Wyniki wyszukiwania - AGRO

1

Mathematical model for determination of thermal conductivity in plant materials

100%

Kaleta A.

Annals of Warsaw Agricultural University. Agriculture

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2001

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nr 41 Agric.Eng.

65-69

2

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Energetic loading of forage harvester working units depending on cutting length of the plant material

100%

Chlebowski J., Klonowski J.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

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2014

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nr 64 Agric.Forest Eng.

3

ABA contents and the regeneration ability of Fritillaria imperialis L. cultured in vitro

100%

Lukaszewska A. J., Witomska M., Bianco J., Barthe P.

Acta Physiologiae Plantarum

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1998

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tom 20

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nr 3

Correlation between ABA content in “mother” tissue and subsequent regeneration ability of Fritillaria imperialis cultured in vitro was investigated. In every experiment regeneration was always most efficient from plant material containing the lowest amount of free ABA: a leafy stem part, bulbs used for micropropagation in October and those stored two months at 30 °C prior to in vitro culture. However, no direct correlation between the absolute amounts of ABA and percentage of regeneration was found.

4

Rezul'taty ehksperimental'nykh issledovanijj pressa predvaritel'nogo uplotnenija s klinopodobnojj kamerojj dlja rastitel'nykh materialov

88%

Milko D.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2016

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tom 18

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nr 1

5

Measurement of grain surface roughness

88%

Fraczek J., Kaczorowski J., Slipek Z.

International Agrophysics

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2000

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tom 14

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nr 2

6

A rapid HPLC method for determination of major phenolic acids in plant material

88%

Olkowski A. A., Amarowicz R., Peiquiang Y., McKinnon J. J., Maenz D. D.

Polish Journal of Food and Nutrition Sciences

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2003

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tom 12/53

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nr 1

The present work describes a simplified, and rapid HPLC method for measurement of phenolic acids in plant material. This procedure allows baseline resolution of major phenolic acids commonly found in plants p-hydroxybenzoic, caffeic, syringic, o-coumaric, m-coumaric, p-coumaric, gentisic, ferulic, sinapic, salicylic), it is specific, sensitive, and ensures good reproducibility. The precision and reproducibility obtained using the present approach gave results comparable or better than the more complex, more laborious, and time consuming procedures. The time of HPLC separation of the phenolic acids in the presented procedure was significantly improved by the use of polymer based reverse phase column (PRP-1 column; 4.1 x 150 mm, 5 /µm; Hamilton), and careful attention to the pH of the mobile phase, which allowed turnaround times of approximately 15 min and significantly lower solvent use. The present method allows the possibility for processing of a large number of samples rapidly, efficiently, and at a low cost.

7

Life cycle assessment of fertilizers: a review

75%

Skowronska M., Filipek T.

International Agrophysics

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2014

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tom 28

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nr 1

Life cycle assessment has become an increasingly common approach for identifying, quantifying, and evaluating the total potential environmental impact of production processes or products, from the procurement of raw materials (the ‘cradle’), to production and utilization (the ‘gates’) and their final storage (the ‘grave’), as well as for determining ways to repair damage to the environment. The paper describes life cycle assessment of mineral fertilizers. On the basis of results provided by life cycle assessment, it can be concluded that an effective strategy for protecting the environment against the harmful effects of fertilizers is to attempt to ‘seal’ the nutrient cycle on a global, regional, and local scale. Pro-environ- mental measures aim on the one hand to reduce resource utilization, and on the other hand to limit losses of nutrients, during both production and use of fertilizers. An undoubted challenge for life cycle assessment when used in agricultural production is the need for relevance at each scale.

8

Antidiarrheal activity of fractions from aqueous extract of Detarium senegalense

75%

Sanni F. S., Hamza H. G., Onyeyili P. A.

Herba Polonica

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2015

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tom 61

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nr 2

The aim of this study was to evaluate the effect of different fractions of the aqueous crude extract of Detarium senegalense stem bark on castor oil-induced diarrhea. Castor oilinduced diarrhea, gastrointestinal motility and castor oil-induced enteropooling methods were used to evaluate the antidiarrheal effects of the fractions. Castor oil was used to induce diarrhea and the effect of all the fractions (chloroform, ethyl acetate, n-butanol, methanol and residual aqueous) were evaluated at the doses of 200 and 400 mg/kg body weight. The results show that all fractions significantly (p<0.05) decreased the frequency of defecation in rats following the induction of diarrhea with castor oil. Ethyl acetate which produced the highest antidiarrheal activity was further subjected to gastrointestinal motility and castor oil-induced enteropooling tests. In the gastrointestinal motility, two test doses of the extract (200 and 400 mg/kg) were administered orally to two groups of rats (n=5), while the third group of rats (control), were treated with normal saline, and the fourth group were treated with diphenoxylate, a conventional anti-diarrheal drug. In the castor oil-induced enteropooling experiment, normal saline was used for the control animals, while 200 and 400 mg/kg of the extract was administered to groups two and three, respectively and atropine, a standard drug, was administered to rats in group four. The ethyl acetate fraction significantly (p<0.05) decreased the gastro-intestinal motility, as shown by the extent of movement of the charcoal meal in the treated rats. It also significantly inhibited the fluid accumulation within the intestine. These findings suggest that the ethyl acetate fraction possess antidiarrheal effect, which may be due to the presence of some phytochemical constituents (alkaloids, flavonoids and tannins) in the plant, which may either be working alone or in combination with each other. This study has demonstrated that D. senegalense fractions, especially the ethyl acetate fraction, possess antidiarrheal activity thus supporting the use of the plant in the treatment of diarrheal diseases.

