2022

Permanent URI for this collectionhttps://repository.iuls.ro/handle/20.500.12811/4644

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listelement.badge.access-status Open Access ,
Partial results regarding the behavior of some ornamental varieties of Ipomoea batatas cultivated within the ecological conditions of Iaşi
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Ozarchevici, Alina-Ștefana; Apostol, Maria; Chelariu, Elena-Liliana; Draghia, Lucia
The genus Ipomoea includes annual and perennial species, some of which are cultivated for ornamental purposes. Ipomoea batatas is a perennial species, grown as an annual in unprotected conditions. In this paper, the behavior of four cultivars of I. batatas ('Rusty Red', 'Midnight Lace', 'Light Green' and 'Purple Hearts'), cultivated in the experimental field of the discipline of Floriculture at the Iasi University of Life Sciences, Romania, was evaluated. Observations and determinations made after 35 days of establishment of cultures revealed differences between cultivars in terms of number of leaves/plant, shoots length and leaf size. The highest number of leaves and the longest shoots were recorded on the variety 'Rusty Red', while the variety 'Midnight Lace' stood out for the largest size of the leaves.
listelement.badge.access-status Open Access ,
Observations regarding multiplication on vegetative way of Juniperus horizontalis Mnch. species in Iași County conditions
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Bernardis, Roberto-Renato; Dascălu, Marius; Negrea Pașcu, Roxana; Zlati, Cristina; Cojocariu, Mirela; Poșta, Daniela-Sabina
Within the multitude of dendrological species, Juniperus species are particular importance in green areas and especially in our country's conditions that are generally favorable and very favorable to these species. The aim of the paper is to highlight the potential for vegetative propagation of the most popular species, namely Juniperus horizontalis Mnch., which is found in Iasi county. During the vegetation period, observations were made on the action of rooting biostimulators and the growth rate of cuttings roots by determining the percentage of rooted cuttings, the average length of roots emitted per cuttings and the average number of roots per cut.
listelement.badge.access-status Open Access ,
Evaluation of the correlations between the main quantitative characteristics in the vineyard varieties Aligoté and Fetească Regală
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Simioniuc, Violeta; Sârbu, Tiberiu-Emilian; Gabur, Iulian; Crețu, L.E.; Simioniuc, Dănuț-Petru
In order to start some clonal selection works, the Aligoté and Fetească regală vine varieties from the Research and Development Station for Viticulture Iași have been subjected for several consecutive years, to works to evaluate the variability of the main quantitative characters, namely : number of shoots per stem, number of fertile shoots per stem, percentage of fertile shoots per stem, number of grapes per stem and shoot, weight of grapes per stem and shoot, number of berries per grape, weight of berries per stem and grape, as well as the mass of 100 berries. The present study aimed to determine the existing links between different quantitative characters, by calculating the regression and correlation coefficients.
listelement.badge.access-status Open Access ,
Evaluation of the ameliorative potential of some landraces of garden beans from the Suceava Plant Genetic Resources Bank Collection
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Simioniuc, Violeta; Sârbu, Tiberiu-Emilian; Gabur, Iulian; Crețu, L.E.; Simioniuc, Dănuț-Petru
The research that was the basis of this work aimed to know the variability of some morphological and physiological descriptors of some landraces from the collection of the Suceava Plant Genetic Resources Bank (BRGV). These morphological descriptors relate to plant vigour, number of main branches, leaf colour, flower colour, berry colour, pod size, expressed as length and width, number of pods per plant, number of kernels in pod, berry weight and resistance to factors abiotic stress, in order to identify valuable characters and traits for the breeding process
listelement.badge.access-status Open Access ,
Yield performances of quinoa for leaves under irrigation and fertilization regimes
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Chiriță, Raluca; Teliban, Gabriel-Ciprian; Munteanu, Neculai; Stan, Teodor; Stoleru, Vasile
Quinoa (Chenopodium quinoa sp.) is a pseudo-cereal native to South America, known mainly for seeds. In recent years, studies and research have begun to be done on leaves, as it is known that in the area of origin, some local populations used as vegetables. The aim of the research is to evaluate the effect of fertilization and irrigation on the growth and development of two quinoa varieties (Vikinga and Puno), in order to introduce them on the Romanian economic market. The experience was organized in vegetation pots, in 42 variants, in the greenhouse. The obtained results show that the species is suitable for cultivation in protected areas, under the influence of factors: variety, fertilization and irrigation. The highest amount of leafy mass was obtained by Vikinga variety under biological fertilization irrigated with 75% of water from soil capacity (SC) positively correlated with the leaf area and the number of leaves. The irrigation with a rate of 75 % of the field capacity obtained the best results, compared to the regimes of 50 % and 100 % of the soil capacity.
