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The effect of drought stress on wettability of barley leaf surface

100%

Lukowska M.

Acta Agrophysica

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2015

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tom 22

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nr 3

The aim of the study was to determine the changes of plant surface wettability caused by environmental drought stress. Two Polish cultivars of spring barley (Hordeum vulgare) Poldek and Stratus were tested. The low soil moisture was stabilised at pF 3.5 while the control soil moisture at pF 2.2. The wettability was determined by water contact angle. The measurements were performed on fresh leaves before and after washing in chloroform. Generally, drought led to hydrophobisation of the surface of plant leaves. The use of chloroform caused greater changes in contact angle values for stressed than for control plants, but this reaction was variety-specific and leaf-age dependent.

2

Penetration of fluvalinate into bee-products

100%

Kubik M., Nowacki J., Michalczuk L., Pidek A., Marcinkowski J.

Journal of Fruit and Ornamental Plant Research

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1995

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tom 03

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nr 1

3

Cuticular waxes from potato leaves - evaluation of extractions methods

100%

Halinski L. P., Szafranek B. M.

Herba Polonica

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2006

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tom 52

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nr 4

The optimal times for the extraction of potato cuticular waxes with dichloromethane were established for three classes of compounds, namely 40 sec for alcohols and fatty acids, and 60 sec for alkanes, which is sufficient to isolate at least ca. 90% of wax components. A two-step extraction using two consecutive portions of a solvent ensured better recovery (ca. 94%) than a one-step procedure (49V60ÜS).

4

Mechano-sorptive creep of Portuguese pinewood chemically modified

84%

Lopes D. B., Mai C.

Folia Forestalia Polonica. Series A . Forestry

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2014

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tom 56

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nr 1

The effect of chemical modification on mechano-sorptive creep in bending was studied by experimental work. Stakes with 20 × 20 × 400 mm RTL of Portuguese wood species (Pinus pinaster Aiton) modified with 1,3-dimethylol-4,5- dihydroxyethyleneurea (DMDHEU), m-methylated melamine resin (MMF), tetraethoxysilane (TEOS) and amid wax (WA) were measured under asymmetric moistening conditions over a period of 42 days (app. 1000 hours) with stress level (SL) of 12 MPa, according to ENV 1156. The cell wall treatments (DMDHEU and MMF resins) had shown significant reduction of creep (creep factors, kc) when compared to untreated wood under similar conditions. Both types of resins and levels of treatments (different WPG) did not shown significant effects. In the lumen fill treatments, deposit material of TEOS did not affected the creep behaviour (kc); Wax treatment was shown a particular compliance of creep due to avoid exchange moisture (by the hydrophobic effect of wax). The anti-creep efficiency (ACE) correlated better than other mechanical or physical properties imparted by the modification process.

5

Sequences of epicuticular wax structures along stems in four selected tree species

84%

Tomaszewski D., Zielinski J.

Biodiversity: Research and Conservation

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2014

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tom 35

6

Watermelon epicuticle changes related to friction test parameters

84%

Puchalski C., Brusewitz G. H.

International Agrophysics

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2000

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tom 14

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nr 1

7

Penetration of fluvalinate into bee products. II. The role of fluvalinate vapour

84%

Kubik M., Nowacki J., Marcinkowski J., Pidek A., Michalczuk L.

Journal of Fruit and Ornamental Plant Research

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1996

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tom 04

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nr 2

8

An influence of contemporary oil coatings on the aesthetical properties and abrasion resistance of oak wood parquets

67%

Slusarczyk K., Rozanska A.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2020

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tom 111

9

Secondary plant compounds may serve as biopesticides for the grain aphid Sitobion avenae F.

67%

Wojcicka A., Leszczynski B.

Pestycydy

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2005

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nr 4

163-170

10

The effect of mechanical treatment of beech wood surface on quality of surface finish

67%

Slabejova G., Smidriakova M.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2019

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tom 106

11

Oleożele – perspektywy ich wykorzystania w żywności

67%

Zbikowska A., Kupiec M., Marciniak-Lukasiak K., Kowalska M.

Żywność Nauka Technologia Jakość

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2017

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tom 24

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nr 3

Celem pracy był przegląd danych literaturowych dotyczących tłuszczów strukturyzowanych różnymi żelifikatorami oraz przedstawienie możliwości wykorzystania oleożeli w produktach spożywczych. Technologia otrzymywania żeli lipidowych określana jest mianem oleożelacji. Jest to technika fizyczna niepozostawiającą odpadów. Organożele powstają w wyniku przemian zachodzących pod wpływem wysokiej temperatury. Żelifikatory są substancjami, które umożliwiają wytworzenie oleożeli z tłuszczów ciekłych. Dzięki swoim właściwościom żelującym strukturyzują one oleje roślinne lub rybne, które bardzo często mają korzystny żywieniowo profil kwasów tłuszczowych. W ten sposób uzyskują one delikatną strukturę ciała stałego. Modyfikowane celulozy (np. etyloceluloza) czy lipidy (np. monoacyloglicerole, wosk carnauba i candelilla) są dozwolonymi substancjami dodatkowymi, które mogłyby być wykorzystane do wytwarzania jadalnych oleożeli. Według danych zawartych w literaturze naukowej perspektywy wykorzystania olejów strukturyzowanych w przemyśle spożywczym są obiecujące. W zależności od rodzaju frakcji lipidowej i substancji strukturyzujących, oleożele mogą znaleźć zastosowanie jako składniki tłuszczowe w różnych produktach spożywczych. Mogą być one np. alternatywą dla typowych tłuszczów stosowanych w produkcji wyrobów ciastkarskich czy cukierniczych i dzięki temu mogą stanowić prozdrowotną alternatywę dla tłuszczów bogatych w niepożądane żywieniowo nasycone kwasy tłuszczowe (KT) czy izomery trans KT. Ponadto obecność oleożeli w żywności, np. w czekoladach nadziewanych, mogłaby zapobiec procesowi migracji składników olejowych i zapewnić jej wysoką jakość i niezmienność w trakcie przechowywania.

