Wyniki wyszukiwania

1

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).

2

Microstructure and chemical composition of leaf cuticular waxes in two Salix species and their hybrid

67%

Szafranek B., Tomaszewski D., Pokrzywinska K., Golebiowski M.

Acta Biologica Cracoviensia. Series Botanica

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2008

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tom 50

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nr 2

49-54

Leaf epicuticular wax morphology and chemical composition of total cuticular waxes were studied in two Salix species (Salix alba and S.fragilis) and their hybrid (S. x rubens). A smooth wax layer with small, scattered wax structures covered the adaxial leaf surface in all three taxa, and a crustlike wax layer composed of terminally fused wax filaments was present on the abaxial surface. The leaf cuticular waxes, both epicuticular and intracuticular, were obtained by hot extraction in chloroform and then analyzed by gas chromatography and mass spectrometry. The principal components of the waxes were primary alcohols, fatty acids, aldehydes, n-alkanes and wax esters. The qualitative composition of the waxes was quite similar but there were quantitative differences between the taxa. The epicuticular crystalline waxes are composed of very-long-chain aldehyde polymers.

3

Zróżnicowanie liści buraka ćwikłowego a właściwości cieczy użytkowej na ich powierzchni

59%

Ratajkiewicz H., Kierzek R., Wachowiak M., Skopiasz D.

Progress in Plant Protection

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2010

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tom 50

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nr 4

In laboratory experiments were evaluated: wetability, pH and retention on beetroot leaves (green, with amaranth tone, with powdery mildew). Static surface tension of a spray liquids was also determinated. Experiments were conducted with two fungicides (Domark 100 EC – tetraconazole and Bravo Plus 500 SC – chlorothalonil) and two adjuvants Atpolan 80 EC and Break Thrue S 240. It was concluded that properties of leaf surface can significantly change spray liquid properties of agrochemicals on leaf lamina. Wetability and pH of spray liquid on beetroot leaves differed depending on colour of a leaf lamina and on powdery mildew fungus. pH of spray liquid on leaf lamina might influence efficacy of fungicides mixed with adjuvants used to beetroot protection against Cercospora leaf spot.

4

Morphological characters of fruits and seeds of some Arabidopsis thaliana transparent testa [tt] mutants

51%

Karcz J., Miszta A.

Acta Biologica Silesiana

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1997

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tom 31

56-65

Ograniczanie wyników

1 Acta Biologica Cracoviensia. Series Botanica

1 Acta Biologica Silesiana

1 Herba Polonica

1 Progress in Plant Protection

1 Golebiowski M.

1 Halinski L. P.

1 Karcz J.

1 Kierzek R.

1 Miszta A.

1 Pokrzywinska K.

1 Ratajkiewicz H.

1 Skopiasz D.

1 Szafranek B.

1 Szafranek B. M.

1 Tomaszewski D.

1 Wachowiak M.

1 2010

1 2008

1 2006

1 1997

Cuticular waxes from potato leaves - evaluation of extractions methods

Microstructure and chemical composition of leaf cuticular waxes in two Salix species and their hybrid

Zróżnicowanie liści buraka ćwikłowego a właściwości cieczy użytkowej na ich powierzchni

Morphological characters of fruits and seeds of some Arabidopsis thaliana transparent testa [tt] mutants