method on the examined parameters.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194363","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}
Vesna Đurović, L. Mandić, Milica Mijatović, N. Miletić, Mirjana Radovanović, J. Mladenović, M. Pešaković, D. Đukić
Honey is a natural product which has high nutritional value. Also, it has health benefits, which is the reason for its been used for the prevention of diseases caused by oxidative stress for centuries in many countries. Honey has antibacterial and antioxidant properties, which are the result of the presence of enzymes and chemical and phytochemical components, where phenolic acids and flavonoids play a significant role. The aim of this study was to examine the physico-chemical parameters, antioxidant properties and antimicrobial activity of forest-meadow, acacia and sunflower honey from the Gruža and Požega areas (Republic of Serbia). The tested physico-chemical parameters were found to be within the values prescribed by the Legislation and the Codex Alimentarius Standard. The presence of HMF was not detected in the sample of forest-meadow honey, while the content in other samples (1.09 and 1.79 mg HMF kg-1) was significantly below the value laid down by regulations (40 mg HMF kg-1). Forest-meadow honey had the highest antioxidant activity (35.2%, 26.32%-ABTS and DPPH method, respectively) and the highest content of total phenolics (90.96±5.18 g GAE 100 g-1), while acacia honey exhibited the lowest values for antioxidant activity (11.76%-ABTS; 7.28%-DPPH) and total phenolics (15.75±0,66 g GAE 100 g-1). Forest-meadow honey showed the best antibacterial activity, followed by sunflower and acacia honey.
蜂蜜是一种具有很高营养价值的天然产品。此外，它对健康有益，这就是为什么几个世纪以来，许多国家都用它来预防由氧化应激引起的疾病。蜂蜜具有抗菌和抗氧化特性，这是酶和化学和植物化学成分存在的结果，其中酚酸和类黄酮起着重要作用。本研究的目的是研究来自Gruža和Požega地区(塞尔维亚共和国)的森林草甸、金合欢和向日葵蜂蜜的理化参数、抗氧化性能和抗菌活性。经检测的理化参数均在法规和食品法典标准规定的范围内。森林草甸蜂蜜样品中未检出HMF，而其他样品(1.09和1.79 mg HMF kg-1)的含量显著低于规定值(40 mg HMF kg-1)。森林草地蜂蜜的抗氧化活性最高(分别为35.2%、26.32%-ABTS和DPPH法)，总酚含量最高(90.96±5.18 g GAE 100 g-1)，而金合欢蜂蜜的抗氧化活性最低(11.76%-ABTS;7.28%-DPPH)和总酚(15.75±0.66 g GAE 100 g-1)。森林草甸蜂蜜的抑菌活性最好，其次是向日葵蜂蜜和金合欢蜂蜜。
{"title":"Comparative analysis of antibacterial and antioxidant activity of three different types of honey","authors":"Vesna Đurović, L. Mandić, Milica Mijatović, N. Miletić, Mirjana Radovanović, J. Mladenović, M. Pešaković, D. Đukić","doi":"10.5937/aaser2254115d","DOIUrl":"https://doi.org/10.5937/aaser2254115d","url":null,"abstract":"Honey is a natural product which has high nutritional value. Also, it has health benefits, which is the reason for its been used for the prevention of diseases caused by oxidative stress for centuries in many countries. Honey has antibacterial and antioxidant properties, which are the result of the presence of enzymes and chemical and phytochemical components, where phenolic acids and flavonoids play a significant role. The aim of this study was to examine the physico-chemical parameters, antioxidant properties and antimicrobial activity of forest-meadow, acacia and sunflower honey from the Gruža and Požega areas (Republic of Serbia). The tested physico-chemical parameters were found to be within the values prescribed by the Legislation and the Codex Alimentarius Standard. The presence of HMF was not detected in the sample of forest-meadow honey, while the content in other samples (1.09 and 1.79 mg HMF kg-1) was significantly below the value laid down by regulations (40 mg HMF kg-1). Forest-meadow honey had the highest antioxidant activity (35.2%, 26.32%-ABTS and DPPH method, respectively) and the highest content of total phenolics (90.96±5.18 g GAE 100 g-1), while acacia honey exhibited the lowest values for antioxidant activity (11.76%-ABTS; 7.28%-DPPH) and total phenolics (15.75±0,66 g GAE 100 g-1). Forest-meadow honey showed the best antibacterial activity, followed by sunflower and acacia honey.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194372","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}
S. Djebara, K. El, K. Kanoun, Benali Mohammed, Benmalek Narimene
