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Statements

Subject Item
n2:RIV%2F62156489%3A43510%2F14%3A00232492%21RIV15-MZE-43510___
rdf:type
skos:Concept n11:Vysledek
dcterms:description
This study evaluated the effect of water supply on some physiological processes of leek (Allium porrum L. 'Giante Suito') and pepper (Capsicum annuum L. 'Slávy F1') plants, at two different irrigation levels: 1. optimal water supply: available water content (AWC) decreased below 65%; 2. drought stress: AWC decreased below 45%. Transpiration, photosynthetic activity and water use efficiency was measured by a portable infrared gas exchange analyzer (LCpro+). The first vegetation period (2010) was characterized by lower average temperature, higher air humidity, and less sunny hours than the second period (2011). In the case of pepper, in the first part of the vegetation period transpiration was more intensive under stress condition. However, in the second part the average transpiration of stressed plants was lower than that of plants under optimal water supply. The transpiration of leek was more intensive in the optimal irrigation treatment than under drought stress. The highest average transpiration of pepper and leek was similar (pepper: 2.01, leek: 1.97 mmol m-2 s-1). For both species the negative effect of drought stress on photosynthetic activity was observed on most measuring dates. The highest difference between the photosynthetic rate values in stress and optimal water supply was observed in leek, in the last measuring date of 2011 (optimum: 5.56, stress: 2.60 micro mol m-2 s-1). Water use efficiency (WUE) of leek leaves was higher under stress in the second part of season in 2010, and in whole season in 2011. In case of pepper the positive effect of drought stress on the WUE was observed only in the second (warmer and dryer) experimental year. This study evaluated the effect of water supply on some physiological processes of leek (Allium porrum L. 'Giante Suito') and pepper (Capsicum annuum L. 'Slávy F1') plants, at two different irrigation levels: 1. optimal water supply: available water content (AWC) decreased below 65%; 2. drought stress: AWC decreased below 45%. Transpiration, photosynthetic activity and water use efficiency was measured by a portable infrared gas exchange analyzer (LCpro+). The first vegetation period (2010) was characterized by lower average temperature, higher air humidity, and less sunny hours than the second period (2011). In the case of pepper, in the first part of the vegetation period transpiration was more intensive under stress condition. However, in the second part the average transpiration of stressed plants was lower than that of plants under optimal water supply. The transpiration of leek was more intensive in the optimal irrigation treatment than under drought stress. The highest average transpiration of pepper and leek was similar (pepper: 2.01, leek: 1.97 mmol m-2 s-1). For both species the negative effect of drought stress on photosynthetic activity was observed on most measuring dates. The highest difference between the photosynthetic rate values in stress and optimal water supply was observed in leek, in the last measuring date of 2011 (optimum: 5.56, stress: 2.60 micro mol m-2 s-1). Water use efficiency (WUE) of leek leaves was higher under stress in the second part of season in 2010, and in whole season in 2011. In case of pepper the positive effect of drought stress on the WUE was observed only in the second (warmer and dryer) experimental year.
dcterms:title
Effect of different water supply on transpiration and water use efficiency of leek and sweet pepper Effect of different water supply on transpiration and water use efficiency of leek and sweet pepper
skos:prefLabel
Effect of different water supply on transpiration and water use efficiency of leek and sweet pepper Effect of different water supply on transpiration and water use efficiency of leek and sweet pepper
skos:notation
RIV/62156489:43510/14:00232492!RIV15-MZE-43510___
n3:aktivita
n12:P
n3:aktivity
P(QH81110)
n3:dodaniDat
n16:2015
n3:domaciTvurceVysledku
n18:3301206 n18:8025754
n3:druhVysledku
n17:D
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
13237
n3:idVysledku
RIV/62156489:43510/14:00232492
n3:jazykVysledku
n13:eng
n3:klicovaSlova
drought stress; transpiration rate; optimal water supply; photosynthetic rate
n3:klicoveSlovo
n9:photosynthetic%20rate n9:drought%20stress n9:optimal%20water%20supply n9:transpiration%20rate
n3:kontrolniKodProRIV
[430AE8581969]
n3:mistoKonaniAkce
Geisenheim, Germany
n3:mistoVydani
Leuven
n3:nazevZdroje
Acta Horticulturae
n3:obor
n19:GC
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n10:QH81110
n3:rokUplatneniVysledku
n16:2014
n3:tvurceVysledku
Jezdinský, Aleš Pokluda, Robert
n3:typAkce
n4:WRD
n3:zahajeniAkce
2012-07-16+02:00
s:numberOfPages
8
n20:hasPublisher
International Society for Horticultural Science
n15:isbn
978-94-6261-026-2
n6:organizacniJednotka
43510