Photosynthetic activity as an indicator of drought stress in vegetables
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F16%3A43910371" target="_blank" >RIV/62156489:43510/16:43910371 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.17660/ActaHortic.2016.1112.6" target="_blank" >http://dx.doi.org/10.17660/ActaHortic.2016.1112.6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17660/ActaHortic.2016.1112.6" target="_blank" >10.17660/ActaHortic.2016.1112.6</a>
Alternative languages
Result language
angličtina
Original language name
Photosynthetic activity as an indicator of drought stress in vegetables
Original language description
This study evaluated the correlation between actual photosynthetic activity 'A' and irrigation level in selected vegetable species: leek (Allium porrum L. 'Gigante Suizo'), pepper (Capsicum annuum L. 'slávy F1'), and tomato (Lycopersicon lycopersicum (L.) Karsten 'Proton'), lettuce (Lactuca sativa L. var. capitata L. 'Major') and onion (Allium cepa L. 'Alice'). Onion was irrigated when the available water content (AWC) decreased below 50%. Photosynthetic activity of plants was determined before and after irrigation. Other model plants were grown at two different irrigation levels: 1) optimal; minimum of 65% AWC and 2) reduced (stressed); minimum of 45% AWC. Photosynthetic activity of plants grown under optimum and reduced irrigation levels, were evaluated within the same phenological stage. Plants evaluated in the stressed treatment were exposed to one week of drought period. The intensity of photosynthesis 'A' was determined using a portable gas exchange analyzer (LCpro+). In the case of onion, lettuce, tomato and leek, the intensity of photosynthesis 'A' was substantially lower, irrespective of the developmental stage and the level of soil AWC at the time of measurement. Decrease of the AWC level under 29% led to decrease of intensity of photosynthesis 'A' in pepper crop. The highest variability in the intensity of photosynthesis (affected by drought) was observed in the leek and the lowest observed in lettuce plants under water stress conditions.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
GC - Plant growing, crop rotation
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/QH81110" target="_blank" >QH81110: Improvement of vegetables resistance to water stress</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Acta Horticulturae 1112
ISBN
978-94-6261-106-1
ISSN
0567-7572
e-ISSN
—
Number of pages
6
Pages from-to
39-44
Publisher name
International Society for Horticultural Science
Place of publication
Leuven
Event location
Brisbane
Event date
Aug 17, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000391239000006