Pub Date : 2018-05-18DOI: 10.15835/BUASVMCN-AGR:003017
M. Soare, P. Iancu, E. Bonciu, I. Nicolae, L. B. Dragomir, O. Păniță
The aim of this study was to make a comparative analyse of nine willow genotypes (seven Romanian and two Swedish clones) in order to test them for short rotation coppice. Researches have been carried out in the sandy soils from Southern Romania, over a period of two years of vegetation. There were made determinations as concern plants growth and development and were referring to survival rate, stem height, number of shoots/plant and stem diameter at the base. Hydric stress is one of the main factors of limiting plant growth on this type of soil and the experimented willow genotypes have reacted differently. The obtained results have shown the fact that the largest vegetative growth was recorded in Pesred and Inger genotypes. It also emphasizes with good results in terms of the quantity of biomass RO 1077, Fragisal and Robisal genotypes. Based on the obtained results it can appreciate that Salix sp. represents a solution of utilize the sandy soils which have low fertile and obtaining considerable amounts of biomass, in the conditions of ensuring of water and nutritive resources.
{"title":"Evaluation of the behavior of some genotypes of Salix sp. in the conditions of sandy soils.","authors":"M. Soare, P. Iancu, E. Bonciu, I. Nicolae, L. B. Dragomir, O. Păniță","doi":"10.15835/BUASVMCN-AGR:003017","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:003017","url":null,"abstract":"The aim of this study was to make a comparative analyse of nine willow genotypes (seven Romanian and two Swedish clones) in order to test them for short rotation coppice. Researches have been carried out in the sandy soils from Southern Romania, over a period of two years of vegetation. There were made determinations as concern plants growth and development and were referring to survival rate, stem height, number of shoots/plant and stem diameter at the base. Hydric stress is one of the main factors of limiting plant growth on this type of soil and the experimented willow genotypes have reacted differently. The obtained results have shown the fact that the largest vegetative growth was recorded in Pesred and Inger genotypes. It also emphasizes with good results in terms of the quantity of biomass RO 1077, Fragisal and Robisal genotypes. Based on the obtained results it can appreciate that Salix sp. represents a solution of utilize the sandy soils which have low fertile and obtaining considerable amounts of biomass, in the conditions of ensuring of water and nutritive resources.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"79 1","pages":"44-49"},"PeriodicalIF":0.0,"publicationDate":"2018-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82265067","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 : 2018-05-17DOI: 10.15835/buasvmcn-fst:0006
I. Simion, V. Rus, M. Salcudean, Catalin Moise Dogar, M. Tarcea, F. Ruţa
The scale of caffeinated drinks offered for young adults is large and also is the risk for abuse followed by heart or brain injuries due to high levels of caffeine, taurine, sugars etc. For this purpose, we chose to evaluate the risk behaviors in a group of Mures medical students and assess their practices and knowledge of excess caffeine drinks intake. For this study, we used a food frequency questionnaire containing 26 questions related to personal data, food behaviors, types of food and drink consumed and the frequency of consumption. The questionnaire was applied to 427 Mures medical students in 2016. On average, 2/3 of the Mures medical students associate an excess of coffee, energy drinks and other types of caffeinated beverages, especially during the exams period. From the list of preferred drinks that our students chose, in descending order, are: coffee, carbonated beverages, alcoholic beverages and energy drinks. Students often turn to alcoholic drinks, sometimes in combination with energy drinks, raising the risk for their health. 25% have only coffee in the morning, on empty stomach, skipping breakfast. More than half of them have at least 3 coffees per day, with possible health impact on long term. Our data emphasizes once more the importance of health education in schools and universities, especially for medical students and future doctors, and the need for efficient community interventions in order to prevent lifestyle behaviors at risk.