12

The influence of lead on structure of Cucumis sativus L. leaves

67%

Chwil M.

Folia Horticulturae

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2005

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tom 17

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nr 2

13

Changes in content of triticale phenolics induced by cereal aphids

67%

Wojcicka A.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2008

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tom 524

Changes in total phenols and o-dihydroxyphenols concentration in seedlings of waxy and wax-less winter triticale hybrids under the grain aphid, Sitobion avenae F. and the bird cherry-oat aphid, Rhopalosiphum padi L. infestation were studied. Results revealed an inverse correlation between the concentration of the phenolics in aphid-infested triticale plants and the growth and development of the aphid species on seedlings of different age. Moreover, both studied aphids induced a decrease in phenolics level within seedlings of the studied hybrids. Association between concentration of the studied phenolics and thickness of the epicuticular wax layer in triticale hybrids and their stress reaction on the grain aphid and bird cherry-oat aphid feeding is discussed.

14

Preliminary report on epicuticular wax surface condition on stomata of Abies alba Mill. needles from Risnjak National Park in Croatia

67%

Bacic T., Popovic Z.

Acta Biologica Cracoviensia. Series Botanica

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1998

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tom 40

The structure of epicuticular wax on the stomata surface in both very young and one-year-old fir needles from Risnjak National Park in Croatia were examined with a scanning electron microscope. The stomata surface is first covered with wax crystalloids in the form of rodlets. In the course of time the rodlets become fused and agglomerated into amorphous wax crusts; this process begins very early. In addition to wax crystalloid quantitative estimation indicates a relatively large total amount of amorphous wax in very young needles (~20 days) and a very high percentage of amorphous wax crusts in one-year-old needles. Wax crusts cover stomatal pores in addition to the rims, making normal gas exchange impossible. The early start of wax degradation may be interpreted as a possible result of air pollution.

15

Differences in the structure of fruit buds in two apple cultivars with particular emphasis on features responsible for fruit storability and quality

59%

Konarska A.

Acta Scientiarum Polonorum. Hortorum Cultus

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2014

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tom 13

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nr 5

‘Jonagold’ and ‘Szampion’ are winter apple cultivars, whose fruits are suitable for long-term storage. However, fruits of these cultivars differ markedly in the type of the surface and the rate and volume of water transpiration, which is manifested in fruit quality after storage and the length of apple shelf life. A majority of factors responsible for fruit quality and storability are genetically conditioned traits that are mainly developed before fruits reach harvest maturity or still develop during the storage period. The micromorphology, anatomy, and ultrastructure of 21-day-old fruit buds of the ‘Jonagold’ and ‘Szampion’ were examined using light microscopy as well as scanning and transmission electron microscopy. The analyses were particularly focused on the traits that determine fruit firmness and storability, which contribute to long-term storage capacity. It was found that the fruit buds in both cultivars differed significantly in the number of trichome scars and stomata on the fruit surface, the thickness of the hypodermis layer and the hypodermis cell walls, and in the content of phenolic compound deposits. At the fruit bud stage, the following features related to increased or decreased fruit firmness and storability were observed: platelet crystalline wax, cuticle microcracks, stomata and trichome scars, and presence of phenolic compounds.

Ograniczanie wyników

The effect of drought stress on wettability of barley leaf surface

Penetration of fluvalinate into bee-products

Cuticular waxes from potato leaves - evaluation of extractions methods

Mechano-sorptive creep of Portuguese pinewood chemically modified

Sequences of epicuticular wax structures along stems in four selected tree species

Watermelon epicuticle changes related to friction test parameters

Penetration of fluvalinate into bee products. II. The role of fluvalinate vapour

An influence of contemporary oil coatings on the aesthetical properties and abrasion resistance of oak wood parquets

Secondary plant compounds may serve as biopesticides for the grain aphid Sitobion avenae F.

The effect of mechanical treatment of beech wood surface on quality of surface finish

Oleożele – perspektywy ich wykorzystania w żywności

The influence of lead on structure of Cucumis sativus L. leaves

Changes in content of triticale phenolics induced by cereal aphids

Preliminary report on epicuticular wax surface condition on stomata of Abies alba Mill. needles from Risnjak National Park in Croatia

Differences in the structure of fruit buds in two apple cultivars with particular emphasis on features responsible for fruit storability and quality