Mitre Viorel

Mitre Viorel
University of Agricultural Sciences and Veterinary Medicine | USAMV Cluj · Department of Horticulture and Landscape Architecture

Professor, PhD

About

52
Publications
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210
Citations
Introduction

Publications

Publications (52)
Article
Full-text available
Stress caused by drought is an important factor that affects the growth and development of highbush blueberry plants. In vitro screening for drought stress tolerance is of major importance in identifying cultivars that have optimal stress tolerance and productivity. The aim of this study was to evaluate the responses of five in vitro-grown highbush...
Article
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Apple is an important dietary source of carotenoids and phenolic compounds, and its regular consumption is associated with several health benefits. The aim of this study was to evaluate the phytochemical composition of fresh peels of four red-skinned (“Champion”, “Generos”, “Idared”, “Florina”) and two yellow-skinned (“Golden Delicious”, “Reinette...
Article
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We evaluated the influence of various culture media and plant growth regulators (PGR) upon axillary shoot proliferation rates and shoot lengths obtained in the in vitro multiplication stage in cherry rootstock 'Gisela 5'. The treatments consisted of the use of three basal media: Driver and Kuniyuki (DKW), Murashige and Skoog (MS), Woody Plant Mediu...
Article
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The research subject of this paper was conducted in Satu Mare County, Romania, where three strawberry cultivars have been studied, namely ‘Alba’, ‘Viktoriana’ and ‘Camarosa’, on two different types of mulch (black mulch and straw mulch). Observations, measurements, and determinations have been made regarding the growing vigor of the bushes, product...
Article
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Weed problems were reported in almost all production areas, and management of competing unwanted vegetation has long been an issue for commercial growers all around the world. A field trial was set up in 2016 in Bologa, Cluj county, Romania, in order to examine the influence that different mulches have on weed control, crop growth, yield and soil p...
Article
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The influence of cutting roots on the growth and fruiting of ‘top group’ plum cultivars (‘Topfirst’, ‘Topfive’, ‘Toptaste’, ‘Tophit’ and ‘Topend Plus’), under the pedoclimatic conditions of Sînmihaiu Almasului, in the centre of Transylvania, Romania, in 2017-2018, was studied. The trees were grafted on Saint Julien rootstock, trained as Zahn Spinde...
Article
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Pollen of four cherry cultivars (‘Lapins, ‘Kordia’, ‘Sylvia’, ‘Regina’) was collected and examined with microscop to determine its germination capacity. It was observed that pollen fertility varied from 18.7 % to 80.1 %. Environmental conditions of the studied area as well as applied treatments affected pollen germination capacity. Due to the high...
Article
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The pigments composition of sweet cherry leaves (Prunus avium L.) were identified for the first time under condition of Cluj-Napoca city. Five cherry tree varieties (Merchant, Early Red, Lapins, Burlat, Kordia) have been selected in autumn of 2016 in order to identify and quantify the major pigments in these types of leaves. Five carotenoids (lutei...
Article
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In the view of sustainable management of Rhagoletis cerasi (L.) (Diptera, Tephritidae), a key pest of cherry orchards in Europe, we tested the efficacy of five blends containing male produced volatiles that were used as lures on yellow sticky traps, during a two year field study. Results show a superior efficacy of one of the blends (RC1 = 2-hexano...
Article
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Crabapples offer a wide variety of tree forms and size, leaf shapes, flowers and colourful fruits which improve the quality of green spaces, being an excellent four-season landscape trees. The aim of this study was to determine flower development of Malus x zumi ‘Professor Sprenger’ using Biologische Bundesantalt, Bundessortenamt, and Chemische Ind...
Article
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The control of apple scab and powdery mildew is a challenge for organic fruit growing. Bicarbonate salts are already consecrate in reducing the attack of scab and powdery mildew in organic apple culture. In the current study the influence of some products accepted in organic apple production to control scab and powdery mildew (potasium bicarbonate,...
Article
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Samples from ‘Stanley’, ‘Vânăt de Italia’ and ‘Tuleu Gras’ plum cultivars were collected from two different positions of the tree crown (i.e., inside, and periphery of the crown) at six different harvesting times, starting with the phase when plum fruits were the size of a bean until they reached full maturity at 21 days intervals. The main phytoch...
Article