{"title":"A Pilot Study Evaluating Preferences for Caffeinated Drinks Consumption Among Mures Medical Students","authors":"I. Simion, V. Rus, M. Salcudean, Catalin Moise Dogar, M. Tarcea, F. Ruţa","doi":"10.15835/buasvmcn-fst:0006","DOIUrl":"https://doi.org/10.15835/buasvmcn-fst:0006","url":null,"abstract":"The scale of caffeinated drinks offered for young adults is large and also is the risk for abuse followed by heart or brain injuries due to high levels of caffeine, taurine, sugars etc. For this purpose, we chose to evaluate the risk behaviors in a group of Mures medical students and assess their practices and knowledge of excess caffeine drinks intake. For this study, we used a food frequency questionnaire containing 26 questions related to personal data, food behaviors, types of food and drink consumed and the frequency of consumption. The questionnaire was applied to 427 Mures medical students in 2016. On average, 2/3 of the Mures medical students associate an excess of coffee, energy drinks and other types of caffeinated beverages, especially during the exams period. From the list of preferred drinks that our students chose, in descending order, are: coffee, carbonated beverages, alcoholic beverages and energy drinks. Students often turn to alcoholic drinks, sometimes in combination with energy drinks, raising the risk for their health. 25% have only coffee in the morning, on empty stomach, skipping breakfast. More than half of them have at least 3 coffees per day, with possible health impact on long term. Our data emphasizes once more the importance of health education in schools and universities, especially for medical students and future doctors, and the need for efficient community interventions in order to prevent lifestyle behaviors at risk.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"19 1","pages":"15"},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85393722","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 : 2018-05-17DOI: 10.15835/BUASVMCN-FST:0026
L. Salanță, Nicoleta E. Borza, Maria Tofană, C. Pop, E. Mudura, M. Mihai
The aim of this study was to compare the main ferments selected to be used in the process of mead making: Saccharomyces cerevisiae yeast and pollen, the latter having been used in ancient times as ferment. It has only been recently that the market has exhibited significant interest in developing foods containing functional ingredients. Honey has been a corollary of hidden nutritional and medicinal value for centuries. Mead is the result of alcoholic fermentation, by mixing different proportions of honey with water and pollen, as a fermentation agent. The fermentation process was monitored by collecting samples periodically and analyzing the alcohol concentration, total extract, the level of fermentation, the pH, as well as the yeast number with the Thoma cell counting chamber. Additionally, physicochemical (acidity and vitamin C) and sensory parameters were determined for the final products. Results and discussion: Pollen-fermented beverages have a higher alcohol concentration than beverages fermented with Saccharomyces cerevisiae, which is explained by the additional intake of carbohydrates induced by the addition of pollen.
{"title":"Comparison of Ferments in the Process of Functional Beverage Making","authors":"L. Salanță, Nicoleta E. Borza, Maria Tofană, C. Pop, E. Mudura, M. Mihai","doi":"10.15835/BUASVMCN-FST:0026","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:0026","url":null,"abstract":"The aim of this study was to compare the main ferments selected to be used in the process of mead making: Saccharomyces cerevisiae yeast and pollen, the latter having been used in ancient times as ferment. It has only been recently that the market has exhibited significant interest in developing foods containing functional ingredients. Honey has been a corollary of hidden nutritional and medicinal value for centuries. Mead is the result of alcoholic fermentation, by mixing different proportions of honey with water and pollen, as a fermentation agent. The fermentation process was monitored by collecting samples periodically and analyzing the alcohol concentration, total extract, the level of fermentation, the pH, as well as the yeast number with the Thoma cell counting chamber. Additionally, physicochemical (acidity and vitamin C) and sensory parameters were determined for the final products. Results and discussion: Pollen-fermented beverages have a higher alcohol concentration than beverages fermented with Saccharomyces cerevisiae, which is explained by the additional intake of carbohydrates induced by the addition of pollen.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"6 1","pages":"90"},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85308863","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 : 2018-05-17DOI: 10.15835/BUASVMCN-FST:2017.0037
A. Stǎnilǎ, Z. Diaconeasa, R. Sima, S. Stănilă, N. Sima
The aim of this work was to test some solvents in order to improve the free amino acids extraction from lyophilised brewer’s yeast. The brewer’ yeast was treated with four types of extraction solvents: Solvent I – acetonitrile 25%/HCl 0.01M (ACN); Solvent II – ethanol 80%; solvent III – HCl 0.05M/deionized water (1/1 volume); Solvent IV – HCl 0.05M/ethanol 80% (1/1 volume). The supernatants were analysed by HPLC-DADESI-MS method. Acetonitrile provided the less quantities and number of amino acids extracted due to its weaker polarity. Solvent II and IV (ethanol, respectively acidified ethanol), which have an increased polarity, extracted 15 amino acids due to the addition of HCl in solvent IV. Solvent III (acidified water) proved to be the best extraction solvent for the amino acids from brewer’s yeast providing the separation of 17 compounds: GLN, ASN, SER, GLY, ALA, ORN, PRO, HIS, LYS, GLU, TRP, LEU, PHE, ILE, AAA, HPHE, TYR.
