7 research outputs found

    Some peculiarities of the pluviometric regime in Suceava

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    This paper is part of a comprehensive study on the meteorological characteristics of Suceava locality and presents some peculiarities of the pluviometric regime since 1922. In the 83 years the prevailing frequencies (40-60%) were between 401- 500 mm in the period 1922-1966, while in the period 1967-1986 dominant were the quantities of 601-700 mm annually. The largest share (56%), over the entire 83-year period, had the precipitations between 400 and 600 mm annually, and precipitations below 400 mm were recorded only in two years out of 83 years, respectively 1935 and 1986

    General aspects of influence of meteorological factors on the development of the Colorado beetle, in conditions of Suceava country

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    The study of Colorado potato beetle biology is conducted in close correlation with the meteorological factors from the hibernal period development. The research was conducted in a potato crop in Suceava over four years. For the study on the evolution and hibernation pest were conducted 15 surveys on soil depth of 0-90 cm the autumn and harmful samoles were collected from 5 to 5 cm. The adults density was recorded by executing a ten polls in monoculture determining the load of adults per m². Following the application the 15 ground polls in potato crop to a decreased biological reserve, in the layer of 30-40 cm more severe winter in 2009-2010 and in milder winters 2010-2011 and 2011-2012 the depth of 25-30 cm. Hibernal adult mortality is dependent on both the amount of freezing soil temperatures during and the amount of rainfall recorded in winter

    Some researches concerning the resistance mechanism determination of potato to wart produced by Synchytrium endobioticum through biochemical analyses

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    The paper presents results concerning the resistance mechanism determination of potato to wart, caused by Synchytrium endobioticum, through biochemical analysis, in 10 potato resistant and susceptible genotypes to above pathogen, relating to: dry matter and moisture contents, ash, total nitrogen, total crude protein and starch contents , titratable acidity, catalase and polifenoloxidaze activities, ascorbic acid and total free amino acids contents. Following the analysis carried out on resistant and susceptible potato genotypes to the pathogen was found that indicators refering to dry matter and moisture content, ash, ascorbic acid, titratable acidity and starch contents no guarantee expression of the resistance degree or susceptibility level to pathogens. It is interesting the analyzes of total nitrogen and crude protein contents from tubers, catalase and polifenoloxidaze activities and total free amino acids contents. Thus we can say, after the first analyzes conducted in this direction, the potato genotypes resistant to pathogens, contain over 0.9g nitrogen/100g tissue tuber crude protein over 5.6% total free amino acids content, over 0.40% from d.s., catalase units less than 110 and below 1.70 micromoles of ascorbic acid oxidized by enzyme in 1 gram of tuber tissue for one minute. It is necessary to continue this type of research on a much larger number of resistant and sensitive potato genotypes and take into account other analyzes to those mentioned in this paper, regarding to quality of the protein content, the essential amino acids content, alkaloids, amides, the study of albuminoidal substances compozition etc., which would prevent the cellular system development of the fungus in potato tubers

    Sowing density and fertilization influence on faba bean seed production (Vicia faba L. var. major. harz) under ecological condition from Bucovina Obcines

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    In the researches conducted in the period 2012-2014, it noticed the influence of sowing density and fertilization influence on grain production of faba bean seed (Vicia faba L. var. major. Harz) under the mountain area conditions of the county Suceava. The researches were conducted at the Agricultural Research Center of Pojorâta (which it focused foothill and mountain areas of Bucovina Obcine), on lytic alluvial soil pH (water) 5.1, 2.9 humus content, phosphorus (PAL) 45 ppm potassium (KAL) 80.5 ppm, the degree of base saturation (V) 57.1 and nitrogen index (IN) 2.18. It followed in a bifactorial experience of type 2 x 7, the influence of sowing density with two graduations (20 grains germinable/m2 and 40 bg/m2 ) and fertilization with seven graduations (unfertilized, 40N, 60P2O5, 40N60P2O5, 40N60P2O560K2O, 40t/ha manure 40t/ha manure + 40P2O5). Analyzing the average for the three research years it showed that at the faba bean from major variety, the most effective sowing density is 40 g.s. /m2 , when it could achieve, productions up to 4000 kg/ha, that combined administration of fertilizers with nitrogen and phosphorus achieved yield increases distinct significantly and through applying of manure at a dose of 40 t/ha and at the density of 40 g.s. / m2 it could be achieved yield increases, very substantial

