Wyniki wyszukiwania - AGRO

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Flower bud damage in twenty strawberry cultivars by the strawberry blossom weevil - Anthonomus rubi Herbst

100%

Labanowska B. H.

Journal of Fruit and Ornamental Plant Research

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2004

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tom 12

2

Damages to the surface layer of soil during timber harvesting using the equipment aggregated with farm tractors

86%

Kulak D., Sowa J. M., Stanczykiewicz A., Szewczyk G.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2012

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tom 11

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nr 2

In the study, impact of three devices aggregated with farm tractors on forest soil was compared – FRANSGARD 6000 GS cable winch and two processors – NIAB 5-15 and HYPRO 450. The basic difference between the above mentioned machines consists in the fact that the cable winch skids debranched tree stems while processors skid the whole trees, including their tree-tops. The percentage of soil injured in late pine stand thinning reached, respectively: 1.2%, 2.2% and 5.5%. The analysis of significance of differences in Ug indicators characterising the damages induced has shown that only the indicator computed for HYPRO processor is significantly higher than the others. However, as the simulation performed has confirmed, appropriate thickening of skidding routes enables to achieve a comparable level of damages for all the machines examined. Taking into account the impact on forest soil, application of processors aggregated with farm tractors can be recommended for thinning stands.

3

Effect of wear of saw chain cutters on the rate of wood cutting

86%

Maciak A.

Annals of Warsaw Agricultural University. Agriculture

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2000

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nr 36 Agric.Forestry Eng.

21-26

4

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Assessment of technical condition of forklift tyres used in internal transport by studying damages and operating conditions

86%

Gorzelanczyk P., Gorniak W.

Nauki Inżynierskie i Technologie

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2019

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nr 2(33)

5

Multiple impact effects of wheat grain

86%

Slipek Z., Zlobecki A.

International Agrophysics

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1994

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tom 08

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nr 2

72%

Kukula-Mlynarczyk A., Hurej M., Jackowski J.

Journal of Plant Protection Research

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2006

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tom 46

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nr 1

41-47

Observations on the development of the horse chestnut leafminer on red horse chestnut (Aesculus x carnea H.) were carried out in Wrocław, Lower Silesia, Poland, in 2001–2003. Three generations of the pest were recorded to lay eggs on the red horse chestnut leaves. Although females of each generation deposited eggs abundantly, the hatching larvae died after a short period of feeding in the plant’s leaves and the species did not complete its development on this tree. Mostly L1 and L2 larvae were found inside the leaf mines. The observed leaf damage was, therefore, negligible.

12

Damage to trees and regeneration layer resulting from timber harvesting with the use of equipment aggregated with farm tractors in thinned pine stands

72%

Stanczykiewicz A., Sowa J. M., Kulak D., Leszczynski K., Szewczyk G.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2012

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tom 11

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nr 2

The research was conducted in pine stands where selective early and late thinning was carried out with the use of NIAB 5-15 and HYPRO 450 debranching and cutting processors along with a FRANSGÅRD V-6000 GS cable winch aggregated with farm tractors. In case of cut-to-length system, timber harvesting was executed by means of processors and in case of tree-length system – by means of a cable winch. The harvested timber was forwarded to the depots in the second stage with the use of self-loading trailers or skidded with the use of a cable winch. Tree damage in case of processor technology oscillated at the level of 3.1-11.3%, and in case of a cable winch: 3.0-10.9%. The level of damage to the regeneration layer amounted to 4.1-27.1% for the areas where processors had been used. For the areas where timber was harvested by means of a cable winch, the level of tree damage was 5.2 -14.0% of trees growing under the main stand’s crown layer.

13

Susceptibility of various varieties of broad bean (Vicia faba L.) to damage caused by slugs

72%

Jaskulska M., Kozlowski J., Kozlowska M.

Folia Malacologica

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2016

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tom 24

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nr 1

14

The inventory and characterization of torrential flood phenomenon in Serbia

72%

Petrovic A., Kostadinov S., Dragicevic S.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 3

Torrential floods are the most destructive and most frequent natural disasters in Serbia with severe social, economic, cultural, and environmental consequences that deserve special attention. This paper presents a datacollection strategy and data analysis in terms of spatial and temporal characterization of the torrential flood phenomenon in Serbia for the last 99 years. Based on the available information obtained from various reliable sources, we registered 848 torrential flood events for 1915-2013. The registered number of deaths from torrential floods is over 133, including 24 people from 1991 to 2010. Monthly distribution of registered torrential floods indicates that the majority of floods occurred in Serbian territory in late spring (from May to the end of June) and the greatest number of torrential floods is registered in Southern Morava basin. This work resulted in creating a first inventory of torrential floods in Serbia and its analysis for the purpose of the spatial and temporal distribution and characterization of this phenomenon. The inventory on torrential floods will be integrated in future in a unique multi-user database on natural hazards in Serbia, and it should become a part of the European database of natural hazards.