{"title":"Effects of Extraction Solvents on the Quantification of Free Amino Acids in Lyophilised Brewer’s Yeast","authors":"A. Stǎnilǎ, Z. Diaconeasa, R. Sima, S. Stănilă, N. Sima","doi":"10.15835/BUASVMCN-FST:2017.0037","DOIUrl":"https://doi.org/10.15835/BUASVMCN-FST:2017.0037","url":null,"abstract":"The aim of this work was to test some solvents in order to improve the free amino acids extraction from lyophilised brewer’s yeast. The brewer’ yeast was treated with four types of extraction solvents: Solvent I – acetonitrile 25%/HCl 0.01M (ACN); Solvent II – ethanol 80%; solvent III – HCl 0.05M/deionized water (1/1 volume); Solvent IV – HCl 0.05M/ethanol 80% (1/1 volume). The supernatants were analysed by HPLC-DADESI-MS method. Acetonitrile provided the less quantities and number of amino acids extracted due to its weaker polarity. Solvent II and IV (ethanol, respectively acidified ethanol), which have an increased polarity, extracted 15 amino acids due to the addition of HCl in solvent IV. Solvent III (acidified water) proved to be the best extraction solvent for the amino acids from brewer’s yeast providing the separation of 17 compounds: GLN, ASN, SER, GLY, ALA, ORN, PRO, HIS, LYS, GLU, TRP, LEU, PHE, ILE, AAA, HPHE, TYR.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"52 1","pages":"53"},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76153433","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 : 2018-05-17DOI: 10.15835/buasvmcn-fst:0033
C. Pop, C. Topan, A. Rotar, L. Salanță, M. Jimborean, M. Nagy
This research explored the sensory characteristics and consumer acceptance of novel yogurt. The study aimed to develop a new type of yogurt through addition of microcapsules with Achillea melifolium infusion and jelly from the pepino fruit. The effect of yogurt supplementation with four different levels (0%,1%,3%,5%) of microcapsules with Achillea melifolium infusion (MI) and four levels (0%,3%,7%,11%) of pepino juice jelly (PJ) on sensory properties and the viability of lactic acid bacteria in yogurts during storage (21 days) at 4°C was evaluated. The yogurt supplementation with 3% microcapsules and 7% jelly significantly improves the stability of the lactic acid bacteria, that contained the recommended levels of 108 cfu/g lactic acid bacteria at the end of 21-days shelf life. All the yogurt samples, however, contained the recommended levels of (106–107 cfu/g) lactic acid bacteria at the end of 21-day shelf life.The yogurt with 3% microcapsules and 7% jelly was the most appreciated (6.78 points), followed by the classic yogurt (5.98 points). Total phenols content was 251 mg GAE/g for A. millefolium infusion and 117 mg GAE/g for pepino juice. The radical scavenging activity of A. millefolium infusion was 78% and for pepino extract 56.30%.
