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The estimation of the usefulness of Fv/Fm indicator in the early detection of the wild oat (Avena fatua L.) resistance to fenoxaprop and diclofop

100%

Stoklosa A., Skoczowski A., Idzik I., Kiec J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2006

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tom 509

The possibility of the chlorophyll α fluorescence test (maximum quantum efficiency of PS2 photochemistry - Fv/Fm parameter) in the early detection of wild oat resistance to fenoxaprop-P-ethyl and diclofop methyl was examined. Measurements were taken at two terms: 24 and 48 hours from spraying the resistant nad susceptible biotypes of weed with field doses of herbicides: Puma Uniwersal 069 EW and Illoxan 36 EC. The obtained results indicate, that chlorophyll fluorescence test can not be used for an early detection of wild oat (Avena fatua L.) resistance to tested herbicides.

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Changes in the metabolic activity and growth parameters of winter wheat suspension cultures over a period of 9 weeks at low temperature

100%

Janeczko A., Biesaga-Koscielniak J., Idzik I., Skoczowski A.

Acta Physiologiae Plantarum

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2003

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tom 25

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nr 3 suppl.

3

Temperature-dependent impact of 24-epibrassinolide on the fatty acid composition and sugar content in winter oilseed rape callus

76%

Janeczko A., Hura K., Skoczowski A., Idzik I., Biesaga-Koscielniak J., Niemczyk E.

Acta Physiologiae Plantarum

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2009

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tom 31

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nr 1

The aim of this experiment was to study the effect of 24-epibrassinolide (BR₂₇) on fatty acids composition and sugar content in winter oilseed rape callus cultured at 20 and 5°C. Studies have showed that BR₂₇ action is highly temperature-dependent. The increase in sugar content (sucrose, glucose and fructose) by BR₂₇ in concentration 100 nM was observed only in calli cultured at 20°C. At 5°C, quite the opposite effect of BR₂₇ action was observed; where cold increased the sugar content, BR₂₇ decreased it. BR₂₇ at 20°C had a similar effect on the fatty acid composition of phospholipids (PL) as the cold in the process of frost hardening of oilseed rape calli. BR₂₇ decreased the 16:0, 18:1 and 18:2 and increased the 18:3 fatty acid content. At 5°C, BR₂₇ (100 nM) generally did not influence the fatty acid composition of PL. In case of digalactosyl diacylglycerols and monogalactosyl diacylglycerols, the influence of BR₂₇ on the fatty acid composition is ambiguous but still depends on temperature.

Ograniczanie wyników

2 Acta Physiologiae Plantarum

1 Zeszyty Problemowe Postępów Nauk Rolniczych

3 Idzik I.

3 Skoczowski A.

2 Biesaga-Koscielniak J.

2 Janeczko A.

1 Hura K.

1 Kiec J.

1 Niemczyk E.

1 Stoklosa A.

1 2009

1 2006

1 2003

The estimation of the usefulness of Fv/Fm indicator in the early detection of the wild oat (Avena fatua L.) resistance to fenoxaprop and diclofop

Changes in the metabolic activity and growth parameters of winter wheat suspension cultures over a period of 9 weeks at low temperature

Temperature-dependent impact of 24-epibrassinolide on the fatty acid composition and sugar content in winter oilseed rape callus