    Some researches concerning the resistance mechanism determination of potato to wart produced by Synchytrium endobioticum through biochemical analyses

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    The paper presents results concerning the resistance mechanism determination of potato to wart, caused by Synchytrium endobioticum, through biochemical analysis, in 10 potato resistant and susceptible genotypes to above pathogen, relating to: dry matter and moisture contents, ash, total nitrogen, total crude protein and starch contents , titratable acidity, catalase and polifenoloxidaze activities, ascorbic acid and total free amino acids contents. Following the analysis carried out on resistant and susceptible potato genotypes to the pathogen was found that indicators refering to dry matter and moisture content, ash, ascorbic acid, titratable acidity and starch contents no guarantee expression of the resistance degree or susceptibility level to pathogens. It is interesting the analyzes of total nitrogen and crude protein contents from tubers, catalase and polifenoloxidaze activities and total free amino acids contents. Thus we can say, after the first analyzes conducted in this direction, the potato genotypes resistant to pathogens, contain over 0.9g nitrogen/100g tissue tuber crude protein over 5.6% total free amino acids content, over 0.40% from d.s., catalase units less than 110 and below 1.70 micromoles of ascorbic acid oxidized by enzyme in 1 gram of tuber tissue for one minute. It is necessary to continue this type of research on a much larger number of resistant and sensitive potato genotypes and take into account other analyzes to those mentioned in this paper, regarding to quality of the protein content, the essential amino acids content, alkaloids, amides, the study of albuminoidal substances compozition etc., which would prevent the cellular system development of the fungus in potato tubers

    The effectiveness of plant metabolites extracted from plants on larvae of the first age at Colorado beetle

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    Metabolic extracts obtained from plants harvested in preparation causes mortality between 67-100% over the same extracts made from plants harvested the year before. The same phenomenon was observed in all variants Repellent who used plants harvested in 2014, and those collected in 2013, only the extract from Tanacetum vulgare L. affected by this phenomenon. Also consumption increases exponentially leaf variants harvested in 2013. These phenomena were determined in the laboratory may lead to the idea that some plants by storing a longer period of time may lose some or transformed into other substances chemical combinations leading ultimately to the differences in mortality of larvae. Since we are tempted to say that the plant extracts are preserved better in alcohol and no in water, knowing very well the maintenance of its property, from the results presented herein just the opposite: larval mortality was higher by 10- 30% in the extracts obtained in water at some alternatives to those obtained in alcoho

    Metabolic Signatures: Pioneering the Frontier of Rectal Cancer Diagnosis and Response to Neoadjuvant Treatment with Biomarkers—A Systematic Review

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    Colorectal cancer (CRC) is one of the most aggressive, heterogenous, and fatal types of human cancer for which screening, and more effective therapeutic drugs are urgently needed. Early-stage detection and treatment greatly improve the 5-year survival rate. In the era of targeted therapies for all types of cancer, a complete metabolomic profile is mandatory before neoadjuvant therapy to assign the correct drugs and check the response to the treatment given. The aim of this study is to discover specific metabolic biomarkers or a sequence of metabolomic indicators that possess precise diagnostic capabilities in predicting the efficacy of neoadjuvant therapy. After searching the keywords, a total of 108 articles were identified during a timeframe of 10 years (2013–2023). Within this set, one article was excluded due to the use of non-English language. Six scientific papers were qualified for this investigation after eliminating all duplicates, publications not referring to the subject matter, open access restriction papers, and those not applicable to humans. Biomolecular analysis found a correlation between metabolomic analysis of colorectal cancer samples and poor progression-free survival rates. Biomarkers are instrumental in predicting a patient’s response to specific treatments, guiding the selection of targeted therapies, and indicating resistance to certain drugs
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