{"title":"The Evaluation of the Sensory and Microbiological Properties of the Yogurt Supplemented with Achillea melifolium and Solanum muricatum","authors":"C. Pop, C. Topan, A. Rotar, L. Salanță, M. Jimborean, M. Nagy","doi":"10.15835/buasvmcn-fst:0033","DOIUrl":"https://doi.org/10.15835/buasvmcn-fst:0033","url":null,"abstract":"This research explored the sensory characteristics and consumer acceptance of novel yogurt. The study aimed to develop a new type of yogurt through addition of microcapsules with Achillea melifolium infusion and jelly from the pepino fruit. The effect of yogurt supplementation with four different levels (0%,1%,3%,5%) of microcapsules with Achillea melifolium infusion (MI) and four levels (0%,3%,7%,11%) of pepino juice jelly (PJ) on sensory properties and the viability of lactic acid bacteria in yogurts during storage (21 days) at 4°C was evaluated. The yogurt supplementation with 3% microcapsules and 7% jelly significantly improves the stability of the lactic acid bacteria, that contained the recommended levels of 108 cfu/g lactic acid bacteria at the end of 21-days shelf life. All the yogurt samples, however, contained the recommended levels of (106–107 cfu/g) lactic acid bacteria at the end of 21-day shelf life.The yogurt with 3% microcapsules and 7% jelly was the most appreciated (6.78 points), followed by the classic yogurt (5.98 points). Total phenols content was 251 mg GAE/g for A. millefolium infusion and 117 mg GAE/g for pepino juice. The radical scavenging activity of A. millefolium infusion was 78% and for pepino extract 56.30%.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"71 1","pages":"93"},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90623693","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 : 2017-11-26DOI: 10.15835/BUASVMCN-AGR:0031
R. Vidican, V. Stoian, I. Rotar, F. Păcurar
Microbial groups developed in the rhizosphere ensure the stability and dynamics of nutrient transfer processes to plants. Additional soil inoculation with rhizospheric bacteria acts to expand the ecological niche, supplements the activity, the number of individuals and promote plant growth. In today’s agriculture, there is a need for the usage of rhizosphere microflora and integrative approaches to stimulate plant growth. The aim of the study is to evaluate the use of biofertilizers as starter stimulators in autumn wheat. Different concentrations of Bactofil, containing rhizospheric bacteria, were applied in small rhizothrones. Evaluation of relationships between bacterial inoculum and plant reveals the degree of applicability and adaptation to the soil conditions of exogenous microflora. Doses of 15.6 x 108 and 20.8 x 108 cells/m2 stimulates the root elongation and higher level of mycorrhization. Bioproducts can be viable solutions to stimulate the initial development of wheat plants.
{"title":"The starter effect of non-symbiotic microbial bioproducts on wheat.","authors":"R. Vidican, V. Stoian, I. Rotar, F. Păcurar","doi":"10.15835/BUASVMCN-AGR:0031","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:0031","url":null,"abstract":"Microbial groups developed in the rhizosphere ensure the stability and dynamics of nutrient transfer processes to plants. Additional soil inoculation with rhizospheric bacteria acts to expand the ecological niche, supplements the activity, the number of individuals and promote plant growth. In today’s agriculture, there is a need for the usage of rhizosphere microflora and integrative approaches to stimulate plant growth. The aim of the study is to evaluate the use of biofertilizers as starter stimulators in autumn wheat. Different concentrations of Bactofil, containing rhizospheric bacteria, were applied in small rhizothrones. Evaluation of relationships between bacterial inoculum and plant reveals the degree of applicability and adaptation to the soil conditions of exogenous microflora. Doses of 15.6 x 108 and 20.8 x 108 cells/m2 stimulates the root elongation and higher level of mycorrhization. Bioproducts can be viable solutions to stimulate the initial development of wheat plants.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"22 1","pages":"134-139"},"PeriodicalIF":0.0,"publicationDate":"2017-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91012247","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 : 2017-11-26DOI: 10.15835/BUASVMCN-AGR:0015
I. Vaida, I. Rotar, F. Păcurar
Over time, studies of the vegetation of natural grasslands have evolved from simple observations to rigorous research. Feed obtained from natural meadows without major technological imputations is mediocre in quality, and pastures in a rather advanced state of degradation. The main purpose of this paper is the ecological and fodder evaluation of the Festuca rubra type of grasslands in the Apuseni Mountains based on the floristic composition and the productivity of these grasslands. The experience was carried out in Ghetari village, Apuseni Mountains, which was located in 2001, following the method of randomized blocks with 4 experimental variants in 4 rehearsals. Each variant were fertilized with organic inputs using the same quantities each year. In the paper we use the results obtained after 15 years of experience. The application of organic fertilizers caused significant changes in the canopy causing changes in the dominance of the type of grassland. The livestock manure applied on the studied grassland has increases significant yield production at all variants of fertilization. In this paper it was shown on which species the productivity of the grassland increased from the control variant to the fertilized variant with the maximum dose. Regarding the analysis of the phytodiversity, this tells us if the number of species is reduced in all the treatments, 10 t/ha of manure leads to an increase in phytocoenosis equivalence and implicitly to the Shannon index.
