- Research Article
- 10.47068/ctns.2024.v13i26.003
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Hasah Pinar + 1 more
The aim of present study; determination of the salt tolerance of annual grass cultivars in vivo pot experiment. In the study, 25 registered grass varieties were used as material. Salt concentrations of 150 mM NaCl were applied to determine the response of annual grass varieties to salt stress. Root length, shoot length, root-shoot fresh weight and root-shoot dry weight were examined in vivo pot experiment. In the characteristics examined in the pot experiments, two stages were examined: first cutting and second cutting and plant height, shoot fresh weight and shoot dry weight values were examined in salt and control applications. In terms of these examined characteristics, the lowest value in the first cutting control group was obtained from Quickston and Vallivert varieties, while the highest value was obtained from Rambo, Tetra and Ration varieties. Again, in the first form salt application, the lowest value was obtained from Quickston and Vallivert varieties, while the highest value was obtained from Devis, Baqueno and Hellen varieties. In the second cutting control group, the lowest value was obtained from Quickston, Venus varieties, while the highest value was obtained from Rambo, Baqueno, Vallivert varieties. Again, in the second form salt application group, the lowest value was obtained from Kartetra, Quickston, Efe varieties, and the highest value was obtained from Teanna, Jako, Master varieties. As the result of present study, the obtained variation among the annual grass varieties used in the study can be used both in the grass application and in breeding programs.
- Research Article
- 10.47068/ctns.2024.v13i26.005
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Beyza Ciftci + 1 more
Kidney bean, known for its valuable vegetable proteins, holds a significant place among leguminous plants due to its high protein content, as well as carbohydrates, vitamins, minerals, phenolic compounds, and antioxidant contents. Among leguminous plants identified as the most fundamental food for human consumption worldwide, kidney bean stands out not only for its rich nutritional content but also for significantly improving soil fertility, promoting advantageous dietary and health trends. The study aims to compare 15 different kidney bean genotypes in terms of total phenolics, total flavonoids, tannins, and antioxidant activities. Among the genotypes, genotype A4 has the highest content of total phenolic substance (572.09 mg GAE/g), total flavonoid substance (49.37 mg CE/g), DPPH (92.14%), ABTS (14.26 µg TE/g), total hydrolyzable tannin (8.94 mg/kg), and ferric reducing antioxidant activity (10.55 mg AAE/g), while genotype A7 has the lowest value in terms of total phenolic substance (153.01 mg GAE/g), DPPH (28.92%), condensed tannin (102.86 mg/kg), ferric reducing antioxidant activity (3.87 mg AAE/g), and ABTS (4.71 µg TE/g).The study concludes that the different colors of the identified genotypes lead to significant differences in phenolic and antioxidant contents.
- Research Article
1
- 10.47068/ctns.2024.v13i26.002
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Onur Okumuş + 4 more
Maize (Zea mays L) is an important cereal widely used in human and animal nutrition. This study aimed to determine the grain yield, yield components and quality characteristics of some maize cultivars. The study was conducted in Erciyes University Agricultural Research and Application Centre experimental field in 2019, according to the randomized block design with 3 replications. 928 HP F1, DKC 7240, Hiva F1, Kerbanis, Kilowatt, Klosseus, Kontigos, NK Vitorino, Simpatico, Sy Antex, Sy Dracma and Sy Inove maize cultivars were used as material. According to the results of analysis of variance, the differences among the cultivars in terms of ear diameters, ear weight, number of kernels per ear were found statistically significant at 1% level, while the differences in ear length, kernel weight in ear, thousand kernel weight, grain yield and seed protein content were found statistically significant at 5% level. As a result of the research, ear length varied between 18.89 cm (Simpatico) and 21.64 cm (Kilowatt), ear diameters between 44.05 mm (Simpatico) and 53 mm (DKC 7240), number of kernels per ear between 579.5 (Simpatico) and 710.43 (928 HP F1), kernel weight in ear between 164.43 g (Simpatico) and 248.13 g (Kontigos), ear weight between 28. 92 g (Simpatico) and 63.87 g (Klosseus), grain yield between 1174.38 kg/da (Simpatico) and 1772.17 kg/da (Kontigos), 1000-kernel weight between 272.85 g (Simpatico) and 331.91 g (Hiva F1), and seed protein content between 6.02% (Sy Dracma) and 7.71% (Simpatico).