9

Comparative investigations on cutting of various plant materials in the cutter with flywheel chopping unit

75%

Lisowski A., Waszkiewicz C., Klonowski J.

Annals of Warsaw Agricultural University. Agriculture

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2003

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nr 44 Agric.Eng.

37-42

10

Sintez krivolinejjnojj poverkhnosti formovochnojj golovki pressa rastitel'nykh materialov

75%

Kuzenko D., Levko S.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2013

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tom 15

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nr 4

11

Osobennosti mekhaniko-tekhnologicheskikh svojjstv solomy rapsa vo vremja pressovanija

75%

Boyarchuk W., Chuchman W., Tatomyr A.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2013

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tom 15

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nr 4

12

Further studies in chromosome numbers of Polish angiosperms. Part XXIV

75%

Pogan E., Jankun A., Wcislo H.

Acta Biologica Cracoviensia. Series Botanica

|

1991

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tom 33

13

Study of chlorothalonil uptake in selected plant materials

75%

Zebrowski W., Ligor T., Buszewski B.

Polish Journal of Environmental Studies

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2008

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tom 17

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nr 3

321-326

The objective of this work was to create a sorption model of different pesticides in plant material. The above-quoted model includes graphic curves describing the pesticide’s behaviour in time (concentration level) depending on the place of sorption. Apart from curves the model also includes mathematical equations that allow us to predict the concentration of a pesticide in time function. The model has been developed based on research data obtained in a special experimental device. This article accounts for the transportation model of chosen xenobiotics in plants. Chlorothalonil were used as a model pesticide. Chlorothalonil is a nonsystemic fungicide that has been used to control disease of many fruits, vegetables, and other agricultural crops. As a method of sample preparation supercritical fluid extraction was used. Gas chromatography with mass spectrometry was used for qualitative and quantitative analysis. The detection limit (LOD) of chlorothalonil was on level 0.01 µg/g. and the limit of quantification (LOQ) was level on 0.03 µg/g.

14

Obosnovanie formy diffuzora dvukhshnekovogo uplotnitelja i teoreticheskie issledovanija izmenjaemogo v nem davlenija

75%

Milko D.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2015

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tom 17

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nr 7

15

Standaryzacja w badaniach właściwości fizycznych materiałów roślinnych

75%

Slipek Z., Fraczek J., Horabik J., Kaczorowski J., Molenda M.

Acta Agrophysica

|

2002

|

tom 60

16

Compacting of plants in the feed rolls unit of forage harvester

75%

Chlebowski J.

Annals of Warsaw University of Life Sciences - SGGW. Agriculture

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2012

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nr 59 Agric.Forest Eng.

17

Development of a rapid, reliable and simple multiplex PCR assay for early detection of transgenic plant material

75%

Xu C. J., Yang L., Chen K. S.

Acta Physiologiae Plantarum

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2005

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tom 27

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nr 3A

Multiplex PCR is a variant of conventional PCR which includes two or more pairs of primers in a single reaction to amplify corresponding genes simultaneously. In this study, a reliable multiplex PCR analysis protocol was established for simple and fast detection of transgenes in plant materials. Two pairs of primers, corresponding to neomycin phosphotransferase gene and 1-aminocyclopropane-1-carboxylate synthase gene, were selected for target and resident gene respectively. The method bypasses routine DNA extraction, requires only very little amount of plant tissue and produces reliable results as shown by successful discrimination of transformed and non transformed tobacco, tomato and kumquat materials. The method facilitates early identification of transgenic buds when they are still quite small.

18

Modelling of the external friction kinetic process in plant materials. Part III. Mathematical model

75%

Kaczorowski J., Slipek Z., Fraczek J.

Annual Review of Agricultural Engineering

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1996

|

tom 01

19

Can the callus tissue metabolic activity be an indicator of its ability for in vitro differentiation?

75%

Zur I., Koscielniak J.

Acta Physiologiae Plantarum

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1997

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tom 19

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nr 2

20

Sulphated flavonoid glycosides from leaves of Atriplex hortensis

75%

Bylka W., Stobiecki M., Franski R.

Acta Physiologiae Plantarum

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2001

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tom 23

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nr 3

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