The influence of some sowing technology parameters on winter wheat in Banat Plain

The two years experience was organized at the Didactic Facility of Banat’s University of Agricultural Sciences and Veterinary Medicine of Timişoara. The research objectives are determining the influence of sowing period, row distance and sowing density on the winter wheat yield, the variety used in the study being Alex, a variety representative for the Western Romania. The experimental plots were laid down after the subdivision of plots using three replications, under the climatic conditions of Timişoara. We monitored four sowing periods, three row distances and four sowing densities. In the experimental plots the technology applied was the classic one. The forecrop was corn. Wheat (Triticum aestivum ssp. vulgare L, var. erythrospermum) ensures approximately 35-45% of the world food necessity, specifically being used for producing bread and other flour products, as well as for domestic animal feeding. Thus, obtaining a high productivity is very important. The average data obtained after two years indicate that the first period of sowing, 1-15 October, registered the best results in both years by experience, followed by the variant sown during 15 - 30 October. Periods three and four resulted in significant yield losses. The row distance of the best results was the control, followed by sowing at a row distance of 25 cm with a drop by over 80 kg/ha. The variant sown by scattering registered in both years losses by approximately 1500 kg/ha. Sowing density resulted in constant increases in the yield, from the control variant with a density of 400 seeds/m2 , to 700 seeds/m2 increases were statistically significant

Research on the behavior of certain oilseed rape varieties in Gătaia area

The study monitored the behavior of some rapeseed varieties in terms of oilseed rape yield and for their introduction in the culture. The study was conducted over a period of three years 2008-2010, in the Gătaia area of Timis county. For testing five varieties of oilseed rape (Alaska, Attila, Triangle, Digger, Milena) were selected .The soil of the experimental field was a vertic-preluvosol, medium clay loam/loam clay on medium fine clays. In the first year of experimentation (2008), the smallest oilseed rape yields have been recorded due to important deviations in this area. Under these conditions the oilseed rape yield ranged between 569 kg/ha and 732 kg/ha. The oilseed rape yield level of the second year of study (2009) ranged between 984 kg/ha and 1142 kg/ha, slightly higher than the previous year. In 2008 the highest oilseed rape yield of 732 kg/ha was obtained from variety Milena, followed by Alaska with a yield of 640 kg/ha, while the lowest oil-seed rape yield (569 kg/ha) was obtained from the variety Digger. In 2009 the highest oilseed rape yield (1149 kg/ha) was obtained from the variety Triangle, and the lowest oil-seed rape crop (984 kg / ha) was obtained from variety Alaska. Research results show that by the introduction of the most suitable varieties in the culture, respecting the fertilizer recovering capacity of the varieties at the determination of the fertilization conditions and respecting the zonal optimum planting period, rape is a crop with real opportunities for expansion in the reference areas

Drought and heat effect on growth rate of some maize consanguine lines and hybrids created at A.R.D.S. Lovrin

Recently, the climate conditions in the Banat area, in terms of thermal and hydric regime, underwent significant changes, even dramatic in 2017. The lack of rainfall and the very high temperatures this summer have significantly affected the growth, development and fructification of maize in this area. When the atmospheric heat rises above the pedological drought, maize culture is almost compromised, reaching very high production losses, even over 40-50%. This study relates to the ability to adapt parental forms and hybrids obtained from them. From the results it can be noticed that the thermal regime affects only the blooming and silk fenofase and the rainfall regime influences the first stages of growth affecting the parental forms more intensely, in some hybrids there is observed a uniformity of the height with that of one of the parental forms

Tehnică alternativă de cosmetizare a grupului de dinți frontal superior (studiu pilot)

