2021

Permanent URI for this collectionhttps://repository.iuls.ro/handle/20.500.12811/4567

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Influence of maturation products on chromatic and physical-chemical parameters of Sauvignon Blanc and Busuioacă de Bohotin wines
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Cerbu, Maria-Iulia; Cotea, Valeriu V.; Colibaba, Lucia-Cintia; Călin, Ioana; Niță, R.G.; Tudose Sandu Ville, Ștefan; Zamfir, Cătălin-Ioan; Niculaua, Marius
Ageing of wines on lees involves keeping wines in contact with dying yeast cells for several months/years. Over recent years, ageing of wines on lees is becoming more and more familiar in the wine process and studies are made to analyse its influence on quality. Ageing on lees is a winemaking technique consisting on maintaining the wine after fermentation in contact with the yeast lees to intensify the transfer of compounds between yeast cells and wine during yeast autolysis. Wine ageing on fine lees (essentially dead yeast cells) allows the release from the cell wall of different compounds into wines during yeast autolysis, such as polysaccharides, amino acids, fatty acids and mannoproteins, compounds that interact with the wine and give it texture and complexity. In the present study, the effect of ageing on lees using 12 commercial maturation products was analyzed in white and rosé wines obtained in Iasi vineyard, vintage 2020. The aim of this experiment was to follow the evolution of physical-chemical and chromatic parameters of wines, depending on commercial maturation product used after alcoholic fermentation. The first impression that the consumer receives from wine is colour and it influences the taste. Regarding chromatic parameters, an increase in colour intensity was evident for all samples after the ageing period on lees. The oenological products used for ageing on lees of wines showed a low influence on the physical-chemical characteristics: a low decrease in total acidity for Sauvignon blanc (samples V8S, V1S), a slight increase in total dry extract for the wines obtained from Busuioacă de Bohotin grapes (samples V12B, V2B, V10B and V4B). The results show that this technique offers great prospects for improving the quality of wines.
listelement.badge.access-status Open Access ,
The influence of fertilization regime on perrenial wall-rocket crop in open field
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Teliban, Gabriel-Ciprian; Precupeanu, Cristina; Munteanu, Neculai; Popa, Lorena-Diana; Burducea, Marian; Stan, Teodor; Rădeanu, Georgiana; Cojocaru, Alexandru; Anghelache, D.; Stoleru, Vasile
Perennial wall-rocket (Diplotaxis tenuifolia L.) is a less studied species in Romania. It belongs to the Brassicaceae family, being cultivated for its fresh leaves used in the preparation of salads. In this context, the objective of this study was to evaluate the effects of different type of fertilizers application on productivity indicators of perennial wall-rocket, cultivated in open field. The monofactorial experience was located in the didactic and experimental field of the Vegetables Discipline within the Faculty of Horticulture, U.S.V. Iasi. The experimental variants were represented by the application of different types of fertilizers, as follows: V1= organic (fertilization with vermicompost), V2= chemical (fertilization with Complex 16:16:16), V3= organic (fertilization with Orgevit), V4= microorganisms (Micoseeds MB) and V5= unfertilized. The best results for all the investigated parameters were obtained in the case of the variant treated with chemical fertilizers, followed, in descending order, by the variants fertilized with vermicompost, Orgevit and Micoseeds MB.
listelement.badge.access-status Open Access ,
Study of some quantitative characteristics on a local population of runner bean
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Rădeanu, Georgiana; Munteanu, Neculai; Precupeanu, Cristina; Popa, Lorena-Diana; Mihalache, Gabriela; Teliban, Gabriel-Ciprian; Stoleru, Vasile
Phaseolus coccineus L. is the third most cultivated species of bean, for consumption of grains and immature pods. Despite its agronomic potential, high nutritional value and special economic importance, it is cultivated on a small scale and less studied. The cultivation of this plant in the Romania environment could be a real success by using a special programme to optimize the technology and by cultivating valuable varieties. In this context, the purpose of this paper is to assess the variability of quantitative characters (number of pods per plant, number of beans per plant, mass of beans per plant, number of beans in pods) on a local runner bean population, collected from village Cozia, Iași county. The research was carried out in the experimental vegetable field of Didactic Station of IULS. By the analysis of the results for the four characters, it was observed that it does not fully meet the criteria of distinctiveness, homogeneity and genetic stability, so it is not sufficiently balanced being necessary to continue the selection work, motivated by its high potential of production.