listelement.badge.access-status Open Access ,
Importance of cabbage (Brassica oleracea) vernalization on seed production: a review
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Bute, A.; Munteanu, Neculai; Brezeanu, Petre-Marian; Brezeanu, Creola; Ambăruș, Silvica; Tremurici Antal, Andreea; Calara, Mariana; Iosob, G.A.; Cristea, Tina-Oana; Teliban, Gabriel-Ciprian
The seed-to-seed method is the most often used process in cabbage seed production. The transition from vegetative phase to generative one requires vernalization in terms of bolting and flowering. Vernalization is a physiological process that converts vegetative meristem tissue to reproductive tissue. It is a natural adaptation that ensures flowering happens only after the exposure to low positive temperatures for an extended period of time, allowing flowers and seeds to mature under normal conditions. The purpose of this research was to present the vernalization demands of Brassicas, the mechanism of vernalization, molecular changes of vernalization, and the factors influencing flowering, such as environmental factors and plant growth regulators, in cabbage seed production.
listelement.badge.access-status Open Access ,
The evolution of climatic conditions between 1989 and 2021 in representative vine areas of Romania
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Zaldea, Gabi; Damian, Doina; Pârcălabu, Liliana; Iliescu, Maria; Enache, Viorica; Tănase, Anamaria; Bosoi, Ionica; Ghiur, Andreea
In order to study the impact of global climate changes on the viticultural ecosystem of the vineyards: Iaşi, Dealu Mare, Târnave, Dealu Bujorului, Murfatlar and Odobeşti a database spanning 33 years (1989 – 2021) was created. This database will be used to optimize the zonation of vine varieties for the expansion of the viticultural areas and the replanting of existing ones. In order to establish the ecoclimatic potential for the viticultural areas, climatic factors for vine culture were analyzed and categorized within favorability classes. Thus, all vineyards were classified in favorability class I for the thermal factor (average annual temperature, average temperature in July, useful heat balance), which indicates an abundance of these resources, with the possibility of obtaining quality white and red wines.
listelement.badge.access-status Open Access ,
The study of the fermental potential of some yeast strains isolated from the Iasi vineyard
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Nechita, Ancuța; Filimon, Vasile-Răzvan; Nechita, Bogdan; Pașa, Rodica; Filimon, Roxana-Mihaela; Zaldea, Gabi
The use of non-Saccharomyces / Saccharomyces cerevisiae starter cultures to reproduce the conditions of natural fermentation in a controlled manner, offers the possibility of improving the aroma profiles of wine and is the basis of strategies for the implementation of new winemaking technologies. In this context, the fermentation potential of the autochthonous strains Torulospora delbrueckii code 10 and Saccharomyces cerevisiae code 4.1.11, 4.3, 4.6 and 4.10 was studied, by inoculation in monoculture, mixed and sequential culture. The obtained results confirm the oenological characteristics of the selected autochthonous yeast strains, as possible basic sources for obtaining new starter cultures.