Background. A current topic in aesthetic dentistry is the cosmeticisation of aesthetic issues of the upper frontal teeth. Numerous solutions and methods have been proposed in this regard, exhibiting varying efficacy and prognosis while being inapplicable for every single clinical situation. Objective of the study. To develop an alternative technique for the cosmeticisation of the upper frontal dento-gingival composition in patients with aesthetic complaints. Material and Methods. The technique was developed on dental models, recreating the similarity in appearance and chromatic concordance of homologous teeth (shade guide, shade map). It was applied by direct technique (composites) in 16 patients with aesthetic complaints, assessing their self-perception of orofacial aesthetics (OES questionnaire) pre- (T1) and post-treatment (T2). Results. The impact of using the proposed technique in aesthetic rehabilitation was positively evaluated by the patients, with the following statistically significant improvements (p<0.01) in the the mean of the OES questionnaire items (T2 vs. T1): facial appearance from the frontal view (+15.7%), tooth alignment (+10.9%), tooth contour (+21.2%), tooth color (+26.7%), overall impression (+23.6%), total score (+30.4%). Conclusion. The proposed technique has demonstrated viability in cosmeticising aesthetic complaints of the upper frontal group of teeth, with potential for expansion and adaptation for complex clinical situations.Introducere. În stomatologia estetică este actuală cosmetizarea problemelor estetice la nivel de grup frontal superior, fiind propuse numeroase scheme și metode, însă cu eficacitate, pronostic variabil și neaplicabile pentru fiecare situație clinică. Scopul lucrării. Elaborarea unei tehnici alternative de cosmetizare a compoziției dento-gingivale frontale superioare la pacienții cu acuze estetice. Material și Metode. Tehnica a fost dezvoltată pe modele dentare, recreându- se similitudinea aspectului și concordanța cromatică a dinților omologi (cheia de culori, harta cromatică). La 16 pacienți cu acuze estetice, s-a aplicat tehnica prin metoda directă (compozite), cu evaluarea autopercepției esteticii orofaciale (chestionarul OES) pre- (T1) și post-tratament (T2). Rezultate. Impactul utilizării tehnicii propuse în reabilitarea estetică a fost evaluată pozitiv de către pacienți, fiind atestate următoarele ameliorări statistic semnificative (p<0.01) ale mediei itemilor chestionarului OES (T2 vs. T1): aspectul feței în plan frontal (+15.7 %), alinierea dinților (+10.9%), conturul dinților (+21.2%), culoarea (26.7%), impresia generală (+23.6%), scor total (+30.4%). Concluzii. Tehnica propusă a demonstrat viabilitatea în cosmetizarea acuzelor estetice a grupului frontal superior de dinți, având un potențial de extindere și adaptare pentru situații clinice complexe

ALTERNATIVE TECHNIQUE FOR THE COSMETICISATION OF THE UPPER FRONTAL TOOTH GROUP (PILOT STUDY)

Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”, Chişinău, Republica MoldovaIntroducere. În stomatologia estetică este actuală cosmetizarea problemelor estetice la nivel de grup frontal superior, fiind propuse numeroase scheme și metode, însă cu eficacitate, pronostic variabil și neaplicabile pentru fiecare situație clinică. Scopul lucrării. Elaborarea unei tehnici alternative de cosmetizare a compoziției dento-gingivale frontale superioare la pacienții cu acuze estetice. Material și Metode. Tehnica a fost dezvoltată pe modele dentare, recreându-se similitudinea aspectului și concordanța cromatică a dinților omologi (cheia de culori, harta cromatică). La 16 pacienți cu acuze estetice, s-a aplicat tehnica prin metoda directă (compozite), cu evaluarea autopercepției esteticii orofaciale (chestionarul OES) pre- (T1) și post-tratament (T2). Rezultate. Impactul utilizării tehnicii propuse în reabilitarea estetică a fost evaluată pozitiv de către pacienți, fiind atestate următoarele ameliorări statistic semnificative (p<0.01) ale mediei itemilor chestionarului OES (T2 vs. T1): aspectul feței în plan frontal (+15.7 %), alinierea dinților (+10.9%), conturul dinților (+21.2%), culoarea (26.7%), impresia generală (+23.6%), scor total (+30.4%). Concluzii. Tehnica propusă a demonstrat viabilitatea în cosmetizarea acuzelor estetice a grupului frontal superior de dinți, având un potențial de extindere și adaptare pentru situații clinice complexe.Background. A current topic in aesthetic dentistry is the cosmeticisation of aesthetic issues of the upper frontal teeth. Numerous solutions and methods have been proposed in this regard, exhibiting varying efficacy and prognosis while being inapplicable for every single clinical situation. Objective of the study. To develop an alternative technique for the cosmeticisation of the upper frontal dento-gingival composition in patients with aesthetic complaints. Material and Methods. The technique was developed on dental models, recreating the similarity in appearance and chromatic concordance of homologous teeth (shade guide, shade map). It was applied by direct technique (composites) in 16 patients with aesthetic complaints, assessing their self-perception of orofacial aesthetics (OES questionnaire) pre- (T1) and post-treatment (T2). Results. The impact of using the proposed technique in aesthetic rehabilitation was positively evaluated by the patients, with the following statistically significant improvements (p<0.01) in the the mean of the OES questionnaire items (T2 vs. T1): facial appearance from the frontal view (+15.7%), tooth alignment (+10.9%), tooth contour (+21.2%), tooth color (+26.7%), overall impression (+23.6%), total score (+30.4%). Conclusion. The proposed technique has demonstrated viability in cosmeticising aesthetic complaints of the upper frontal group of teeth, with potential for expansion and adaptation for complex clinical situations