Beta-casein (β-CN) is a major dairy protein subject to preferential degradation during storage. Our study aimed to isolate β-casein from bovine milk under dissociative conditions by the electrophoretic technique using Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis (SDS-PAGE) and optimize an immunochemical technique such as Mancini radial immunodiffusion in order to monitor the evolution of this milk protein during storage. For this purpose, a series of physicochemical and bacteriological analyses revealed conformity with international standards. This allowed us to use quality milk for more detailed studies of proteins, in particular β-casein, which was selected as a marker of milk protein quality. The total casein of mixed milk samples was isolated and then submitted to electrophoretic separation. Various combinations of acrylamide and bisacrylamide were used and the one corresponding to the ratio 8 g / 230 mg was retained. A total casein deposit of 833 µg provided an adequate b-casein concentration (300 µg) for consistent animal immunization. Thirty Wistar rats were subjected to an immunization protocol for 35 days. The obtained antisera were used to optimize the Mancini technique and to assay b-casein in our samples at different storage times ranging from 3 h to 69 h/+4°C. A decrease in b-casein content from 0.85 mg ml-1 to 0.32 mg ml-1 was detected. These results demonstrate the vulnerability of b-casein at low temperatures and provide information on the origin of milk and its application for dairy or cheese production. In addition, our study confirms the usefulness of immunochemical techniques such as the Mancini test in the determination of β-casein.
{"title":"Electrophoretic isolation of β-casein and optimization of a radial immunodiffusion test for bovine milk quality control","authors":"S. Djebara, K. El, K. Kanoun, Benali Mohammed, Benmalek Narimene","doi":"10.5937/aaser2254121d","DOIUrl":"https://doi.org/10.5937/aaser2254121d","url":null,"abstract":"Beta-casein (β-CN) is a major dairy protein subject to preferential degradation during storage. Our study aimed to isolate β-casein from bovine milk under dissociative conditions by the electrophoretic technique using Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis (SDS-PAGE) and optimize an immunochemical technique such as Mancini radial immunodiffusion in order to monitor the evolution of this milk protein during storage. For this purpose, a series of physicochemical and bacteriological analyses revealed conformity with international standards. This allowed us to use quality milk for more detailed studies of proteins, in particular β-casein, which was selected as a marker of milk protein quality. The total casein of mixed milk samples was isolated and then submitted to electrophoretic separation. Various combinations of acrylamide and bisacrylamide were used and the one corresponding to the ratio 8 g / 230 mg was retained. A total casein deposit of 833 µg provided an adequate b-casein concentration (300 µg) for consistent animal immunization. Thirty Wistar rats were subjected to an immunization protocol for 35 days. The obtained antisera were used to optimize the Mancini technique and to assay b-casein in our samples at different storage times ranging from 3 h to 69 h/+4°C. A decrease in b-casein content from 0.85 mg ml-1 to 0.32 mg ml-1 was detected. These results demonstrate the vulnerability of b-casein at low temperatures and provide information on the origin of milk and its application for dairy or cheese production. In addition, our study confirms the usefulness of immunochemical techniques such as the Mancini test in the determination of β-casein.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194380","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}
B. Veljković, R. Koprivica, M. Gavrilović, Aleksandar Šiljić, V. Rašković, N. Stošić, D. Terzić
An economic analysis of field crop (wheat, corn, triticale and sunflower) production on a family farm, representing a case-study average farm, during one production year involved calculation of production costs, gross margin, economic efficiency and rate of profitability. Calculations showed that the highest amount of gross margin was achieved with corn, followed by sunflower, triticale and wheat. The calculated values of the coefficient of efficiency were in the respective order: 3.59 for corn, 2.16 for sunflower, 1.89 for triticale and 1.79 for wheat. The share of variable costs was also indicated, with special emphasis on high costs of mineral fertilizers and machinery.