listelement.badge.access-status Open Access ,
The study of photosynthetic pigments content at some vine for table grapes under the influence of biostimulant substances application
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Ghiur, Andreea-Denisa; Rotaru, Liliana; Filimon, Vasile-Răzvan; Zaldea, Gabi; Nechita, Ancuța; Damian, Doina
Assimilatory photosynthetic pigments (chlorophyll a and b) have an important role in plant growth, in the processes of photosynthesis, oxidation-reduction and fruiting, the variation of these parameters being an indicator of the growth or damage of the leaf apparatus.This study aimes to establish the influence of the application of substances with a biostimulating role on the content of chlorophyll pigments in the leaves of the vine varieties 'Paula', 'Aromat de Iaşi', and 'Chasselas doré'. The treatments were carried out with two organic vine fertilization products, applied in three concentrations 'Ecklomar'® (3.5 L/ha-V1, 4.5 L/ha-V2, 5.5 L/ha -V3) and 'Kaishi'® (2.5 L/ha-V1, 3.5 L/ha-V2, 4.5 L/ha-V3) in different growth phenophases. Following the study were identified differences between the experimental variants in carotenoid content. The highest values were observed on Paula variety with 'Ecklomar'® treatments.
listelement.badge.access-status Open Access ,
The bicentenary of the great scientist - Louis Pasteur
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Vacarciuc, L.; Griza, Ina; Bogatîi, E.
Moving to the East of France, Jura-land, the Pasteurian land, allowed us to get to know up close a hilly area on the border with Switzerland which is very favourable for grapes. The viticulture sector, being developed in Bourgogne since ancient times, has attracted the attention of many scholars and artists. One of them was the great Pasteur, whose Museum-House is located in the small town of Arbois, a large wine-growing center. Throughout the summer and autumn of 2022, under the auspices of the Academy of Sciences and the “Terre de Louis Pasteur” cultural team, events, symposia, festivals, and meetings with scientists are organized to commemorate the bicentennial jubilee. Admirable are the places where the future scientist lived, the local church, the house where he went to school and the laboratory of the great French microbiologist Louis Pasteur (27.12.1822–28.09.1895). Born near Dole (70 km North), his parents bought (in 1830) a four-level house right on the banks of the Cuisance river, where on the 1st and 2nd floors were his residence, the upper 3rd and 4th floors were intended for science. The article reveals the concerns of the scientist in whose laboratories they studied: microbiology, vaccines, hygiene, sanitation, immunity, the process of acquiring table salt from underground water, the biochemistry of fermentation and pasteurization.
listelement.badge.access-status Open Access ,
Testing some production technologies of red grape juice in the Republic of Moldova
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Griza, Ina; Vacarciuc, L.
The process of primary processing of black grapes in viticulture and canning branches aims to mechanize the process of extracting the colour from the whole grapes before the fermentation of the must in order to obtain different types of red juice and red wine. To be solved: simplification of the scheme and the creation of the universal technological line for juice - wine with increased hygienic properties and reduced expenses. The whole grapes received in the bunker-press are treated with 0.2% SO2 solution, hot 550C for 15 minutes, which can be recovered for other batches of raw material. The decontaminated grapes are thermally treated (selectively the skin) for 10-20 minutes with hot must +60-850C, followed by the first cycle of hydraulic (pneumatic) pressing with the separation of the pigmented dietary red must and storage. The rest of the mass in the bunker-press is dosed with potassium pyrosulfite together, dihydroxyfumaric acid and with hot must +600C for 10 minutes for the final extraction: anthocyanin - SBA, cooling it to +250C, pressing the second with the selection of the must fraction and fermentation to make red wine.
listelement.badge.access-status Open Access ,
Research on the pathogenicity of autochthonous entomopathogenic fungi in Trialeurodes vaporariorum Westwood
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Dinu, Mihaela-Monica; Fătu, Ana-Cristina; Băbeanu, Narcisa
Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae) belongs to whitefly species that cause significant damage to crops in protected areas and fields in Romania. Biological control with parasitoids and entomopathogenic fungi is an important alternative for the management of this pest. The susceptibility of the fourth larval stage of T. vaporariorum to 3 different strains of Beauveria sp. (Bals.) Vuill. and one strain of Metarhizium anisopliae (Metsch.) Sorok., isolated from natural outbreaks in Romania, was assessed. Conidial suspensions containing 107CFU/mL were applied directly on old nymphal stages of T. vaporariorum using a fine droplet spray nozzle, in a laboratory trial. The results of this study were compared with those obtained by using the commercial strain B. bassiana ATCC 74040 and they indicate that two autochthonous strains have potential as biological agents for the control of T. vaporariorum.
