Annals of the University of Craiova - Agriculture, Montanology, Cadastre Series
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RESULTS REGARDING THE TOLERANCE TO THERMO-HYDRIC STRESS OF SOME POTATO LINES CULTIVATED ON THE SANDY SOILS FROM THE SOUTH OF OLTENIA
Get PDFIn this paper are presented the results regarding the physiological reactions of the 11 potato lines studied, on vegetation phenophases, in order to determine their tolerance to the thermo-hydric stress characteristic of the sandy soils area in the south of Oltenia. During the vegetation period, determinations were made with the LC Pro SD portable device, which focused on active solar radiation in photosynthesis, photosynthesis rate, air temperature, leaf transpiration rate and correlations established between these physiological parameters, specific climatic conditions of 2020 and production of potatoes obtained under these conditions. Between the physiological processes of photosynthesis and foliar transpiration, registered at RDSPCS Dăbuleni, a positive, distinctly significant correlation was established. The lines with higher tolerance to thermo-hydric stress showed an intense assimilation, directly proportional to the intensity of foliar transpiration. Lines L 15-1876 / 7 and L 18-1828 / 6 were noted in this regard. At the opposite pole, the lowest physiological activity was recorded on the lines L 1901/11 and L 1901/6
QUANTIFICATION OF THE ATTACK OF SOME PATHOGENS THAT PRODUCE SPOTS ON SOME FLORICAL AND ORNAMENTAL PLANTS FROM DIFFERENT GREEN SPACES OF CRAIOVA MUNICIPALITY
Get PDFResearch on the pathogen attack`s which cause diseases called spots, was undertaken in the green area of Craiova, on the assortment of flowering and ornamental plants and aimed to quantify the spectrum of fungal pathogens in the climatic conditions of 2019.On the 13 host plants, the characteristic attack of a number of 15 fungal pathogens that caused spots produced by fungi of the genera: Diplocarpon, Sphaceloma, Phyllosticta, Lasiobotrys Clodosporium, Alternaria, Septoria, Cercosporia, Blumeriella and Venturia was reported.The notes on the frequency and intensity of the attack, in order to calculate the degree of attack were made for each host plant and pathogen together with the diseases signaling.The degree of attack values for the 15 pathogens that produce spots on the 13 host plants ranged from 0.03% (Phyllosticta magnoliae Sacc.) and 7.1% (Diplocarpon rosae)
CONSIDERATIONS REGARDING THE IMPORTANCE OF THE SORTING OPERATION OF FRUITS AND VEGETABLES
Get PDFFor the normal development of daily activity and maintaining health, the body needs a certain amount of energy and complete nutritional factors (proteins, carbohydrates, lipids, vitamins, minerals, water). They are obtained from food, fruits and vegetables occupying a prominent place as a natural source of carbohydrates, alkalizing mineral salts, vitamins and water. Conditioning involves a set of operations aimed at bringing the products to the characteristics provided by standards, specific to a certain direction of capitalization. This article describes the operations included in the conditioning process, the role and importance of presorting and sorting fruits and vegetables, as well as equipment for these operations
THE USE OF DRONES IN MODERN AGRICULTURE
Get PDFDrones are largely associated with military, industrial and other specialized operations, but with recent developments in sensors and information technology over the past two decades, the scope of drones has been expanded to other areas, such as agriculture. This approach to agricultural management is based on the observation, measurement and measurement of real-time data on crops and animals. It removes the need for assumptions in modern agriculture and instead gives farmers the ability to maximize their yields while increasing crop production. This paper presents a brief summary of drone implementation in agriculture
RESEARCHES REGARDING THE ENTOMOFAUNA OF COCCINELLIDAE (COLEOPTERA-COCCINELLIDAE) FROM THE MAIZE CROP FROM THE NORTH-EAST PART OF MOLDAVIA
Get PDFThe purpose of this research is that to identify the useful entomofauna of Coccinellidae (Coleoptera-Coccinellidae) within the maize crop that has been taken into this study. The researches were carried out within Adamachi station which belongs to University of Appled Sciences of Iasi, Romania. The biological material was sampled by the mean of Barber soil traps from June 3rd of 2017 until July 9th. In total, 7 samples were made. Five traps were placed in a row. In order to prevent the maceration of insects, a conservative liquid was used: water+washing powder in a proportion of 16%. After finishing the experiments within the field, the insects were brought into the Laboratory of Entomology, in order to be counted and identified. From the Coccinellidae family, the most dominant species were:Â Coccinella septempunctata (63 samples); Adalia bipunctata (28 samples) and Propylaea quatordecimpunctata (25 samples)
THE EVOLUTION OF AGRICULTURAL SURFACES, BY USE CATEGORIES, IN THE SW AND NW REGIONS OF ROMANIA
Get PDFThe paper analyzes the evolution after 1990 of the areas occupied by categories of agricultural use, in the NW and SW development regions of Romania. The areas occupied by agricultural land had similar evolutions, with some small exceptions, due primarily to the predominant landforms in the two analyzed development regions. The data are incomplete, waiting for the conclusion of the National Cadastre and Land Book Program 2015-2023
STUDY ON THE CONVERSION OF A CONVENTIONAL TRACTOR INTO AN ELECTRIC TRACTOR
Get PDFThe paper presents the study on how a classic tractor with internal combustion engine can be modified so that it is powered by a battery-powered electric motor. The article presents equipment and components with which a tractor can be modified so that it can run on electricity. In general, an electric tractor consists of the chassis from which the heat engine, electric motor, battery, control and configuration equipment, software used and communication equipment, of the electronic systems on board the tractor are removed
STUDY OF SOME PEDOLCLIMATIC FACTORS THAT CHARACTERIZE THE VITICULTURAL AREA OF SAMBURESTI
Get PDFIn this paper are presented aspects from a geological point of view regarding the territory of Samburesti commune, which has a sedimentary cover with lithology and varying thickness; the upper part of this blanket, of molasses nature, corresponds to the Neogene and Quaternary and thickens in the orogenous contact area - the platform, presenting a series of oil structures
EXPERIMENTAL MEASUREMENTS FOR THE ANALYSIS OF POLLUTANT EMISSIONS IN THE PROCESS OF OBTAINING COMPOUND FEED FOR RABBITS
Get PDFThe rapid increase in the world's population and lifestyle changes have led to an increased demand for animal products and a diversification of people's food needs. The technological flow from the compound feed factories involves the grinding of cereal grains, granulation, homogenization and cooling of the granules. These operations determine the use of steam jets at high temperatures and elimination of various substances or particles in air. The experimental measurements followed the noxes values eliminated in air, to comply the European norms regarding the quality of the environment. The results presented in this article highlight the reliability of work installations from a compound feed factory. Also it is accentuated the advantages offered by the use of highperformance work equipment, with a high degree of automation and computerizatio
MONITORING THE ATTACK PRODUCED BY THE SPECIES CAMERARIA OHRIDELLA DESCHKA-DIMIĆ IN CRAIOVA AREA
Get PDFCameraria ohridella Deschka-Dimić is an invasive, monophagous species, extremely dangerous for the ornamental chestnut trees.Following the observations we made, it can be concluded that the southern exhibition is preferred by the larvae of the species Cameraria ohridella Deschka-Dimić, so for observation made in July 2019 the values were 3.6 mines/leaf and 8.7 mines/leaf in August, and this year it was 3.9 mines/leaf for July, reaching 8.9 mines/leaf in August, an indicator that increased rapidly over the time between the two observations and  followed by the leaves with eastern exposure and western.We also noticed that the lowest values of the average number of mines/leaf/foliole were reached on the leaves with northern exposure