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The influence of rootstock on the growth and fruiting of three sweet cherry cultivars (‘Bigarreau Burlat’, ‘Kordia’, ‘Regina’) was studied under the pedoclimatic conditions of Cluj-Napoca, Romania, in 2014-2016. The trees were grafted on Gisela 5 rootstock, trained as Zahn Spindle and the orchard had a density of 1666 trees/ha. Root were cut twice,...
Article
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The study present the detail descriptions of the stages of stone fruits growth, Prunus avium and Prunus persica, according to the BBCH scale. Phenological data were collected from 4 years old trees of P.avium and P. persica. The development stage of each organ was recorded during two growing seasons (2015-2016). Photographs of each stage were taken...
Article
The analysis of the existing relations between characters is of great importance because it allows the selection of genotypes that possess simultaneously a combination of several useful characters. Values close to +1 indicates a strong positive correlation; those who are closed to -1 indicates a strong negative correlation and values close to zero...
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The influence of Prunus Mahaleb L. and ‘Gisela 5’ rootstocks on the growth of ‘Biggareau Burlat’ sweet cherry cultivar was evaluate on the environmental conditions of Cluj-Napoca city, in 2015, in a high-density plot (trees are planted at the distance of 4 x 1.5 m) with 1666 trees/ha, trained as spindle busch, with trellis system and drip fert-irig...
Article
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The study was carried out to investigate the visual impact of using fruit trees in urban landscapes by applying the Scenic Beauty Estimation Method (SBE). Thirty students from the Faculty of Horticulture were asked to assign scenic beauty values to different landscapes with and without the presence of fruit trees in urban areas. The results show th...
Article
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Fruit trees are essential components of different types of greenery, including not only private gardens but also historical and modern public parks and gardens of many other cities. The research was carried out in spring 2016 by visiting different parks. Fruit trees were identified in 22 public parks of Warsaw situated in different districts of the...
Article
Fruit quality is a very important objective because the consumers have increasing demands for high quality plums, where as it depends of the morphological and organoleptic characteristics of the fruit (shape, size, background color and coverage, color and consistency of the pulp, juiciness, taste, flavor, etc.), as well as technological, biochemica...
Article
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The pollen morphology, viability, germination and pollen tube growth of six wide-spread plum genotypes (Prunus domestica), were studied. ‘Toptaste’, ‘Topfive’ and ‘Gras ameliorat’ had the largest pollen grains (>50 μm), whereas ‘Jojo’, ‘Anna Späth’ and ‘Stanley’ cultivars were represented by slightly smaller pollen size (45.28-48.41 μm). Pollen sha...
Article
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Based on the problems facing our contemporary society, it is necessary to identify modern methods and techniques of teaching and learning, adapted to economic and social environment. This will facilitate both assimilation by students more easily of information, practical skills required to integrate more easily into the labor market, but will bring...
Article
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The tree-growing sector is considered to be an important supplier of food and raw material for industry worldwide. Increasingly competitive decisions regarding international investment in orchards depend on business analysis. This study compares three apple orchards situated in Cluj-Napoca, on the Eastern limits of the Transylvanian Plain, Romania....
Article
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Rhagoletis cerasi L. is the main pest of sweet cherry and sour cherry orchards , whose attack may decrease the quality of fruits in a high percentage. The experiment took place in two locations from Cluj-Napoca city. During 2 experimental years we observed the population dynamics of European cherry fruit fly. In the year 2013 adults emergence took...
Article
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There is a growing interest for sustainable agriculture as a response to consumer's health interest. Vermicompost is a product that answers to this demand. Due to the complex chemical composition it can be used both as a fertilizer, and pesticide. The experiment was conducted in laboratory conditions. On infested branches with black cherries aphids...
Article
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Pollen of 16 new sweet cherry cultivars (was collected and investigated microscopically in laboratory for viability and germination capacity. Pollen viability was determinated by applying the colorimetric method, and germination capacity by cultivating pollen on solid medium with 1.5 g agar + 15 g sucrose + 100 ml distilled water. It was noticed th...
Article
