ADAPTATION OF WOFOST MODEL FROM CGMS TO ROMANIAN CONDITIONS

This preliminary study is an inventory of the main resources and difficulties in adaptation of the Crop Growth Monitoring System (CGMS) used by Agri4cast unit of IPSC from Joint Research Centre (JRC) - Ispra of European Commission to conditions of Romania.In contrast with the original model calibrated mainly with statistical average yields at national level, for local calibration of the model the statistical yields at lower administrative units (macroregion or county) must be used. In addition, for winter crops, the start of simulation in the new system will be in the autumn of the previous year. The start of simulation (and emergence day) in the genuine system is 1st of January of the current year and the existing calibration was meant to provide a compensation system for this technical physiological delay.Proposed approach provides a better initialisation of the water balance (emergence occurs after start of simulation), as well as a better account for impact of wintering conditions, but obviously a new calibration for all cultivar dependent parameters is necessary. For the preoperational run, the localized model will use the weather data available till the last day available and the missing data from the rest of the year will be replaced either by the daily values of the long term averages or by the values from a year considered similar with the current one.Proposed adaptations permit a better use of information available on local scale and the localized model may be the core of a regional system for crop monitoring and in the same degree as the original system it can be used as tool for specific researches, such as studying the impact of climate changes

RESEARCH ON THE SELECTIVITY AND EFFICACY OF HERBICIDES FOR CONTROLLING WEEDS FROM THE WHEAT CROP IN PEDOCLIMATE CONDITIONS FROM NARDI FUNDULEA

This paper present the results obtained at National Agricultural Research and Development Institute Fundulea, during 2021-2022, according to the new herbicide treatments: Floramix (70,8 g/kg piroxsulam + 14,2 g/kg florasulam + 70,8 g/kg cloquintocet-mexil - safener) + Dasoil 26-2 N (Adjuvant); Pallas (7.5% piroxsulam + 7.5% cloquintocet-mexil safener) + Adjuvant; Omnera + Foxtrot 69 EW (135 g/l fluroxypyr + 30 g/l thifensulfuron metil + 5 g/l metsulfuron metil 69 g/l fenoxaprop-P-etil + 34,5 g/l cloquintocet mexil - safener) și Pixxaro Super (2 g/l halauxifen-metil + 280 g/l fluroxipir meptil + 12 g/l cloquintocet-mexil), postemergently applied for the weeds controlling from the w. wheat crop. The main objective of this work focused on the study of the selectivity and effectiveness of the application of herbicide treatments to combat monocotyledonous and dicotyledonous weeds present in the wheat crop. Wheat is an important crop affected by many weeds which, fortunately, can be effectively controlled by specific applications of herbicides. The herbicides must be correlated with the infestation degree of weed, the spectrum and dominance of weeds, the time of application, the technical potential for efficacy, the local climatic conditions

Identifying the chaîne opératoire of prehistoric clay figurines using experimental archeology and imaging methods

This paper reports the use of experimental archaeology and imaging methods—X-ray computed tomography (CT) and radiography—that were employed to decipher the manufacturing techniques of Eneolithic clay artefacts. This study was triggered by the archaeological research conducted in some tell settlements in Southeastern Romania that belong to the Kodjadermen-Gumelniţa-Karanovo VI culture (c. 4500–3900 BC). The findings reported here represent the first accounts of a recently started research project, which has as its main goal the re-creation of Eneolithic clay artefacts and the identification of the chaîne opératoire used for manufacturing these objects. In particular, X-ray imaging techniques were used as complementary methods to help understand the structure of intact Eneolithic artefacts. In a subsequent step of this research, these techniques will be employed to check for similarities between the archaeological items and modern pottery replicas created in experimental archaeology workshops

New research on the study of selectivity and efficacy of treatments on weed control for the maize crop

This paper present the results obtained at National Agricultural Research and Development Institute Fundulea, during 2019-2020, according to the new herbicide treatments: Diniro (prosulfuron 40 g/kg + dicamba 400 g/kg + nicosulfuron 100 g/kg) + Trend (adjuvant); Radial 40 (40 g/l nicosulfuron) + Dicopur Top (344 g/l acid 2,4 D from DMA salt and 120 g/l dicamba); Principal plus (50 g/kg dicamba + 92 g/kg nicosulfuron + 23 g/kg rimsulfuron) +Trend (adjuvant); Radial 60 (60 g/l nicosulfuron) + Hudson (fluroxypyr 200 gr/l), postemergently applied - BBCH 14-16, maize 4-6 leaves-, for the annual and perennial weeds controlling from the maize crop. The weather from the experimentation years is representative for the local trend for last decade. The differences (5.64 t/ha in average) between yields of control plots and the yields of treated plots were significant in all years, but the differences within the yields of treated plots were not significant. The herbicides must be correlated with the infestation degree of weed, the spectrum and dominance of weeds, the time of application, the technical potential for efficacy, the local climatic conditions

Effect of climatic conditions on some physiological indicators of winter wheat cultivated in organic farming system