listelement.badge.access-status Open Access ,
Evaluation of some quantitative characters on the common bean cultivar of the "Violetă de Iași", in the choice field
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Precupeanu, Cristina; Munteanu, Neculai; Rădeanu, Georgiana; Teliban, Gabriel-Ciprian; Popa, Lorena-Diana; Mihalache, Gabriela; Stoleru, Vasile
Due to the fact that lately the planet population aspires to a balanced and healthy diet, garden bean has become a popular vegetable for its high content of protein and minerals. The research aimed to evaluate the quantitative variability of the cultivar "Violetă de Iași", a cultivar homologated by I.U.L.S. "Ion Ionescu de la Brad", in 1997. In order to conduct the study, a choice field was established, using seed with high biological value. The experiment was established on the V. Adamachi farm, in 2020. During the vegetation period, the growing practices indicated in the literature were applied, including biological purification. After the individual harvest of the elite plants, the following traits were analysed: "number of pods per plant" (NPP), "number of seeds per plant" (NSP), "weight of seeds per plant" (WSP), "length of pods" (LP). The results showed that the cultivar "Violetă de Iași" suffered a process of genetical degeneration, due to the high variability, resulting in the emergence of two subpopulations for the characters the number of pods per plant and the length of the pods.
listelement.badge.access-status Open Access ,
The current research of garlic in vitro propagation
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Huțanu Tanasă, Carmen-Alina; Munteanu, Neculai; Stan, Teodor; Stoleru, Vasile
Garlic (Allium sativum L.) is a diploid vegetable plant (2n = 16), monocotyledonous, belonging to the Alliaceae family of the genus Allium, being the second most widespread species in its family, after onions. Because garlic does not produce seeds, it is propagated vegetatively by bulbs. The disadvantage of this type of propagation is the transmission of pathogens, viruses and mycoplasmas, with the final result being reduced plant vitality, decreased production and crop quality. In vitro micromultiplication is the method of vegetative propagation with the highest level of propagation through which healthy, disease-free, juvenile plants are obtained. Over time, a lot of research has aimed to streamline this method of multiplication by discovering new disinfectants, new stimulants and diversifying the techniques used. methanol, acetaldehyde. sulphur dioxide, dimethyl dicarbonate, yeasts
listelement.badge.access-status Open Access ,
The lattice structure associated to complete hypergroups
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Sonea, Andromeda-Cristina
According with representation theorem for complete hypergroups, we can determine a relationship between the lattice of subgroups associated with a group and the lattice of subhypergroups associated with complete hypergroups. Also, we present some examples to illustrate this connection.
listelement.badge.access-status Open Access ,
The content of heavy metals in the soils of the state protected natural areas in the South-eastern area of the Republic of Moldova
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Tărîță, A.; Brașoveanu, V.; Jigău, Gheorghe
Heavy metal (HM) content has been assessed in soils within 10 state protected natural areas (SPNA). The soil samples were collected from the soil layer 0-20 which is in direct relation to all biotic (edaphic and bio-indicatory plant organisms, soil microorganisms) and abiotic (atmospheric and wind deposits, physical-chemical processes, etc.) components responsible for the HM circuit within the ecosystems. Evaluated on the basis of the grading scale of soils of the Republic of Moldova, (Кирилюк, 2006), the content of HM (Zn, Cu, Ni, Co) analysed, for the soil layer studied, was included in the categories of very low - high levels. In the evaluated soil layer, no cases of studied HM pollution were recorded. In some cases, however, there are trends in the accumulation of Zn and Cu, but their contents do not exceed the alert threshold (AT) values (tab. 1). Both for APNA and for other terrestrial ecosystems, increased Cu and sometimes Zn content in environmental components are characteristic, as a result of the intensive processing of surrounding agricultural land and forests with phytosanitary products containing Cu and Zn. After Adriano (1986), copper and zinc fall into the category of microelements with a biologically important role for forest ecosystems, deficiencies (<10 mg/kg) or exceed the AT (>100 mg/kg), can cause reduction of root and shoot growth, inhibition of enzymes, risks that in the case of ecosystems investigated are not attested. In the case of the intervention threshold (IT), the studied HM values do not reach these values after Kloke (1980), which excludes the risk of toxicity, in the studied ecosystems, for plants and soil organisms.