- Research Article
1
- 10.47068/ctns.2024.v13i26.007
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Andreea Stan + 1 more
Studies show that perfectionism is associated with academic performance, because people with a high level of perfectionism study more, they are rather intrinsically motivated and have higher performance standards. However, certain dimensions of perfectionism and an excessively high level are associated with low well-being, emotional exhaustion and frustration when the results are not the desired ones. This study aimed to assess the relationship between perfectionism, wellbeing and academic performance in students. Perfectionism was assessed using a shortened version of the Frost et al. Multidimensional Perfectionism Scale (F-MPS-Brief) (Burgess, Frost, & DiBartolo, 2016), and a shortened version of the Psychological Wellbeing Scale (Ryff & Keyes, 1995) was used to identify students' level of wellbeing. Students reported their academic performance in their last semester of study. Participants in this study included 362 Romanian students from different academic majors and with different degrees. The results revealed significant correlations between dimensions of perfectionism, wellbeing and academic performances Our findings extend the current understanding of the relationship between students’ perfectionism, wellbeing and academic performance.
- Research Article
- 10.47068/ctns.2024.v13i26.019
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Ovidiu Daniel Neagoe + 2 more
Global warming and climate change represent current topics that are approached in many articles, conferences, agreements, etc. Even though the terms ”global warming” and ”climate change” are sometimes used as synonyms, global warming refers to the long-term warming of the planet and represents only one aspect of climate change. The extreme weather - heat waves, storms, droughts, and floods - that was observed in the last period all over the world is considered to be the result of climate change. The opinions regarding this subject are different; therefore there appear to be arguments: some believe that global warming is a natural process while others think that it`s the result of human activity, especially the burning of fossil fuels, which led to CO2 incresead concentration. Each of them has their own perspectives and motivations and attempts convincing public opinion through mass media and social media platforms. Contradiction itself is the main "tool of human evolution", so this dispute should be seen as a step forward in discovering in detail what changes our planet is undergoing.
- Research Article
- 10.47068/ctns.2024.v13i26.018
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Marian Robert Gheorghe + 1 more
Wheat is one of the most important cultivated plants of major importance in the food industry. Bread is obtained from its grains, which is a staple food for the world's population, as it provides many nutrients, being a rich source of carbohydrates, proteins and vitamins. The aim of this work was to compare the wheat line A4-10, obtained at the Agricultural Research Development Station Albota with 24 wheat genotypes, which are in the national list of varieties, in the pedoclimatic conditions of the station, in order to obtain a winter wheat variety with superior qualities. Winter wheat, of all cereals, has the longest growing season, covering all seasons, climatic conditions differ from one season to another. That is why the morphological characters of the A4-10 line, obtained in the crop year 2002, were analyzed, compared to the 24 varieties and lines, namely: plant height, length of spikelets, number of spikelets, number of grains in the spikelet, weight and production.
- Research Article
- 10.47068/ctns.2024.v13i26.009
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Daniela Barbuceanu
Cimex lectularius is an ectoparasitic species with a cosmopolitan distribution adapted to a temporarily obligate hematophagous lifestyle. Common presence throughout the world until the beginning of the 1950s, the bed bug has no longer been reported in the following decades as a result of its populations being managed with DDT, Romania becoming the largest producer of this insecticide at the European level. If the first reports regarding the recent return of the species in Europe date back to the end of the 90s, the reports are more recent in Romania. An analysis of the YouTube platform regarding bed bugs in our country revealed the first record in 2013. In Pitesti, the species was recorded for the first time in 2019, with an increase in the number of infestation cases in recent years. The increase of tourism and international trade, the main factors favouring the spread of the species, call for new measures necessary to prevent and control the spread of the bed bug, and ensure public health.