{"title":"The cumulative effect of manure on a Festuca rubra grasslands for 15 years.","authors":"I. Vaida, I. Rotar, F. Păcurar","doi":"10.15835/BUASVMCN-AGR:0015","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:0015","url":null,"abstract":"Over time, studies of the vegetation of natural grasslands have evolved from simple observations to rigorous research. Feed obtained from natural meadows without major technological imputations is mediocre in quality, and pastures in a rather advanced state of degradation. The main purpose of this paper is the ecological and fodder evaluation of the Festuca rubra type of grasslands in the Apuseni Mountains based on the floristic composition and the productivity of these grasslands. The experience was carried out in Ghetari village, Apuseni Mountains, which was located in 2001, following the method of randomized blocks with 4 experimental variants in 4 rehearsals. Each variant were fertilized with organic inputs using the same quantities each year. In the paper we use the results obtained after 15 years of experience. The application of organic fertilizers caused significant changes in the canopy causing changes in the dominance of the type of grassland. The livestock manure applied on the studied grassland has increases significant yield production at all variants of fertilization. In this paper it was shown on which species the productivity of the grassland increased from the control variant to the fertilized variant with the maximum dose. Regarding the analysis of the phytodiversity, this tells us if the number of species is reduced in all the treatments, 10 t/ha of manure leads to an increase in phytocoenosis equivalence and implicitly to the Shannon index.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"72 1","pages":"126-133"},"PeriodicalIF":0.0,"publicationDate":"2017-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77804441","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 : 2017-11-26DOI: 10.15835/BUASVMCN-AGR:0038
Stela Jelea, O. Jelea, Lucia Mihălescu, Zorica Voșgan
Copper’s participation in plant development derives from the fact that it has an important role in respiration, photosynthesis, lignification, growth and is a constituent of proteins and enzymes (Kabata-Pendias, 2011; González et al. 2012). Excess of metals in soil can be harmful to plants. Due to human activities, copper contamination is a problem all over the world. Copper sulphate has been used to fight fungal diseases (Kabata-Pendias, 2011). Long-term applied fungicides allow the accumulation of copper in soil. Metal pollution is a problem due to the penetration of metals in food chains (Shorrocks and Alloway, 1988; Toma et al. 2002). of CuSO4 x 5H20. The study aimed to investigate the morphological and anatomical effects caused to vegetative organs developed from immersed caryopses at different concentrations of copper sulfate.
铜参与植物发育源于它在呼吸、光合作用、木质素化、生长中起重要作用，并且是蛋白质和酶的组成部分(Kabata-Pendias, 2011;González et al. 2012)。土壤中过量的金属可能对植物有害。由于人类活动，铜污染是一个世界性的问题。硫酸铜已用于防治真菌疾病(Kabata-Pendias, 2011年)。长期施用杀菌剂可使铜在土壤中积累。由于金属在食物链中的渗透，金属污染是一个问题(Shorrocks和Alloway, 1988;Toma et al. 2002)。CuSO4 x 5H20。本研究旨在探讨不同浓度硫酸铜对浸没颖果营养器官发育的形态学和解剖学影响。
{"title":"The influence of copper sulphate on growth, morphology and on anatomy of vegetative organs of Triticum aestivum L.","authors":"Stela Jelea, O. Jelea, Lucia Mihălescu, Zorica Voșgan","doi":"10.15835/BUASVMCN-AGR:0038","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:0038","url":null,"abstract":"Copper’s participation in plant development derives from the fact that it has an important role in respiration, photosynthesis, lignification, growth and is a constituent of proteins and enzymes (Kabata-Pendias, 2011; González et al. 2012). Excess of metals in soil can be harmful to plants. Due to human activities, copper contamination is a problem all over the world. Copper sulphate has been used to fight fungal diseases (Kabata-Pendias, 2011). Long-term applied fungicides allow the accumulation of copper in soil. Metal pollution is a problem due to the penetration of metals in food chains (Shorrocks and Alloway, 1988; Toma et al. 2002). of CuSO4 x 5H20. The study aimed to investigate the morphological and anatomical effects caused to vegetative organs developed from immersed caryopses at different concentrations of copper sulfate.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"1 1","pages":"140-141"},"PeriodicalIF":0.0,"publicationDate":"2017-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89567307","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 : 2017-11-26DOI: 10.15835/BUASVMCN-AGR:0006
