Photosynthetic performance of two maize genotypes as affected by chilling stress
The effect of chilling on light dependence of photosynthetic and chlorophyll a fluorescence characteristics in two maize genotypes CE 704 and CE 810 grown in a glasshouse during spring and autumn was studied. In spring, the net photosynthetic rate (PN) of CE 704 plants was not affected by chilling u...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2005-05-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-200505-0002_photosynthetic-performance-of-two-maize-genotypes-as-affected-by-chilling-stress.php |
| _version_ | 1797898359640424448 |
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| author | K. Kosová D. Haisel I. Tichá |
| author_facet | K. Kosová D. Haisel I. Tichá |
| author_sort | K. Kosová |
| collection | DOAJ |
| description | The effect of chilling on light dependence of photosynthetic and chlorophyll a fluorescence characteristics in two maize genotypes CE 704 and CE 810 grown in a glasshouse during spring and autumn was studied. In spring, the net photosynthetic rate (PN) of CE 704 plants was not affected by chilling under moderate irradiance but it was strongly affected under a saturating one. This indicates that efficiency of photosynthetic apparatus was not affected by chilling but its capacity was decreased. Contrary to CE 704, CE 810 plants were not affected by chilling under saturating irradiance. In autumn, CE 704 plants adapted to chilling and no statistically significant differencies in PN and Fv/Fm between chilled and control plants in the whole range of irradiance were found. Enhanced activity of non-photochemical quenching (NPQ) in chilled CE 704 plants under saturating irradiance corresponded with an increased level of xanthophyll cycle pigments and an increased deepoxidation state of these pigments. |
| first_indexed | 2024-04-10T08:13:10Z |
| format | Article |
| id | doaj.art-91c78fe4da3f401f97c7fd38ad7365e7 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:13:10Z |
| publishDate | 2005-05-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-91c78fe4da3f401f97c7fd38ad7365e72023-02-23T03:45:06ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682005-05-0151520621210.17221/3575-PSEpse-200505-0002Photosynthetic performance of two maize genotypes as affected by chilling stressK. Kosová0D. Haisel1I. Tichá2Department of Plant Physiology, Faculty of Science, Charles University in Prague, Czech RepublicInstitute of Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech RepublicDepartment of Plant Physiology, Faculty of Science, Charles University in Prague, Czech RepublicThe effect of chilling on light dependence of photosynthetic and chlorophyll a fluorescence characteristics in two maize genotypes CE 704 and CE 810 grown in a glasshouse during spring and autumn was studied. In spring, the net photosynthetic rate (PN) of CE 704 plants was not affected by chilling under moderate irradiance but it was strongly affected under a saturating one. This indicates that efficiency of photosynthetic apparatus was not affected by chilling but its capacity was decreased. Contrary to CE 704, CE 810 plants were not affected by chilling under saturating irradiance. In autumn, CE 704 plants adapted to chilling and no statistically significant differencies in PN and Fv/Fm between chilled and control plants in the whole range of irradiance were found. Enhanced activity of non-photochemical quenching (NPQ) in chilled CE 704 plants under saturating irradiance corresponded with an increased level of xanthophyll cycle pigments and an increased deepoxidation state of these pigments.https://pse.agriculturejournals.cz/artkey/pse-200505-0002_photosynthetic-performance-of-two-maize-genotypes-as-affected-by-chilling-stress.phpmaize (zea mays l.)genotypechillinglight dependence of photosynthetic characteristicsnet photosynthetic rate (pn)chlorophyll a fluorescencephotosynthetic pigmentsgrowth |
| spellingShingle | K. Kosová D. Haisel I. Tichá Photosynthetic performance of two maize genotypes as affected by chilling stress Plant, Soil and Environment maize (zea mays l.) genotype chilling light dependence of photosynthetic characteristics net photosynthetic rate (pn) chlorophyll a fluorescence photosynthetic pigments growth |
| title | Photosynthetic performance of two maize genotypes as affected by chilling stress |
| title_full | Photosynthetic performance of two maize genotypes as affected by chilling stress |
| title_fullStr | Photosynthetic performance of two maize genotypes as affected by chilling stress |
| title_full_unstemmed | Photosynthetic performance of two maize genotypes as affected by chilling stress |
| title_short | Photosynthetic performance of two maize genotypes as affected by chilling stress |
| title_sort | photosynthetic performance of two maize genotypes as affected by chilling stress |
| topic | maize (zea mays l.) genotype chilling light dependence of photosynthetic characteristics net photosynthetic rate (pn) chlorophyll a fluorescence photosynthetic pigments growth |
| url | https://pse.agriculturejournals.cz/artkey/pse-200505-0002_photosynthetic-performance-of-two-maize-genotypes-as-affected-by-chilling-stress.php |
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