Production dimension and potential of permanent grasslands of Romania in relation to animals growth

Permanent grassland is part of the national land heritage, the destination of which can never be changed. The current surface of Romania's permanent grasslands is estimated at 4.81 million hectares, representing 20% of the country's surface area and 34% of the agricultural area, surface that increased by 9% compared to 1990. Romania's permanent grasslands are found in all the altitude zones, from the Black Sea shore to the alpine peaks, being permanently under the influence of the natural factors of these areas (soil, slope, altitude, exposition, etc.), resulting in a decrease in the degree of use of the resulting phytomass as animal feed. Thus, it is estimated that out of the total area of grassland about 17% (780 thousand hectares) are affected by natural limiting factors. Bovines are found in 50% in the plain area, 30% in the hill area and 20% in the mountain area. Sheep and goats are found in the highest proportion in the hill area (40%), followed by the plain and mountain areas by 30%. In the current situation of the distribution of ruminant animals, on relief areas, except for hill and mountain meadows where there is a green mass overflow in these areas, the largest green mass deficit is found in the plains (75%)

Productivity and conversion of sown grasslands in the plains area of Banat

The sown meadows, consisting of complex mixtures of grassland grasses and legumes species ensure a high level of production, a high quality of feed, an important source of biological nitrogen, which ensures the protein autonomy of the forage system. The paper highlights the influence of the structure of some perennial grasses and legumes, sown in the plains area, on the production of plant dry matter, on the use of the sown grassland, on the conversion into animal products and on the economic efficiency of the pratoecosystem in relation to animals. Carried out studies have shown that sown grasslands, consisting of a complex mixture (Lolium perenne 30 % + Festuca pratensis 30 % + Trifolium repens 20 % + Lotus corniculatus 20 %), in the plains area, used for grazing with sheep, obtains, in average, about 9 t/ha feed dry matter, over 3200 l/ha milk production and very high milk quality (5.5 % protein and 8.0 % fat). The research results showed an increase of sheep’s milk production in complex mixtures in both years of experience, compared to the mixture variant consisting only of grass species. The value of the quality indices of sheep's milk is higher, both in protein and fat, in the grazed variant, sown with a complex mixture of grasses and legumes, compared to the variant sown with only a mixture of grass species. In livestock farms, the complex sown grassland, consisting of several species of grassland grasses and legumes (multispecies) secures and makes the fodder system more efficient, ensuring both the constant increase of the feed value of the fodder and the increase of the quality indices of the animal products

Modification of Cotton and Leather Surfaces Using Cold Atmospheric Pressure Plasma and TiO₂-SiO₂-Reduced Graphene Oxide Nanopowders

Surface modification of textile fabrics and leathers is very versatile and allows the products quality improvement. In this work, cotton and leather substrates were pre-treated with cold atmospheric pressure plasma (CAPP) and further coated with TiO2-SiO2-reduced graphene oxide composites in dispersion form. By using a Taguchi scheme, this research evaluated the effect of three significant parameters, i.e., the pre-treatment with CAPP, organic dispersion coating and TiO2-SiO2-reduced graphene oxide (TS/GR) composites, that may affect the morpho-structural properties and photocatalytic activity of modified cotton and leather surfaces. The characteristics of cotton/leather surfaces were evaluated by morphological, structural, optical and self-cleaning ability using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX), X-ray powder diffraction (XRD), attenuated total reflection–Fourier Transform Infrared spectroscopy (ATR-FTIR) and UV–Vis spectroscopy. The self-cleaning performance of the obtained cotton and leather samples was evaluated by photocatalytic discoloration of berry juice surface stains under UV light irradiation for 12 h. The successfulness of coating formulations was proven by the SEM analysis and UV–Vis spectroscopy. The XRD patterns and ATR-FTIR spectra revealed the cellulose and collagen structures as dominant components of cotton and leather substrates. The CAPP treatment did not damage the cotton and leather structures. The photocatalytic results highlighted the potential of TiO2-SiO2-reduced graphene oxide composites in organic dispersion media, as coating formulations, for further use in the fabrication of innovative self-cleaning photocatalytic cotton and leather products