listelement.badge.access-status Open Access ,
Research on fungal contamination and total aflatoxin content in some local maize (Zea mays) populations
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Batîr Rusu, Diana; Murariu, Danela; Plăcintă, Domnica-Daniela; Chelariu, Elena-Liliana
Mycotoxins are toxic chemicals produced by fungal species like Aspergillus, Fusarium, Penicillium and Alternaria which could reach into macro-organisms by food and fodder administration. Mycotoxins can reach the human body not only through the consumption of cereals or food prepared from contaminated seeds, but also through the consumption of milk, meat or eggs from animals fed contaminated feed. The paper presents researches carried out in order to establish contamination with potentially toxic fungi of maize, taking into account climatic and storage conditions. It was analyzed, on the one hand an evaluation of epiphytes and endophytes mycological flora that occurs on the seeds, after medium-term storage, and on the other hand a toxicological characterization in order to avoid or reduce the damage caused by the fungal pathogens.This study led to a better understanding of the cause-effect relationship, where the cause is represented by the action of specific micromycetes during the growing period or storage period, and the effect is quantified by the level of viability and seed health according to the duration of conservation, respectively the degree of infection with mycotoxins. The experiments performed represent a special material basis for growers and processors (milling and bakery units), by highlighting the risk factors that determine contamination with toxic fungi and the production of mycotoxins. It is a unanimous requirement to evaluate the quality of cereals intended for human and animal consumption. The results of the study show that prevention of mycotoxins is possible through creation of disease-resistant hybrids and agro technical measures: crop rotation, tillage system, fertilization, choice of varieties and phytosanitary treatments (diseases, pests, weeds, etc.), infestation control with mycotoxins prior to harvesting, ensuring appropriate storage conditions.
listelement.badge.access-status Open Access ,
Ways to rehabilitate facades by using planters
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Negrea Pașcu, Roxana; Zlati, Cristina; Cojocaru, Mirela
In the context of urbanization accentuated in recent decades, there has been an orientation towards paradigms, which will shape human settlements in a sustainable way able to meet the needs of adaptability to climate change, ensuring primarily environmental quality and conservation of species and habitats. In cities, paved or concrete constructions and surfaces create a specific urban climate, with higher temperatures and a restriction of air circulation, which leads to the production of the so-called "heat island" effect. In contrast, vegetation, through the effect of shade and increasing air humidity contributes to creating a more comfortable environment. Hence the use of the phrase "park - cool island". Lately, a compositional concept of capitalization of vegetation is making its presence felt more and more, emphasizing both the aesthetic role and the role of purification and regeneration of the polluted environment. The solution approached by this work are the arrangements on the vertical given the fact that in the urban environment the vegetation has a role not only aesthetic but also sanogenic.
listelement.badge.access-status Open Access ,
The use of plant compositions for areas with a short period of insolation
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Negrea Pașcu, Roxana; Zlati, Cristina; Bernardis, Roberto-Renato
Recent studies in the field of sustainable urban planning focus on the plant component, favoring the implementation and conservation of plant material at the highest possible level of quality and performance. In order to better understand the ideology of using dendrological and flowering plants in areas with low insolation, we resorted to their use in a proposal to arrange a private garden. The paper aims to present the methods of arranging private or public gardens taking into account, at the time of design, the needs and requirements of the beneficiary and also the elaboration of a proposal in case the space that is going to be arranged has atypical characters. Here reference is made to the way of designing spaces in which the degree of sunlight is reduced and involves treating them as spaces with semi-shade or shade. In the foreground of this work is the way we use shade and semi-shade plants and how the spaces that benefit from a low degree of insolation are capitalized and integrated.
listelement.badge.access-status Open Access ,
Ways of enhancing urban perspectives through the use of ornamental vegetal elements in the historical area Târgu Cucu from Iasi
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Dodu, Diana; Dascălu, Doina-Mira
The concept of “Cities for People” 'is promoted by the urban planner Jan Gehl and involves the design of new urban settlements, or the transformation of the existing ones, into environments conducive to daily community activities. Whether we refer to the necessary activities or to the leisure ones, the city has the primary duty to provide favourable frameworks for these various manifestations. Since Antiquity, it has been considered that the city belongs to its people and their lives, this perception becoming in the 21st century an ideological current meant to improve the quality of urban life, through architectural, urban, landscape and artistic interventions. The subject of the quality of urban life has become a leitmotif to recent research in the field of urbanism and social sciences, promoting principles and methods aimed at both terms of impact on the human psychic and the environment. In the context of the urban environment of Iași, affected by the urban transformations of the last century, are suggested landscape interventions that would meet the quality criteria of a healthy public space, transforming the dull area into an attractive and dynamic one.