{"title":"Economic analysis of field crop production on a family farm","authors":"B. Veljković, R. Koprivica, M. Gavrilović, Aleksandar Šiljić, V. Rašković, N. Stošić, D. Terzić","doi":"10.5937/aaser2253067v","DOIUrl":"https://doi.org/10.5937/aaser2253067v","url":null,"abstract":"An economic analysis of field crop (wheat, corn, triticale and sunflower) production on a family farm, representing a case-study average farm, during one production year involved calculation of production costs, gross margin, economic efficiency and rate of profitability. Calculations showed that the highest amount of gross margin was achieved with corn, followed by sunflower, triticale and wheat. The calculated values of the coefficient of efficiency were in the respective order: 3.59 for corn, 2.16 for sunflower, 1.89 for triticale and 1.79 for wheat. The share of variable costs was also indicated, with special emphasis on high costs of mineral fertilizers and machinery.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194157","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}
Irena Radinovic, S. Vasiljević, Gordana Branković, T. Živanović, S. Prodanović
Red clover (Trifolium pratense L.) is a meadow and pasture species in natural habitats and also a cultivated species used for animal nutrition. The aim of this research was the assessment of the diversity of 46 red clover accessions based on morpho-productive traits. The traits were investigated according to the UPOV descriptors for red clover-number of internodes, number of branches, stem length, stem thickness, middle leaflet length, middle leaflet width, green matter yield and dry matter yield. The principal components analysis (PCA) explained 74% of the variance of the standardized data and showed relationships between 46 red clover accessions and eight morpho-productive traits, associations among traits and performance of accessions. Among the determined Euclidean distances, the smallest value was obtained for the accessions Rotra and Titus (0.048), the largest value was 1.099 for a pair of NCPGRU2 and Čortanovci accessions, and the average value was 0.380. Two clusters of 46 red clover accessions were separated in the dendrogram based upon UPGMA (Unweighted Pair-Group Method with Arithmetic mean) for eight morpho-productive traits. The first cluster included two subclusters, while the second cluster contained four subclusters. The grouping of the accessions from the red clover collection by the UPGMA cluster analysis can be linked to the geographical origin of the accessions: central and Southern Europe for three subclusters and northeastern Europe for one subcluster.
红三叶草(Trifolium pratense L.)是一种自然生境的草牧场种，也是一种用于动物营养的栽培种。以46份红三叶草材料为研究对象，对其形态生产性状的多样性进行了评价。利用UPOV描述符对红三叶草的节间数、分枝数、茎长、茎粗、中小叶长、中小叶宽、绿物质产量和干物质产量进行了研究。主成分分析(PCA)解释了标准化数据74%的方差，揭示了46个红三叶草品种与8个形态生产性状之间的关系、性状间的关联以及品种的生产性能。在确定的欧氏距离中，Rotra和Titus的欧氏距离最小(0.048)，NCPGRU2和Čortanovci的欧氏距离最大(1.099)，平均值为0.380。采用UPGMA (Unweighted Pair-Group Method with Arithmetic mean)对46份红三叶草的8个形态生产性状进行了树图分离。第一个集群包括两个子集群，而第二个集群包含四个子集群。UPGMA聚类分析对红三叶草的分类可以与地理来源联系起来:中欧和南欧有三个亚群，欧洲东北部有一个亚群。
{"title":"Biodiversity of a red clover collection based on morpho-productive traits","authors":"Irena Radinovic, S. Vasiljević, Gordana Branković, T. Živanović, S. Prodanović","doi":"10.5937/aaser2253057r","DOIUrl":"https://doi.org/10.5937/aaser2253057r","url":null,"abstract":"Red clover (Trifolium pratense L.) is a meadow and pasture species in natural habitats and also a cultivated species used for animal nutrition. The aim of this research was the assessment of the diversity of 46 red clover accessions based on morpho-productive traits. The traits were investigated according to the UPOV descriptors for red clover-number of internodes, number of branches, stem length, stem thickness, middle leaflet length, middle leaflet width, green matter yield and dry matter yield. The principal components analysis (PCA) explained 74% of the variance of the standardized data and showed relationships between 46 red clover accessions and eight morpho-productive traits, associations among traits and performance of accessions. Among the determined Euclidean distances, the smallest value was obtained for the accessions Rotra and Titus (0.048), the largest value was 1.099 for a pair of NCPGRU2 and Čortanovci accessions, and the average value was 0.380. Two clusters of 46 red clover accessions were separated in the dendrogram based upon UPGMA (Unweighted Pair-Group Method with Arithmetic mean) for eight morpho-productive traits. The first cluster included two subclusters, while the second cluster contained four subclusters. The grouping of the accessions from the red clover collection by the UPGMA cluster analysis can be linked to the geographical origin of the accessions: central and Southern Europe for three subclusters and northeastern Europe for one subcluster.