Gas exchange and chlorophyll fluorescence of four sorghum genotypes under drought stress and rehydratation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F24%3A100087" target="_blank" >RIV/60460709:41210/24:100087 - isvavai.cz</a>
Result on the web
<a href="https://pse.agriculturejournals.cz/artkey/pse-202409-0002_gas-exchange-and-chlorophyll-fluorescence-of-four-sorghum-genotypes-under-drought-stress-and-rehydratation.php" target="_blank" >https://pse.agriculturejournals.cz/artkey/pse-202409-0002_gas-exchange-and-chlorophyll-fluorescence-of-four-sorghum-genotypes-under-drought-stress-and-rehydratation.php</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/292/2024-PSE" target="_blank" >10.17221/292/2024-PSE</a>
Alternative languages
Result language
angličtina
Original language name
Gas exchange and chlorophyll fluorescence of four sorghum genotypes under drought stress and rehydratation
Original language description
Water deficit (drought) is an important environmental factor affecting physiological processes in plants. The present work focuses on the study of changes in physiological responses of juvenile plants (plants in the vegetative phase of growth BBCH 14-16) of selected sorghum genotypes Dokok, 30485, Barnard Red and Ruzrok to water deficit and after rehydration. Water deficit affected the observed physiological parameters- gas exchange and chlorophyll fluorescence. Genotypic differences were also confirmed, with Dokok appearing to be the more sensitive genotype and Ruzrok and Barnard Red appearing to be tolerant. Following rehydration, these parameters increased but did not reach the levels of the control plants. A significant decrease in photosynthetic rate (P n ), transpiration (E) and fluorescence compared to the control was found in the water-deficient variant twice for 10 days and 6 days between rehydration periods. Only in the variant where water deficit (14 days) was followed by irrigation (10 days) transpiration increased in genotype 30485. Chlorophyll fluorescence (F v /F m ) also decreased significantly in this cultivar. The results suggest that a rehydration period of 14 days is insufficient to restore the photosynthetic functions of stressed sorghum plants.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40101 - Agriculture
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant, Soil and Environment
ISSN
1214-1178
e-ISSN
1214-1178
Volume of the periodical
70
Issue of the periodical within the volume
9
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
9
Pages from-to
543-551
UT code for WoS article
001295684500001
EID of the result in the Scopus database
2-s2.0-85203150961