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The influence of two apple rootstocks (M9 and MM106) on growth and yielding of four apple cultivars (ʻPinovaʼ‚ ʻTopazʼ, ʻFlorinaʼ and ʻGolden Reindersʻ) in two culture system was studied. The experiment was placed in a commercial orchard at SC Agroindustriala Cluj-Napoca Romania, planted in 2007, during 2012-2104. In the experimental field some gro...
Article
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The response to the attack of Monilinia laxa, Polystigma rubrum and Stigmina carpophila in natural conditions of infection of 13 plum cultivars were evaluated during three years, in a commercial orchard located in North-western of Romania. The studied cultivars were: ‘Topfirst’, ‘Nectarina rosie’, ‘Tuleu timpuriu’, ‘Hangata’, ‘Toptaste’, ‘Tuleu gra...
Article
The response to the attack of Monilinia laxa, Polystigma rubrum and Stigmina carpophila in natural conditions of infection of 13 plum cultivars were evaluated during three years, in a commercial orchard located in North-western of Romania. The studied cultivars were: ‘Topfirst’, ‘Nectarina rosie’, ‘Tuleu timpuriu’, ‘Hangata’, ‘Toptaste’, ‘Tuleu gra...
Article
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The removal of the excess fruit can be done in three stages: in the bud stage, by cuts, in the blossom stage, by chemical treatements and in the period when the fruit start to grow, through chemical treatements or through hand-thinning. In this study, chemical thinning was applied to flowers when 80% were open. The study took place in fruit-growing...
Article
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Chemical thinning consists in spraying the trees with different substances. The intensity of chemical thinning depends on the vigour of the tree, the phenophase in which it is done, the type of solution and its concentration. In this study for the chemical thinning the following products were used: Ethrel, 0.01% in concentration, Cosavet 80 DF, in...
Article
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In order to determine the physico-chemical changes during growth and development of three plum varieties, three species were analyzed (Stanley, Vânăt de Italia and Tuleu Gras) by harvesting the fruits at six different phases of development from the interior and the periphery of the crown. The changes that occurred for the studied samples were the f...
Article
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In the context of the sustainable agriculture, where global technology has reached amazing peaks, the necessity to satisfy the human needs is directly proportional to the human's development and also to the development of the environment in which people live. One of the main problems to which humankind is faceing now and will certainly be confronte...
Article
Rhageletis cerasi (L.) is the most important pest in cherry orchards and it’s attak can affect the quality of fruit on a large percentage (45-100%). The European cherry fruit fly is prezent in all cherry and sweet cherry orchards, therefore monitoring this population is required as an element of integrated protection. The aim of this study is to...
Article
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The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is one of the most destructive pest in cherry and sweet cherry orchards. Because of the low tolerance for damaged fruit on the market and the restrictions from E.U regarding insecticides, new envioramental safe methods begin to be developed. This paper prezents preliminar...
Article
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Although the Faculty of Horticulture from Cluj-Napoca was founded in 1977, the higher education in horticulture has a long and important tradition and history in Transylvania, Romania. It started in 1869, when the Agricultural Institute Cluj, Manastur (today, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca), one of the olde...
Article
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Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) is an important pest in vegetable and ornamental greenhouse crops due their direct damage by feeding and indirect damage by vectoring Tomato Spotted Wilt Virus (TSWV). Also, is very well known that they have an extremely high resistance to a wide range of insecticide. Thus by monitorin...
Book
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A brief description of the Faculty of Horticulture from Cluj-Napoca, Romania (University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca), with the occassion of celebrating 35 years of horticulture higher education (1977-2012).
Article
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The purpose of this paper is to realize a comparative study between the temperature regimes of a green roof and a conventional roof. The experimental system used for monitoring both the classic roof and the green roof, includes 9 digital temperature sensors, a data acquisition board and a PC. The measurements were made between 1 and 14 July 2012. I...
Article
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A study was undertaken on the effectiveness of some fungicides such as wettable sulphur, copper hydroxide, potassium bicarbonate and potassium bicarbonate mixed with potassium silicate against apple scab and apple powdery mildew attack, in the environmental conditions of Cluj-Napoca, Romania. The following cultivars were analyzed ‘Jonathan’, ‘Gala’...