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194146","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 purpose of study was to identify polyphenolic compounds and antimicrobial properties in berries and leaves of black currant (Ribes nigrum L.). Black currant berries and leaves showed different characteristics. Berries had a higher levels of the studied parameters compared to leaves. Berry extracts contained 2.90 to 5.90 times more total phenolics, flavonoids, condensed tannins and gallotannins compared to leaf extracts, and total antioxidant activity was 5.82 times higher in berries than in leaves. The main flavonol found in our sample of black currant berries and leaves was quercetin, followed by myricetin, while kaempferol was present in very small amounts. The most abundant phenolic acid in berry extract was caffeic acid, while leaf extract was dominated by ferulic acid. Microbial properties of extracts were examined using eight selected indicator strains. The tested extracts showed strong antimicrobial activity, ranging from 55.82 to 199.21 mg mL-1. The results suggest that berries and leaves of black currant are a good source of polyphenolic compounds and have strong antimicrobial activity.
{"title":"Phytochemical and antimicrobial profile of black currant berries and leaves","authors":"S. Paunović, P. Mašković, M. Milinković","doi":"10.5937/aaser2253025p","DOIUrl":"https://doi.org/10.5937/aaser2253025p","url":null,"abstract":"The purpose of study was to identify polyphenolic compounds and antimicrobial properties in berries and leaves of black currant (Ribes nigrum L.). Black currant berries and leaves showed different characteristics. Berries had a higher levels of the studied parameters compared to leaves. Berry extracts contained 2.90 to 5.90 times more total phenolics, flavonoids, condensed tannins and gallotannins compared to leaf extracts, and total antioxidant activity was 5.82 times higher in berries than in leaves. The main flavonol found in our sample of black currant berries and leaves was quercetin, followed by myricetin, while kaempferol was present in very small amounts. The most abundant phenolic acid in berry extract was caffeic acid, while leaf extract was dominated by ferulic acid. Microbial properties of extracts were examined using eight selected indicator strains. The tested extracts showed strong antimicrobial activity, ranging from 55.82 to 199.21 mg mL-1. The results suggest that berries and leaves of black currant are a good source of polyphenolic compounds and have strong antimicrobial activity.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71193571","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}
Z. Mamlic, V. Đukić, G. Dozet, S. Vasiljević, Nenad Đurić, Miloš Balać, Marija Bajagić
The aim of this study was to examine the impact of seed priming on seed quality parameters (germination energy, germination, seedling length and vigor index) of sorghum (Sorghum bicolor L. Moench) and sudangrass (Sorghum sudanense Pers.). The experiment was performed at the Institute of Field and Vegetable Crops, Novi Sad, Serbia. The research was conducted on the seeds of the sorghum variety NS Džin and sudangrass variety Srem. Distilled water and aqueous extracts of young willow branches (Salix matsudana) and mature banana fruits (Musa x paradisiaca) were used to prime the seeds. The seeds were primed for: 1 h, 3 h, 6 h, 12 h and 24 h. The results showed that priming sorghum and sudangrass seeds in aqueous extracts of young willow branches and mature banana fruits can have a positive effect on seed quality parameters: germination energy, germination, seedling length and vigor index. The greatest effect on germination energy and seed germination was achieved in sudangrass by using an aqueous extract of young willow branches. The increase was 9.30% and 9.20%, respectively. Priming sorghum seeds in aquatic extracts of mature banana fruits had the greatest effect on seedling length and vigor index. The increase was 36.86% and 40.33%, respectively. For all research parameters, priming for 3 h was the most effective. However, in addition to the positive effect, priming can also have a negative effect. The most significant reduction was found on sorghum seeds, when primed in an aqueous extract of mature banana fruit for 24 hours. Germination energy and germination were reduced by 7.14% and 9.30%, respectively.
