Interactive effects of PAR and UV radiation on the physiology, morphology and leaf optical properties of two barley varieties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F12%3A00376228" target="_blank" >RIV/67179843:_____/12:00376228 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.envexpbot.2011.08.008" target="_blank" >http://dx.doi.org/10.1016/j.envexpbot.2011.08.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envexpbot.2011.08.008" target="_blank" >10.1016/j.envexpbot.2011.08.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Interactive effects of PAR and UV radiation on the physiology, morphology and leaf optical properties of two barley varieties

Popis výsledku v původním jazyce

The interactive effects of photosynthetically active radiation (PAR) on plants? acclimation to ultraviolet (UV) radiation were examined under field conditions in two barley varieties (Barke, Bonus). Plants, pre-treated under UV exclusion and low PAR intensities, were subsequently exposed to four radiation treatments representing the combination of low [] and high [+] UV and PAR intensities. Selective UV and PAR filters were used for UV exclusion and reduction of PAR to ca 25% of ambient irradiance. A system of modulated lamps was used to enhance UV to ca 200% of ambient. Changes in flavonol and chlorophyll content, chlorophyll fluorescence, gas-exchange and leaf hyperspectral reflectance were studied during seven days of acclimation to the new treatments. At the end of this period morphological analysis of aboveground biomass was carried out. The [UV+PAR] treatment significantly reduced the photosynthetic activity of barley leaves; the reduction was more pronounced in old than young le

Název v anglickém jazyce

Interactive effects of PAR and UV radiation on the physiology, morphology and leaf optical properties of two barley varieties

Popis výsledku anglicky

The interactive effects of photosynthetically active radiation (PAR) on plants? acclimation to ultraviolet (UV) radiation were examined under field conditions in two barley varieties (Barke, Bonus). Plants, pre-treated under UV exclusion and low PAR intensities, were subsequently exposed to four radiation treatments representing the combination of low [] and high [+] UV and PAR intensities. Selective UV and PAR filters were used for UV exclusion and reduction of PAR to ca 25% of ambient irradiance. A system of modulated lamps was used to enhance UV to ca 200% of ambient. Changes in flavonol and chlorophyll content, chlorophyll fluorescence, gas-exchange and leaf hyperspectral reflectance were studied during seven days of acclimation to the new treatments. At the end of this period morphological analysis of aboveground biomass was carried out. The [UV+PAR] treatment significantly reduced the photosynthetic activity of barley leaves; the reduction was more pronounced in old than young le

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental and Experimental Botany

ISSN

0098-8472

e-ISSN

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Svazek periodika

75

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

52-64

Kód UT WoS článku

000298940600007

EID výsledku v databázi Scopus

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