- Research Article
- 10.47068/ctns.2024.v13i26.008
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Maria Denisa Conete
The lizards of the fam. Scincidae are represented by a single species over most of South East Europe. The Snake-eyed Skink is one of the smallest lizards in Europe with a relatively secretive lifestyle. Regarding the distribution of this species, the Snake-eyed Skink - Ablepharus kitaibelii (Bibron & Bory de Saint-Vincent, 1833) has not been reported so far in the north of Olt County. It is the first recording in this area. This research indicates for the first time two populations of Ablepharus kitaibelii situated in the commune of Bărăști, in an area where the species was not previously documented. This commune is located in the north of Olt county, 50 km away from the municipality of Slatina, county residence. Bărăști commune is situated in the hilly region with an altitude of up to 318 m, part of the territory between the Cotmeana and Vedea rivers, known as the Cotmeana Platform, on the line Drăgășani-Spineni-Mârghia-Pitești, which makes the transition between hill and plain. The Snake-eyed Skink is considered threatened in Romania. This rare species with a restricted and fragmented distribution is present in Annex IV of the Habitats Directive, the local protection of this species being necessary through special conservation measures, such as: stopping deforestation, stopping the expansion of agricultural or residential areas in the researched area, controlling intensive grazing (there being several sheep and goat pens in the area), replacement of False Acacia and Pine plantations with Oak, supervision of stray cats and dogs, etc.
- Research Article
1
- 10.47068/ctns.2024.v13i26.014
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Maceseanu Daniela Mihaela + 1 more
Invasive allochtone species cause the degradation of the natural habitats they invade through the negative impact they have on native plant communities, which they tend to alter, even replace, through their increased competitiveness and their high potential for reproduction and spread. The main objective of the study was to identify and evaluate the spread potential of allochtone invasive species observed in some habitats of European interest in the Pesceana river basin (Vâlcea county), starting from the quantitative evaluation of their populations within the plant associations specific to different types of habitats. The assessment of invasive species was carried out by determining the number of individuals and assessing the percentage abundance-dominance of these species in relation to the total abundance-dominance of the species in the plant associations specific to the different types of analyzed habitats. Observations were carried out in the following types of habitats affected by different allochtone invasive plants: habitat 91M0 Pannonian-Balkanic turkey oak-sessile oak forests; habitat 9130 Asperulo-Fagetum beech forests; habitat 91Y0 Dacian oak & hornbeam forests; habitat 9170 Galio-Carpinetum oak-hornbeam forests; priority habitat 91E0* Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae); habitat 6430 Hydrophilous tall herb fringe communities of plains and of the montane to alpine levels and habitat 3150 Natural eutrophic lakes with Magnopotamion or Hydrocharition – type vegetation. The primary factor that significantly contributed to the introduction and rapid spread of these plant species in the analyzed habitats was zoo-anthropogenic. Among the invasive plant species that affect the floristic composition of the plant associations in the assessed habitats, the most frequent were: Erigeron canadensis, Ambrosia artemisiifolia, Robinia pseudoacacia, Erigeron annuus subsp. strigosus, Xanthium orientale subsp. italicum, Elodea nuttallii and Ailanthus altissima, all being classified as neophytes. Interpretation of the field date showed that the most affected types of habitats were 91E0* and 6430 and the most affected plant associations, depending on the share of invasive plant species, were Aegopodio podagrariae-Alnetum glutinosae Karpati et Jurko 1964, respectively Scirpetum sylvatici Ralski 1931 em. Schweich. In the case of the association Aegopodio podagrariae-Alnetum glutinosae Karpati et Jurko 1964, the percentage values of the abundance-dominance of the invasive species are very high compared to the value of the total abundance-dominance of the component species, which denotes a high degree of damage and the high potential of dissemination to the associations adjoining plants and to other similar types of habitats.
- Research Article
2
- 10.47068/ctns.2024.v13i26.021
- Dec 31, 2024
- CURRENT TRENDS IN NATURAL SCIENCES
- Ionuț Cristian Rusu + 2 more
Oyster mushrooms are highly popular and farmed extensively given their culinary and therapeutic properties alongside their development versatility on a broad assortment of substrate materials. Many biologically active compounds produced by this macromycetes have been found to be important in forestall and therapy of some medical conditions. Structural polysaccharides like glucans, phenolic compounds, tocopherols, triterpenes are noteworthy biocompounds produced by these mushrooms that have numerous health benefits acting as immunomodulator, antitumoral, antioxidant, hypocholesterolemic, antiviral and antibacterial factors. The current study attempted to explore the production yields of some Pleurotus spp. strains in relation to various technological methods and different nutritive supports that consisted of several industrial left overs. Two granular spawn variations were obtained from solid (SISS) and liquid (LISS) inoculum, while the third thechnological spawn was constituted by liquid spawn (LS) derived from liquid inoculum. Vegetal resources including winery pomace, brewery spent grains, corn cobs, coffee grinds and fruits scraps have been examined.