listelement.badge.access-status Open Access ,
Studies on the phenology of Cotoneaster divaricatus Rehd species, in the conditions of Iasi county
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Bernardis, Roberto-Renato; Sandu, Tatiana; Chelariu, Elena-Liliana; Zlati, Cristina; Negrea Pașcu, Roxana
From the multitude of dendrological species, Cotoneaster genus, with all the species included, is particularly important in garden design, especially that the conditions of our country are generally favorable and very favorable for the growth of these species. The purpose of the paper is to highlight the ornamental potential of the most popular specie of Cotoneaster genus, respectively Cotoneaster divaricatus Rehd. that was studied in the conditions of Iasi county. During the growing season there were made observations and determinations concerning shoots annual growth rate, the growth rhythm of leaves and the number of flowers on the stems.
listelement.badge.access-status Open Access ,
The use of glass in landscaping Elena Doamna square from Iassy
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Grecu, Codrina; Mogîldea, Teodora
This paper presents a brief review of the ways of using glass, a few case studies, and the solution for the redevelopment of a real site in Iasi, all of them with glass as a building material used as the generator of the design concept. fter an analysis of the existing situation of the site proposed for development, the zoning of the site and the images of the proposed solutions for each of the zones are presented, all of them constituting points of interest of the square linked together with a network of alleys connected to the three main access points to the space. The proposed solution can be a model for landscaping a degraded green space
listelement.badge.access-status Open Access ,
Common mistake in the representation in triple orthogonal projection of cylindrical-conical and methods for their elimination
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Prună, L.; Slonovschi, A.
In many elements of street furniture (pergolas, terraces, benches, etc.) the straight cylinder (elliptical or circular) is found as a constructive element. In the execution drawings (plans, main or side views) of these elements, the correct representations in triple orthogonal projection in the clearance of the bodies are necessary. The paper shows the frequent mistakes of the representation in triple orthogonal projection in the shape of the straight cylinder (cylindrical or elliptical that has the base located in various planes (general position, vertical, parallel, or intersecting the OX axis) and propose a solution for avoiding misrepresentations.
listelement.badge.access-status Open Access ,
Building process automatization of the furniture for rest from a garden
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Prună, L.; Slonovschi, A.
Benches are furniture elements from a garden that permit relaxation and resting. They can have various shapes and may be built from different materials. In this paper, the authors present a study referring to the possibility of design automatization of these furniture' elements using the interface named iLogic that is a programming interface included in the Inventor software. In the end, the authors present the conclusions they reached and some recommendations regarding the use of the iLogic interface for benches design.
listelement.badge.access-status Open Access ,
Observations on the flight dynamics of adults of the species “Cydia pomonella L.” under the conditions of 2021 at RSFG Iași
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Turcu, Cristina-Ionela; Tălmaciu, Mihai; Tălmaciu, Nela; Herea, Monica; Chelaru, Simona-Mihaela; Perju, Ionel
The researches regarding the flight dynamics of the pest Cydia Pomonella L. were carried out on the territory of Iași county in Miroslava locality, in an intensive apple plantation and the varieties studied being Florina, Idared and Jonagold. The appearance of the pest Cydia Pomonella L. was followed with the help of pheromone traps of atraPom type, produced by the Institute of Chemical Research, “Raluca Ripan” from Cluj-Napoca. During the year, the pest had 2 complete generations, the first occurrence being reported on May 7. The maximum flight curve of the first generations was reached on May 24, with a flight staggered throughout the vegetation period of the culture, the flight of butterflies being recorded during a number of 123 calendar days. Pest biology has been heavily influenced by climatic conditions.