Alexandru Ghețe, A. Copândean, V. Has, C. Chețan, M. Duda, R. Călugăr, A. Varga
INTRODUCTION The production of certified seed for maize double hybrids is based on the crossing of two simple maize hybrids, one of which is used as a seed producer (maternal form, AxB) and another as pollinator (paternal form, CxD). The production of the seed in the case of double hybrids presents some advantages because the production obtained in the hybridization lot is high, the cost of lower seed production and includes a minimum risk (Penčić and Hadžistević, 1982). Seed quality indices are generally better than by simple hybrids, especially when adverse conditions occur during production (Sarca, 2004). In the production of corn seed, the relationship between the maternal and paternal form is determined by the amount of the pollen of the paternal form, the habitus of the two partners, the sowing mode of the two cross-breeders (concomitant or offset). The possibilities of seed ratio provided by the existing seeds on the agricultural holding and the mode of harvesting each parental form (Haș, 2006). The main features of seed production at the Turda 200 hybrid recommended by ARDS Turda in 2001 year were: – The reaction to androsterility of the maternform: androsterile; – The mother/ father sowing ratio recommended by SCA Turda (2001) was 6: 2 or 12: 4, the recommended density was 50.000-60.000 plants per hectare for the parental form and 60.000-70.000 plants per hectare for the father form; – The sowing mode of the two parental forms was concomitant; – Special works: control of androsterility; – The amount of useful heats needed for maturity of the maternal form of 1.090 ° C Haş et al. (1982) have found that under certain warmer summer conditions there may be a gap in favor of blooming father form up to -8 days. In this situation, it is appropriate to make the offset sowing of the two parental forms, in the first epoch, to resemble the matern form, and the sowing of the pollination form to be done at the rising of the maternal form. Our study aims to verifying the sowing ratio between simple parental hybrids at HD Turda 200, and indentifying the influence of concomitant/ offset sowing of simple parental hybrids on seed production F1 and its characters.
玉米双杂交种认证种子的生产是基于两个简单的玉米杂交种杂交，其中一个用作种子生产者(母系形式，AxB)，另一个用作传粉者(父系形式，CxD)。在双杂交的情况下，种子的生产具有一些优势，因为在杂交批中获得的产量高，种子生产成本低，风险最小(pen伊奇和Hadžistević， 1982年)。种子质量指标一般优于简单杂交，特别是在生产过程中出现不利条件时(Sarca, 2004)。在玉米种子的生产中，母系和父系的关系是由父系花粉的数量、两个杂交育种者的习性、两个杂交育种者的播种方式(伴随或抵消)决定的。现有种子在农业持有和每个亲本形式的收获模式上提供的种子比例的可能性(hamid, 2006)。2001年图尔达协会推荐的图尔达200杂交种制种的主要特点是:——母本对雄性不育的反应:雄性不育;- SCA Turda(2001)推荐的母本/父本播种比例为6:2或12:4，亲本的推荐密度为50,000 - 60,000株/公顷，父本的推荐密度为60,000 - 70,000株/公顷;-两种亲本的播种方式是伴随的;-特别工作:控制雄性不育;-母体形态成熟所需的有用热量为1.090°C hahai et al.(1982)发现，在某些较温暖的夏季条件下，可能存在有利于开花父亲形态的差距，最长可达-8天。在这种情况下，使两个亲本形式的偏移播种是适当的，在第一个时期，类似于母本形式，授粉形式的播种在母本形式的上升时进行。本研究旨在验证HD Turda 200上简单亲本杂种的播量比，并确定简单亲本杂种伴随/抵消播种对制种F1及其性状的影响。
{"title":"Researches on the influence of the sowing period of simple hybrids on seed production for the Turda 200 maize hybrid.","authors":"Alexandru Ghețe, A. Copândean, V. Has, C. Chețan, M. Duda, R. Călugăr, A. Varga","doi":"10.15835/BUASVMCN-AGR:0006","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:0006","url":null,"abstract":"INTRODUCTION The production of certified seed for maize double hybrids is based on the crossing of two simple maize hybrids, one of which is used as a seed producer (maternal form, AxB) and another as pollinator (paternal form, CxD). The production of the seed in the case of double hybrids presents some advantages because the production obtained in the hybridization lot is high, the cost of lower seed production and includes a minimum risk (Penčić and Hadžistević, 1982). Seed quality indices are generally better than by simple hybrids, especially when adverse conditions occur during production (Sarca, 2004). In the production of corn seed, the relationship between the maternal and paternal form is determined by the amount of the pollen of the paternal form, the habitus of the two partners, the sowing mode of the two cross-breeders (concomitant or