listelement.badge.access-status Open Access ,
Internal secretory structures in Hypericum patulum - a selection of optic microscopy images
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Simion, Lenuța-Iuliana; Enache, Monica
Hypericum patulum (goldencup Saint John’s wort, fam. Hypericaceae) is an exotic shrub, originated from China, widely cultivated in gardens in temperate regions as ornamental, for its large, golden yellow flowers and thick, green, deciduous or persistent foliage. Similar to Hypericum perforatum (common St. John’s wort), which is a well-known valuable herbal drug, some other Hypericum species also have some unusual internal secretory structures that produce and accumulate many bioactive compunds, thought to have evolved as a plant response to herbivore attack. In the present study the optic microscopy images of Hypericum patulum leaves, flowers and stem show: black nodules (spheroidal dark glands) which are glands that produce and accumulate a granular red to black colored pigment (hypericin) – they were seen in sepals and stem; pedunculate black nodules (glandular emergences) were seen on the margin of the sepals; secretory cavities (spheroidal pale glands or translucent glands) that are almost spherical or a bit elongated found in leaves and sepals, they have a cavity that is bordered by secretory cells that produce oils that diffuse through the cell wall and accumulates within the cavity, they are considered to produce hyperforin and essential oils; secretory canals with large lumen, that are long, tubular structures found in leaves mixed with translucent glands which have the same structure and origin.
listelement.badge.access-status Open Access ,
The importance of green areas in everyday life in the view of first-year students at the Faculty of Food and Animal Sciences
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Chiruță, Ciprian; Sonea, Andromeda-Cristina; Cojocariu, Mirela
The fast pace of development of cities in the last decades has led to an increase in the degree of pollution and implicitly to a lower urban comfort. A viable option to slow down the negative effects of urbanization is to reintroduce green areas to cities. For this approach to be successful, it is important for the young generation to be aware of the benefits of natural and landscaped green spaces in everyday life. A questionnaire about green areas was applied to 88 students from the Faculty of Animal and Food Resources Engineering, to assess their opinion on how green areas, in different forms, can make life healthier and more beautiful. The sample was composed of 62 female and 26 male students who had to answer 15 questions in the questionnaire. Regarding the results of the survey, the presence of parks near home or workplace is highly appreciated by 57% of the respondents and there is an increase in interest among students towards new methods of expanding green spaces, they consider green facades attractive (18%), balconies decorated with plants (15%) and green roofs (11%).
listelement.badge.access-status Open Access ,
Optimization and modeling of Cr (VI) biosorption from aqueous solution on biosorbent - Sarkanda grass lignin
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Ungureanu, Elena; Chelariu, Elena-Liliana; Tofănică, B.I.; Popa, Valentin I.; Jităreanu, Carmenica-Doina
The negativ impact induced by the presence of heavy metals in the environment and on the health of living organisms is accentuated by their long-term persistence, as a result of their low solubility and mobility and in close connection with the sorption and complexation processes. In this study, the bioadsorption of Cr (VI) from aqueous solution onto unmodified Sarkanda Grass lignin was analyzed. Cr (VI) retention was tested at different experimental parameters (pH of initial solution and biosorbent, biosorbent dosage, aqueous solution concentration and contact time), in order to obtain optimal experimental conditions. The experimental results have been interpreted using the classic Langmuir and Freundlich isotherms models, as well as two kinetic models (the Lagergren pseudo-first order and the Ho-McKay pseudo-second order models). The experimental data recommend the unmodified Sarkanda Grass lignin as an efficience biosorbent in the retention of chromium ions from aqueous solution, both in terms of the amount of biosorbent and pollutant species retained, as well as in terms of adsorption time.
listelement.badge.access-status Open Access ,
Pyridazine izomers with biological activity
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Tucaliuc, Roxana-Angela
Isomers are chemical compounds different from each other, with individualized physical and chemical properties. Dimethyl 2-butenoate is a symmetricall substitued alkene, with two isomeric structures: cis (dimethyl maleate) and trans (dimethyl maleate). By the addition reaction of dimethyl 2-butenoate to pyridazine salts, pyridazine isomeric derivatives are obtained. The existence of isomeric structures was proven spectrally. The biological effect of pyridazine isomers was analyzed, through tests, carried out in special chambers with controlled temperature. The results proveded the influence of the tested compounds in the germination process of wheat seeds, in the development and weight of the fresh seedlings.