listelement.badge.access-status Open Access ,
Observations regarding the pests reported in the apple plantations under the RSFG Iași and their phytosanitary protection
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Turcu, Cristina-Ionela; Tălmaciu, Mihai; Tălmaciu, Nela; Herea, Monica; Chelaru, Simona-Mihaela; Perju, Ionel
The observations took place in 2021 in the apple plantations of Research Station for Fruit Growing Iași, (Northeast of Romania), where a complex program of phytosanitary treatments was applied, taking into account the biology and ecology of the pests found in the apple plantations. Varieties on which observations have been made regarding the application and effectiveness of phytosanitary treatments were Idared and Jonagold varieties grafted on rootstock MM106. The climatic conditions of 2021 favored the development of pathogens and pests. Under the conditions of withdrawal of a large number of active substances, the pest control is becoming increasingly difficult, so that in 2021 a number of 11 phytosanitary treatments were applied, the degree of attack of the pest Cydia Pomonella L. being between 2% for the treated variant and 45% for the untreated variant.
listelement.badge.access-status Open Access ,
Observations on the pests spotted in the vineyards and their phytosanitary protection in 2021
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Ștefan, I.A.; Tălmaciu, Mihai; Tălmaciu, Nela; Herea, Monica
The introduction and generalization of the integrated system for the protection of vines is intended to limit the factors leading to the deregulation of natural biological balance. Pesticides, an indispensable component of this system, are a means of combating pathogens and pests in wine-growing. Their efficient use requires integrated management at farm level or even at plot level. A phytosanitary program established at the level of the plot in a demonstration batch shall confirm by the results of the new trends in sustainable viticulture.
listelement.badge.access-status Open Access ,
Flight dynamics of harmful lepidopters to vineyards using the Teraya Fly system
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Ștefan, I.A.; Tălmaciu, Mihai; Tălmaciu, Nela; Herea, Monica
Among the practical applications of synthetic sexpheromones, the most important it is about constant supervision of insect populations for the purpose of forecasting and warning treatments or for their suitability.At present, in our country synthetic pheromones are produced for 33 species of insects of agricultural, horticultural and forestry importance. From their many, the AtraBot-type pheromone specific to the pest Lobesia botrana has been selected, which causes considerable damage to vineyards throughout the growing season. The present paper presents the results on flight dynamics and abundance of Lobesia botrana, a species harmful to red vineyards by means of the intelligent trap type Teraseya Fly. AtraBot, Teraseya Fly, dinamics
listelement.badge.access-status Open Access ,
The dynamic of methanol and acetaldehyde in white wines treated with sulphur dioxide and dimethyl dicarbonate
(Editura ”Ion Ionescu de la Brad” Iasi, 2021) Călin Buțerchi, Ioana; Cotea, Valeriu V.; Colibaba, Lucia-Cintia; Luchian, Camelia-Elena; Cerbu, Maria-Iulia; Zamfir, Cătălin-Ioan; Nechita, Bogdan
Wine structure is very complex, consequently, the latest researches has been focused on the detailed analysis of this beverage. One of the most important compounds that can be found in wines is methanol. The toxicology of methanol and the admissible limits established by OIV, especially the effect on consumer's health, have to be considered. In this sense, the maximum permissible quantity of methanol and changes in its composition in wines must always be discussed. For this study, forty-five samples were obtained from a blend of Fetească regală and Muscat Ottonel grape varieties at the experimental wine cellar of the Oenology Laboratory of the Faculty of Horticulture from Iași. All variants were treated with 6 % SO2 solution (40, 80, 160 mg/L) and dimethyl dicarbonate liquid solution, in various ratios (0, 100, 200 μL/L). Also, in this experiment, yeasts such as Schizosaccharomyces spp. and Brettanomyces spp. were inoculated separately (S-Schizosaccharomyces pombe, B-Brettanomyces bruxellensis) and the evolution of methanol content and acetaldehyde in wines was recorded following the administration of treatments with dimethyl dicarbonate and sulphur dioxide. The main purpose of this research is to evaluate the methanol content in wine samples using a gas chromatography method and the possible transformation in wine composition (methanol concentrations) produced by DMDC. Moreover, an important compound that can be formed in wines due to SO2 presence is acetaldehyde, so, the quantity and the effect on wine composition were discussed. The results show different amounts of methanol and acetaldehyde due to the reactions of the used treatments with specific compounds of wine. The concentration of methanol and acetaldehyde in the studied wine samples are within permitted limit for white wines, 250 mg/L methanol.

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