本研究旨在研究种子萌发对高粱(sorghum bicolor L. Moench)和苏丹草(sorghum sudanense Pers.)种子质量参数(萌发能、发芽率、幼苗长度和活力指数)的影响。该实验是在塞尔维亚诺维萨德的大田和蔬菜作物研究所进行的。对高粱品种NS Džin和苏丹草品种Srem的种子进行了研究。用蒸馏水和杨柳枝条(Salix matsudana)和成熟香蕉果实(Musa x paradisiaca)的水提取物作为种子的基质。结果表明，在杨柳幼枝和香蕉成熟果实的水提液中分别浸提1 h、3 h、6 h、12 h和24 h的高粱和藜草种子对种子的萌发能、发芽率、幼苗长度和活力指数均有积极影响。杨柳枝条水提液对苏丹草的萌发能和种子萌发的影响最大。增幅分别为9.30%和9.20%。在香蕉成熟果实水提取物中注入高粱种子对幼苗长度和活力指数的影响最大。增幅分别为36.86%和40.33%。对于所有的研究参数，启动3小时是最有效的。然而，除了积极的影响，启动也可能有消极的影响。最显著的减少是在高粱种子上发现的，当在成熟香蕉果实的水提取物中浸泡24小时时。萌发能和发芽率分别降低7.14%和9.30%。
{"title":"Priming seeds of sorghum and sudangrass using water and aquatic extracts of willow and banana","authors":"Z. Mamlic, V. Đukić, G. Dozet, S. Vasiljević, Nenad Đurić, Miloš Balać, Marija Bajagić","doi":"10.5937/aaser2254129m","DOIUrl":"https://doi.org/10.5937/aaser2254129m","url":null,"abstract":"The aim of this study was to examine the impact of seed priming on seed quality parameters (germination energy, germination, seedling length and vigor index) of sorghum (Sorghum bicolor L. Moench) and sudangrass (Sorghum sudanense Pers.). The experiment was performed at the Institute of Field and Vegetable Crops, Novi Sad, Serbia. The research was conducted on the seeds of the sorghum variety NS Džin and sudangrass variety Srem. Distilled water and aqueous extracts of young willow branches (Salix matsudana) and mature banana fruits (Musa x paradisiaca) were used to prime the seeds. The seeds were primed for: 1 h, 3 h, 6 h, 12 h and 24 h. The results showed that priming sorghum and sudangrass seeds in aqueous extracts of young willow branches and mature banana fruits can have a positive effect on seed quality parameters: germination energy, germination, seedling length and vigor index. The greatest effect on germination energy and seed germination was achieved in sudangrass by using an aqueous extract of young willow branches. The increase was 9.30% and 9.20%, respectively. Priming sorghum seeds in aquatic extracts of mature banana fruits had the greatest effect on seedling length and vigor index. The increase was 36.86% and 40.33%, respectively. For all research parameters, priming for 3 h was the most effective. However, in addition to the positive effect, priming can also have a negative effect. The most significant reduction was found on sorghum seeds, when primed in an aqueous extract of mature banana fruit for 24 hours. Germination energy and germination were reduced by 7.14% and 9.30%, respectively.","PeriodicalId":31632,"journal":{"name":"Acta Agriculturae Serbica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71194225","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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