listelement.badge.access-status Open Access ,
Phenotypic evaluation of some varieties and local populations of dwarf French bean
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Simioniuc, Violeta; Sârbu, Tiberiu-Emilian; Gabur, Iulian; Crețu, L.E.; Simioniuc, Dănuț-Petru
The study aims to know the breeding potential of some varieties and local populations of dwarf french beans. Three varieties with green pods (Cape, Valja and Atlantic), one variety with yellow pods (Galbena de Moldova) and two local populations with pods green, collected from local growers near the city of Iași. At a preliminary multiplication of the seeds and testing of the culinary value of the pods, it was observed that the pods have a culinary value appreciated by consumers, and in the field a rather pronounced variability of some quantitative characters was externalized. Under these conditions, a field experience was carried out, with the aim of being able to evaluate the average values and the variability of the quantitative characters of the tested cultivars, possibly to be able to select some biotypes with breeding value.
listelement.badge.access-status Open Access ,
Evaluation of some tomato cultivars in the greenhouse conditions
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Simioniuc, Violeta; Sulgeru, Bianca-Mihaela; Sârbu, Tiberiu-Emilian; Gabur, Iulian; Simioniuc, Dănuț-Petru
The cultivation of tomatoes in protected areas in the town of Matca in Galați county is already a tradition and ensures, along with the cultivation of other vegetable species, the main income of the growers in the area. Testing the behavior of new tomato hybrids is an activity preceding their cultivation on a larger scale. For this purpose, in 2020, an experiment was carried out in the greenhouse, with five new tomato hybrids, where the following aspects were evaluated: the dynamics of plant height and the number of leaves per plant at 60, 90 and 120 days from planting, average fruit weight and number of fruits per plant, as well as average production per unit area, both by harvest stage and in total. The final results, expressed by the total fruit production per hectare were very good and without significant differences compared to the control (experience average), except for one hybrid, where the fruit production in the second stage of harvesting was very significantly lower compared compared to of the control variant.
listelement.badge.access-status Open Access ,
Collecting and assessment of genetic diversity conserved on farm in Republic of Moldova
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Batîr Rusu, Diana; Mîrzan, Oana
The need to collect plant genetic resources of some crops with importance in a healthy nutrition of the population is of major interest to our institution. The link between agriculture and food security is vital and of strategic importance to any country. In this equation, access and use of a rich genetic background, with known properties, is a condition, almost mandatory, which will allow a quick adaptation to the changes and trends that appear in the agro-food sector. Within this collecting mission, 15 rural communities, with a certain degree of isolation along the Prut River were explored, diversified from the pedoclimatic, altitudinal and agricultural systems point of view. It were targeted individual households of farmers with limited financial resources, who practice a low input agriculture. It were identified traditional varieties of vegetables and it were collected 116 local varieties, comprising 30 species, which will be able to be used in breeding programs or direct cultivation by farmers.All these local landraces with a great genetic variability were collected from local farmers, who prefer and grow them in their gardens due to the multiple uses in food and the adaptation to biotic and abiotic stress factors, in the context of current climate changes.
listelement.badge.access-status Open Access ,
Research on the potential of increasing the number of fruits and the quantity of seeds in eggplant using flowering stimulators
(Editura ”Ion Ionescu de la Brad” Iasi, 2022) Constantin Dascălu, Delia-Cristina; Munteanu, Neculai; Scurtu, I.; Buzatu, Mihaela-Alina
The objective of this paper is to evaluate the potential of some flowering stimulators to improve the quantity of eggplant fruits, but also the quantity of seeds, if the purpose of the culture is the seed production. There were used two varieties of Romanian eggplant, Luiza and Belona, which were treated with four flowering stimulators. The quantity of fruits that reached physiological maturity per plant and per hectare, the weight of fruits per hectare and the weight of seeds per hectare were measured. Some flowering stimulators used for treatments significantly improved fruit yield and seed quantity.

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