15

Epidemiology and damage caused by stem canker of oilseed rape in Poland

72%

Jedryczka M.

Phytopathologia Polonica

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2007

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tom 45

16

Factors influencing the restitution of the duodenal and colonic mucosa after damage

72%

Riegler M., Feil W., Wenzl E., Schiessel R.

Journal of Physiology and Pharmacology

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1991

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tom 42

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nr 1

Rapid epithelial restitution is an important protective mechanism which enables the gastrointestinal mucosa to reestablish epithelial integrity following superficial injury within hours. In this study we examined the influence of an acidic luminal pH, removal of the necrotic layer, nutrient bicarbonate, calcium and sodium desoxycholate (Na-DOC) on restitution in the rabbit duodenum in vitro and the role of Na-DOC and calcium for rapid restitution of the human colon in vitro. Transmucosal potential difference (PD), short-circuit current (lsc) were measured and resistance against passive ion flux (R) was calculated. Electrophysiological changes paralleled morphological injury but did not necessarily reflect restitution in all experiments. The extent of mucosal injury was assessed by computerized real-time morphometry. 5 hrs after luminal exposure to 10 mH HCl for 10 min residual damage (RD) was 14% in the duodenum. Luminal pH of 3.0 (RD of 30%), removal of necrotic layer at acidic luminal pH (RD of 66%), absence of bicarbonate from the serosal solution (RD of 35 % at neutral luminal pH; RD of 96% at acidic luminal pH) and removal of calcium from the serosal solution (RD of 58 %) impaired restitution in the duodenum. Continuous postinjury luminal Na-DOC exposure did not influence restitution in the duodenum (RD of 19%). 5 hrs after luminal exposure to 0.5 mM Na-DOC for 10 min RD was 26% in the human colon. Continuous postinjury luminal Na-DOC exposure (RD of 51 %) and removal of calcium from the nutrient solution (RD of 65 %) impaired restitution in the human colon. Thus we conclude that restitution of the rabbit duodenum in vitro requires a necrotic layer and bicarbonate flux to withstand acidic luminal pH, while restitution is not Effected by Na-DOC. In the human colon Na-DOC inhibits restitution. Both the duodenum and colon require calcium for rapid restitution.

17

Kompleksnoe rassmotrenie voprosa vosstanovlenija pravoslavnykh khramov

72%

Goncharenko D., Zabelin C., Likhograjj V.

Motrol. Motoryzacja i Energetyka Rolnictwa

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2015

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tom 17

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nr 6

18

Damage to potato tubers by Arion vulgaris Moquin-Tandon, 1885, Arion rufus (Linnaeus, 1758) and Deroceras reticulatum (O. F. Muller, 1774)

72%

Kozlowski J., Jaskulska M., Kozlowska M.

Folia Malacologica

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2016

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tom 24

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nr 1

19

Assessing the extent of damage caused by Cleonus piger Scop. and other entomofauna in the cultivation of milk thistle [Silybum marianum [L.] Gaertn.]

72%

Andrzejewska J., Lamparski R., Skinder Z.

Journal of Plant Protection Research

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2006

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tom 46

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nr 1

49-59

The research on impact of Cleonus piger Scop. (Coleoptera; Curculionidae) feeding and the occurrence of other pest insects on milk thistle plants grown in monoculture and crop rotation after cereals, with two different seeding dates was carried out in the years 2003–2005. The infestation and density of C. piger larvae in roots of plants grown in monoculture increased with subsequent developmental phases and subsequent years of the experiment. Feeding resulted in the decrease in crop yield by 40% compared to the crop rotation treatment. In crop rotation stands, the infestation of milk thistle roots by C. piger larvae was 4–5 times lower at the final phase than in monoculture. Postponing seeding by three weeks led to the decrease of infestation and density of C. piger larvae, but the crop yield was lower than that from the earlyseeded stands. No other phytophagous species of economic importance were found.

20

Susceptibility of Sitophilus zeamais Mots. and Callosobruchus maculatus F. to plant parts of Ricinodendron heudelotii

72%

Epidi T. T., Udo I. O., Osakwe J. A.

Journal of Plant Protection Research

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2009

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tom 49

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nr 4

411-415

Studies were carried out in the laboratory to determine the efficacy of powders from plant parts of Ricinodendron heudelotii against the storage pests Sitophilus zeamais and Callosobruchus maculatus on stored maize and cowpea, respectively. Leaf, bark and root powders were added as admixtures to 100 g of grains to assess contact toxicity, damage assessment, progeny production and grain germination. Results indicated that the plant materials were toxic to the two insect species with over 30% and 75% mortality for S. zeamais and C. maculatus, respectively. Observable damage level was significantly (p ≤ 0.05) lower in treated grains while progeny production by both insect species was significantly (p ≤ 0.05) reduced. Grain germination of both crops was not affected by the powders. The potential use of P. heudelotii in storage pest management is discussed.

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