Leaf area index, normalized index of vegetation and yield are important traits affected by environmental factors. The objective of this study was to evaluate the effect of three different year on leaf area index, normalized index of vegetation and its implication on the winter wheat yield cultivated in organic farming system. Twenty wheat cultivars were sowing during 2016-2018 under rainfed conditions at National Agricultural Research and Development Institute Fundulea, Romania, on a cambic chernozem soil. Climatic conditions and cultivars strongly influenced all studied traits in this study. The highest leaf area index and NDVI were reached in 2016, while the lowest ones were recorded in organic farming system for all cultivars in 2018. In conditions of 2018 year LAI ranged from 1.6 (Bezostaia) to 3.1 m2 /m2 (Glosa), reflecting less favorable conditions of water and nutrients supply than in 2016 when in the same genotypes the LAI values were 0.35 and 0.54, respectively. The correlations between leaf area index, normalized index of vegetation and yield obtained in experimental years, were very significantly positive, suggesting that a higher yield in organic farming system can be associated with capacity of cultivar for a higher leaf area to achieve a good ground cover

Looking beyond appearances: a multi-analytical approach on the prehistoric clay weights

AbstractIn this paper we analyzed a batch of 64 clay weights from three archaeological sites located in Romania (Gumelniţa, Măgura-Jilava, and Sultana) that belong to Kodjadermen-Gumelniţa-Karanovo VI cultural complex (4600–3900 cal. BC). Our approach includes an interdisciplinary investigation based on technological analysis, experimental archaeology, and X-ray CT scans coupled with statistical analysis. This investigation has a high potential to reveal relevant information regarding the technological background (e.g., inclusion, voids, temper, etc.), manufacturing stages (e.g., modeling, shaping, kneading, etc.), or transformation processes (e.g., drying and firing vs. weight and size modification) in order to identify, explain and understand thechaîne operatoirefor this type of artefacts. Moreover, correlation of the results with the experimental archaeology could offer an integrative interpretation about the material culture of past humans and its multiple meanings, but also critical information about the multiple dimensions of manufacture for these objects (e.g., time, effort, physical–chemical processes, etc.). The multi-analytical approach proposed here also includes a comparative study of technological aspects of these clay weights across the three archaeological sites investigated, as well as the experimental replicas

Necrotic enteritis in meat chicken raised at the ground in permanent bedding

Poultry necrotic enteritis is an acute clostridial infection characterized by severe necroses of intestinal mucosa. The disease begins suddenly, with a sharp increase in death rate and dehydration. Clostridium perfringens, a sporulated, anaerobic, Gram-positive bacterium is commonly found in the environment and in the gastrointestinal tract as part of the normal intestinal flora. Frequent presence in the digestive tract of healthy birds is associated with necrotic enteritis in broilers. The research was conducted on 323 samples (120 live chickens, 89 corpses, 104 feed samples and 10 water samples) collected from a farm with 32 253 hybrid Ross 308 broilers (21 days), raised at the ground on permanent bedding, where there was a significant increase in mortality above the permissible limit. The necropsy performed on 980 chicken corps revealed a different prevalence of intestinal tract lesions: bleeding wall (28.37%), mucosal necrosis (23.22%), gas content (18.57%), mucosal inflammation (15.73%) and red orange mucus in the intestines (14.10%). Bacteriological examination identified Clostridium perfringens in 11.66% of live broilers, 10.11% of chicken corps, 61.53% of feed samples and 3.09% of water samples. Increased percentage this species isolation suggests that feed taken from the hall was an important source of infection for broilers reared on the ground

Unravelling the complexity of domestication:A case study using morphometrics and ancient DNA analyses of archaeological pigs from Romania

Funding statement. This work was supported by the Natural Environment Research Council (NE/F003382/1) and the Leverhulme Trust (F/00 128/AX) Acknowledgements. Archaeozoological analyses conducted by A. Ba˘la˘s¸escu were supported by three grants from the Romanian National Authority for Scientific Research, CNCS UEFISCDI (PN-II-RU-TE-20113-0146, PN-II-ID-PCE-2011-3-0982 and PN-IIID-PCE-2011-3-1015). We thank the archeologists Ca˘ta˘lin Bem, Alexandru Dragoman, Valentin Dumitras¸cu, Laura Dietrich, Raluca Koga˘lniceanu, Cristian Micu, Sta˘nica Pandrea, Valentin Parnic, George Trohani, Valentina Voinea for the material they generously provided. We thank the many institutions and individuals that provided sample material and access to collections, especially the curators of the Museum fu¨r Naturkunde, Berlin; Muse´um National d’Histoire Naturelle, Paris; Muse´um d’Histoire Naturelle, Gene`ve; Museum fu¨r Haustierkunde, Halle; National Museum of Natural History, Washington; The Field Museum, Chicago and The American Museum of Natural History, New York; The Naturhistorisches Museum, BernPeer reviewedPublisher PD

Serum cytokine and chemokine profiles of patients with confirmed bacterial and viral meningitis

Introduction: Cerebrospinal fluid (CSF) cytokines and chemokines have been reported by several studies as useful markers to discriminate bacterial and viral meningitis (BM and VM). This study aimed to investigate if serum cytokine and chemokine profiles could also differentiate BM from VM, thus circumventing the need for an invasive lumbar puncture