Wyniki wyszukiwania - AGRO

1

Preliminary investigations into the behaviour of honeybees under apitron conditions

100%

Siceanu A., Malaiu A., Cozma E., Mihaita M., Guresoaie I.

Pszczelnicze Zeszyty Naukowe

|

1997

|

tom 41

2

Hierarchical distortions within the Romanian urban system

100%

Ianos I.

Geographia Polonica

|

1997

|

tom 69

3

Thermal solar collector behaviour in Romania

88%

Balan M. C., Jantschi L., Bolboaca S., Damian M.

Polish Journal of Environmental Studies

|

2010

|

tom 19

|

nr 1

231-241

Our study of thermal solar collectors' behaviour in a transitory regime covered a period of 9 months, from August 2007 to May 2008. The data were measured using two pyranometers (one shaded) and were recorded into a database with a baud rate of 50 seconds. Sun a position was calculated using a previously reported mathematical model embedded into an online software application. Standard technical parameters of solar thermal collectors were used to estimate their efficiency at the measuring location. Results reflect the particular conditions at Cluj-Napoca, Romania, and provide a local solar energy potential evaluation. Influences of a collector's type and time of year on thermal solar collectors' efficiency, thermal power, and accumulated heat are given. The described methodology and procedure of assessment are general and may be applied anywhere.

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Root distribution of apple tree under various irrigation systems within the hilly region of Romania

88%

Tanasescu N., Paltineanu C.

International Agrophysics

|

2004

|

tom 18

|

nr 2

5

Comparison between experimental and estimated crop evapotranspiration in Romania

88%

Paltineanu C.

International Agrophysics

|

2005

|

tom 19

|

nr 2

6

Biochronology of the Pleistocene deposits at Betfia [ Bihor, Romania ]

88%

Terzea E.

Acta Zoologica Cracoviensia

|

1996

|

tom 39

|

nr 1

7

Epidemiological study of canine babesiosis and hepatozoonosis in the South of Romania

75%

Cimpan A. A., Nachun-Biala Y., Ben-Shitrit B., Miron L., Baneth G.

Acta Parasitologica

|

2020

|

tom 65

|

nr 3

8

Multi-element composition of honey as a suitable tool for its authenticity analysis

75%

Oroian M., Amariei S., Leahu A., Gutt G.

Polish Journal of Food and Nutrition Sciences

|

2015

|

tom 65

|

nr 2

The aim of this study was to evaluate the composition of 36 honey samples of 4 different botanical origins (acacia, sun flower, tilia and honeydew) from the North East region of Romania. An inductively coupled plasma-mass spectrometry (ICP-MS) method was used to determine 27 elements in honey (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, K, Li, Mg, Mn, Na, Ni, Pb, Rb, Se, Sr, Tl, U, V and Zn). We would like to achieve the following goal: to demonstrate that the qualitative and quantitative multi-element composition determination of honey can be used as a suitable tool to classify honey according to its botanical origin. The principal component analysis allowed the reduction of the 27 variables to 2 principal components which explained 74% of the total variance. The dominant elements which were strongly associated with the principal component were K, Mg and Ca. Discriminant models obtained for each kind of botanical honey confirmed that the differentiation of honeys according to their botanical origin was mainly based on multi-element composition. A correct classification of all samples was achieved with the exception of 11.1% of honeydew honeys.

9

The role of small farms in Romania and their future in the face of challenges of the CAP post 2013

75%

Alexandri C., Luca L.

Problemy Drobnych Gospodarstw Rolnych

|

2012

|

nr 1

10

Mycobiota of rape seeds in Romania. I. Identification of mycobiota associated with rape seeds from different areas of Romania

75%

Sesan T.-E., Groza O.

Acta Mycologica

|

2013

|

tom 48

|

nr 2

The spectrum of fungal diversity associated with rape seeds belonging to 33 cultivars (Alaska, Astrada, Astrid, Atlantic, Betty, Champlein, Chayenne, Dexter, Digger, Elvis, Eurowest, Finesse, Herkules, Hydromel, Hydromel-MA, Ladoga, Manitoba, Masa Rom, Milena, Mohican, Montego, Nectar, Ontario, Orkan, Perla (4 lots), Remy, Robust, Rodeo, Saphir, Tiger, Tiger CBC Lot ROM06-121-110, Triangle, Valesca, Vectra) and 2 hybrids (H-90-20-83, H-90-21-83) has been established by samples’ macroscopical and microscopical analizying, during 2006-2008, for the first time in Romania. The Ulster method on malt-agar and PDA culture media has been used, evaluating the percentage of fungal taxons present on/in rape seeds. The most important pathogenic fungi identified were: Sclerotinia sclerotiorum (Lib.) de Bary, Botrytis cinerea Pers., Rhizoctonia solani Kühn, Alternaria brassicae (Berk.) Sacc., A. brassicicola (Schwein.) Wiltshire and Fusarium spp. Also, a large quantities of some saprophytic fungi, as Alternaria, Cladosporium, Aspergillus, Penicillium, Rhizopus have been recorded. These ones have been affected the health condition of rape seeds, suppressing their germination and other vital phenomena. Among potential antagonistic fungi the followiung genera have been isolated: Chaetomium (0-4%), Trichoderma (0-10%), Aspergillus (0-14%), Penicillium (0-100%). Some correlations and comparisons have been established between fungal diversity, their provenience, cultivars, culture media (Malt-Agar/MA, Potato-Dextrose-Agar/PDA) used. It has been evaluated the behaviour of rape cultivars and hybrids towards the main rape seed pathogens.