offset). The possibilities of seed ratio provided by the existing seeds on the agricultural holding and the mode of harvesting each parental form (Haș, 2006). The main features of seed production at the Turda 200 hybrid recommended by ARDS Turda in 2001 year were: – The reaction to androsterility of the maternform: androsterile; – The mother/ father sowing ratio recommended by SCA Turda (2001) was 6: 2 or 12: 4, the recommended density was 50.000-60.000 plants per hectare for the parental form and 60.000-70.000 plants per hectare for the father form; – The sowing mode of the two parental forms was concomitant; – Special works: control of androsterility; – The amount of useful heats needed for maturity of the maternal form of 1.090 ° C Haş et al. (1982) have found that under certain warmer summer conditions there may be a gap in favor of blooming father form up to -8 days. In this situation, it is appropriate to make the offset sowing of the two parental forms, in the first epoch, to resemble the matern form, and the sowing of the pollination form to be done at the rising of the maternal form. Our study aims to verifying the sowing ratio between simple parental hybrids at HD Turda 200, and indentifying the influence of concomitant/ offset sowing of simple parental hybrids on seed production F1 and its characters.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"57 1","pages":"79-84"},"PeriodicalIF":0.0,"publicationDate":"2017-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80029279","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 : 2017-11-26DOI: 10.15835/BUASVMCN-AGR:0017
B. Onica, R. Vidican, V. Șandor, T. Brad, M. Șandor
Agricultural practices, such as the use of fertilizers, can change the structure and function of soil microbial community. Monitoring and assessing the soil microbiota and its dynamics related to different factors can be a powerful tool for understanding basic and applied ecological contexts. The main objective of this paper was to assess the changes of carbon turnover rate and the microbial metabolic activity, when different types of fertilizers were used, process called priming effect. A microcosm experiment was designed and performed under controlled temperature and humidity and the soil samples were analyzed using the MicroResp technique. Results show that the integration in soil of different carbon sources, such as green manure, can lead to a positive priming effect and integration of mineral fertilizers can lead to negative priming effect. The carbon sources with the highest respiratory activity were α-ketoglutaric acid, malic acid, oxalic acid, citric acid, while the lowest respiratory activity was obtained in case of arginine.
{"title":"Priming Effect Induced by the Use of Different Fertilizers on Soil Functional Diversity","authors":"B. Onica, R. Vidican, V. Șandor, T. Brad, M. Șandor","doi":"10.15835/BUASVMCN-AGR:0017","DOIUrl":"https://doi.org/10.15835/BUASVMCN-AGR:0017","url":null,"abstract":"Agricultural practices, such as the use of fertilizers, can change the structure and function of soil microbial community. Monitoring and assessing the soil microbiota and its dynamics related to different factors can be a powerful tool for understanding basic and applied ecological contexts. The main objective of this paper was to assess the changes of carbon turnover rate and the microbial metabolic activity, when different types of fertilizers were used, process called priming effect. A microcosm experiment was designed and performed under controlled temperature and humidity and the soil samples were analyzed using the MicroResp technique. Results show that the integration in soil of different carbon sources, such as green manure, can lead to a positive priming effect and integration of mineral fertilizers can lead to negative priming effect. The carbon sources with the highest respiratory activity were α-ketoglutaric acid, malic acid, oxalic acid, citric acid, while the lowest respiratory activity was obtained in case of arginine.","PeriodicalId":9380,"journal":{"name":"Bulletin of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca","volume":"10 1","pages":"107-115"},"PeriodicalIF":0.0,"publicationDate":"2017-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81147033","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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