Article
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In Romania, in this rather long period of transition, there are still many fruit tree orchards with old (classical) varieties which do not entirely meet the nowadays market and consumer’s criteria. Since these orchards cannot be replaced overnight, in this study it have observed the main yielding and quality characteristics of several well known ap...
Article
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Five apple cultivars (‘Florina’, ‘Golden Delicious’, ‘Idared’, ‘Jonathan’ and Starkrimson), were tested in 2004 and 2005 in five commercial orchards located in different counties of Transylvania, Romania, with quite nonsimilar environments. In June, young shoots were harvested from each cultivar and taken to the laboratory by means of a refrigerati...
Article
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Most often, when choosing promising genitors for apple breeding programs, their performance stability stands as a major criterion. This means that an increase in speed, accessibility and accuracy of performance stability evaluation will translate into more efficient crossing programs. Five apple cultivars, widely grown in Transylvania ('Golden Deli...
Article
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In the conditions of central Transylvania, Romania, five plum cultivars were studied, with different fruit ripening: earlier (Tuleu timpuriu), semi-earlier (Reine Claude d'Althan), medium (Valor), semi-late (Vinete de Italia), late (Vinete romanesti). Tuleu timpuriu and Reine Claude d'Althan distinguish for their high productivity (over 20 kg of fr...
Article
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In Romania, fruit growing has an old and rich tradition. During the 20th century, the Romanian fruit growing witnessed dramatic changes. The acreage grown with fruit trees was 340,100 ha in 1927, 184,200 ha in 1950, 428,400 ha in 1970 and 239,900 ha in 1999. Total fruit yield varied during this period of time between 401,100 tons in 1950 and 2,183,...
Article
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Experimental results in the past years recommend using potassium bicarbonate like fungicide in preventing and control apple scab and other apple diseases. Experimental field was carried out in 2010 at a commercial orchard of SC Agroindustriala SA Cluj-Napoca, Romania. The trees were planted in 2003 at a distance of 3.5 x 0.9 m. The efficacy of pota...
Article
Full-text available
Experimental results in the past years recommend using potassium bicarbonate like fungicide in preventing and control apple scab and other apple diseases. Field experimental was carried out in 2008 at a commercial orchard of SC Agroindustriala SA Cluj-Napoca. The trees were planted in 2003 at a distance of 3.5 x 0.9 m. The efficacy of potassium bic...
Article
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Phenotypic stability of fruit yield, fruit weight, height and diameter was evaluated in seven plum cultivars across five environments in Transylvania, Romania, in 2006. Friedman's test resulted in values of χ2 for the analyzed characters comprised between 21.4-28.8, much higher than χ2=12.6, for DF=6 suggesting significant differences among the tes...
Article
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Apple fruits content in sugar differ depending on many factors as environmental conditions, technology, climate, cultivars etc. The objective of this study was to determine the sugar content and morphological traits of fruit of different apples cultivars, with summer ('Mollie's Delicious', 'Jersey Mac', 'Nebuta'), autumn ('Frumos de Voinesti', 'Pri...
Article
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Optimizing relationships between growth and fructification processes in apple, in order to obtain high and quality yields every year, is a permanent concern of the fruit research. The relationship between apple trees training systems in "Gala", Pinova"‚ "Topaz" and "Florina" apple cultivars, grafted on M9 rootstocks, in the first 5 years of croppin...
Article
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Incomplete diallel crosses were performed, in 2005, involving for gillyflower cultivars belonging to M. incana species. These cultivars had been previously tested for their homogeneity of distinctive plant characters (flower color, plant height, earliness, persistence of flowering). F 1 hybrids as well as their parental forms were grown in Cluj-Nap...
Article
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The sugar content in apple fruit differs depending on numerous factors: variety, culture technology, pedo-climatic conditions, fruit position in the tree crown etc. The influence of the cultivar and fruit exposition in the tree crown upon their sugar content, as well as upon some morphological traits of the fruit (weight, diameter and volume) at th...

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Project
September 27, 2017: Celebration and scientific conference with contributions published in a special issue of Notulae Botanicae Horti Agrobotanici Cluj-Napoca (ISI "Plant Science") dedicated exclusively for this event!