Influence of the chlorophylls-to-carotenoids ratio on light use efficiency estimation by optical parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F17%3A00485226" target="_blank" >RIV/86652079:_____/17:00485226 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of the chlorophylls-to-carotenoids ratio on light use efficiency estimation by optical parameters

Popis výsledku v původním jazyce

The influence is examined of changing leaf photosynthetic pigments concentrations on sensitivity of thenphotochemical reflectance index (PRI) and ΔPRI optical parameters in relation to light use efficiencyn(LUE). Photosynthetic and leaf chlorophylls-to-carotenoids (Chl/Car) ratio changes during the growth ofnEuropean Beech (Fagus sylvatica) and Norway spruce (Picea abies) saplings were induced by altering thenliving environment inside growth chambers. Point reflectance measurements of each individual tree werenrecording changes in optical properties while measurements were being taken simultaneously of alteringnphotosynthesis. Based on the evaluation of 45 pairs of measurements conducted on six individual saplings,nthe observed variability in the strength of the PRI and ΔPRI versus LUE relationships was compared to thenresulting leaf Chl/Car ratio of each tree. Data were used to explain the influence of changing pigments onnthe sensitivity of each individual optical parameter with regards to the LUE estimation.

Název v anglickém jazyce

Influence of the chlorophylls-to-carotenoids ratio on light use efficiency estimation by optical parameters

Popis výsledku anglicky

The influence is examined of changing leaf photosynthetic pigments concentrations on sensitivity of thenphotochemical reflectance index (PRI) and ΔPRI optical parameters in relation to light use efficiencyn(LUE). Photosynthetic and leaf chlorophylls-to-carotenoids (Chl/Car) ratio changes during the growth ofnEuropean Beech (Fagus sylvatica) and Norway spruce (Picea abies) saplings were induced by altering thenliving environment inside growth chambers. Point reflectance measurements of each individual tree werenrecording changes in optical properties while measurements were being taken simultaneously of alteringnphotosynthesis. Based on the evaluation of 45 pairs of measurements conducted on six individual saplings,nthe observed variability in the strength of the PRI and ΔPRI versus LUE relationships was compared to thenresulting leaf Chl/Car ratio of each tree. Data were used to explain the influence of changing pigments onnthe sensitivity of each individual optical parameter with regards to the LUE estimation.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10611 - Plant sciences, botany

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Quo vaditis agriculture, forestry and society under global change? Conference proceeding

ISBN

978-80-87902-22-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

58-61

Název nakladatele

Global change research institute

Místo vydání

Brno

Místo konání akce

Velké Karlovice

Datum konání akce

2. 10. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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