11

Low genetic variability of Rhinolophus mehelyi (Mehely's horseshoe bat) in Romania

75%

Dragu A., Borissov I.

Acta Theriologica

|

2011

|

tom 56

|

nr 4

Rhinolophus mehelyi (Mehely's horseshoe bat) is a vulnerable species with an increasingly fragmented distribution. In Romania, populations of R. mehelyi have experienced a dramatic decline over the past 50 years, and the current population size is estimated at only 100 adult individuals inhabiting almost exclusively the Limanu cave. In the present study, we investigated the genetic consequences of population decline for the viability of the remaining population of R. mehelyi in Romania. We sequenced and analyzed a 359-bp fragment of the mitochondrial control region from the only known Romanian population and compared it with two geographically close colonies from Bulgaria. A single haplotype was found in the Romanian population compared to 10 in the Bulgarian population, suggesting genetic isolation.

12

World economic crisis and its effects on the Romanian economy

75%

Caraman Hudea O. S., Marinescu P., Toma S. G.

Zeszyty Naukowe Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach. Seria: Administracja i Zarządzanie

|

2012

|

nr 20[93]

13

Time motion differences between Romanian and Polish high level young soccer players during 6 vs 6 small sides games as an effect of training program

75%

Jastrzebski Z., Radziminski L., Stefaniak A., Dragos P., Dumitrescu G., Stepien P., Mrozik L.

Central European Journal of Sport Sciences and Medicine

|

2015

|

tom 10

|

nr 2

The purpose of this study was to present a time motion differences between Romanian and Polish young soccer players during 6 vs 6 small sided games. Young male football players from Schools of Sports Masters in Oradea (Romania) and Łódź (Poland) participated in the study. During the training session the players participated in four small-sided games 6 vs. 6 with goalkeepers (4 × 4 min, 3 min of active recovery). Heart rate responses and distance covered during small-sided games were compared. There were significant differences in the distance covered by both nationality players and age groups in reference to each intensity zone. Polish players coverd significantly longer distance compared with romanian soccer players. The results of motion abilities of young players from two countries with different training systems show that training programs can have a significant effect on adoptive abilities of the players.

14

Comparative study for the detection of antibodies to Neospora caninum in milk and sera in dairy cattle in Southern Romania

75%

Enachescu V., Ionita M., Mitrea I. L.

Acta Parasitologica

|

2014

|

tom 59

|

nr 1

The study aimed to assess the within-herd Neospora caninum exposure in dairy cattle in southern Romania, based on the detection of specific antibodies in milk and serum. A total of 104 paired samples of milk and serum were collected from four dairy farms. Individual samples were analyzed for N. caninum antibodies by ELISA: IDEXX Neospora Ab (Idx) (three farms: A, B, C; n = 60) and ID-VET Lab (Idv) (farm D; n = 44). Additionally, four pooled milk samples, one per each farm (A, B, C) and a composed one (A+B+C), were analyzed with Idx ELISA. Optimized cut-off values for milk samples were determined by receiver operating characteristic (ROC) analysis, with serum results considered as true status. The agreement was expressed by K values. The overall seroprevalence of N. caninum infection was 45% in the farms tested by Idx ELISA and 56.8% in the farm tested by Idv ELISA. A good agreement between serum and milk was obtained for both ELISA kits (K = 0.72 and 0.77, respectively). The specificity and sensitivity at optimized cut-off of S/P>0.704 for Idx and S/P%>7.966% for Idv were 100% and 70.37% for Idx and 89.47% and 88% for Idv. Testing pooled milk samples, there were identified as N. caninum positive the dairy farms with a 15% or higher within-herd seroprevalence at the cut-off value of S/P>0.51. This is the first study in Romania in which milk samples were tested to determine the N. caninum infection status in dairy farms, providing a base for further researches.

15

Water quality management of the waters of the Romanian River Hartibaciu

75%

Sandru D. M.

International Letters of Natural Sciences

|

2015

|

tom 48

This study aims at monitoring physico-chemical features of the waters of the Hârtibaciu River in Romania with a view to establishing its qualitative benchmarks. Using the waters of this river for agricultural purposes leads to the establishment of its physical and chemical features and its falling within the related quality group. This study has monitored general chemical indicators and specific chemical indicators in the waters of the Hârtibaciu River; the resulting values show that it falls within the 2nd/3rd quality group.

16

Research on the influence of some technological factors upon the increment of wheat yield

75%

Barbu A., Picu I., Petcu G.

Fragmenta Agronomica

|

1995

|

tom 12

|

nr 2

17

Miocene rhinoceroses from Romania: an overview

75%

Codrea V.

Acta Zoologica Cracoviensia

|

1996

|

tom 39

|

nr 1

18

Relationships between some soil properties and growth indexes in plum and apple trees within the hilly regions of Romania

75%

Paltineanu C., Chitu E., Tanasescu N., Moldoveanu D., Prefac Z.

International Agrophysics

|

2003

|

tom 17

|

nr 4

19

Crop rotation an important way in weed control for winter wheat [Triticum aestivum] cropping

75%

Petcu G., Ionita S., Barbu A.

Fragmenta Agronomica

|

1995

|

tom 12

|

nr 2

20

Remarks on the status of Wood Sandpiper [Tringa glareola] in Romania

75%

Sandor A. D., Virginas A.

The Ring

|

1998

|

tom 20

|

nr 1-2

Ograniczanie wyników