Biblioteca Digital de VanguardiaThermal imaging to phenotype traditional maize landraces for drought tolerance
Searching and identification of new crops or varieties with higher adaptation or resistance to water stress is one of the strategies to make agriculture profitable and more sustainable. Especially en arid and semi areas with limiting water resources. This study establishes a practical, fast and repl...
| Autores principales: | , , , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Inglés |
| Publicado: |
Federal University of Piauí
2015
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| Materias: | |
| Acceso en línea: | https://comunicatascientiae.com.br/comunicata/article/view/960 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77747 |
| _version_ | 1782336746898325504 |
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| author | Costa, Joaquim Miguel Tejero, Ivan Francisco Garcia Zuazo, Victor Hugo Duran Lima, Roberta Samara Nunes da Chaves, Maria Manuela Vaz Patto, Maria Carlota |
| author_facet | Costa, Joaquim Miguel Tejero, Ivan Francisco Garcia Zuazo, Victor Hugo Duran Lima, Roberta Samara Nunes da Chaves, Maria Manuela Vaz Patto, Maria Carlota |
| author_sort | Costa, Joaquim Miguel |
| collection | Repositorio |
| description | Searching and identification of new crops or varieties with higher adaptation or resistance to water stress is one of the strategies to make agriculture profitable and more sustainable. Especially en arid and semi areas with limiting water resources. This study establishes a practical, fast and replicable protocol to select maize genotypes for its capability to respond to water stress. Eight Portuguese maize landraces (LD), traditionally grown in areas with different altitude and subjected to potentially different degrees of water stress (low altitude = potentially lower stress; high altitude = potentially higher stress) was used. Seedlings were subjected to continuous watering (FI) or forced to water withholding (non-irrigated) for a period of 7-8 days followed by re-watering (NI). Leaf temperature was determined every 48 h by thermal imaging and the temperature difference between NI and FI plants (ΔTNI-FI) was calculated. We found that those genotypes that traditionally had been grown at higher altitudes kept more stable leaf temperature values under dry or wet conditions (small ΔTNI-FI) even under severe water stress. These results will help to optimize a screening protocol for maize seedlings and select novel genotypes or LDs better adapted to water stress, especially in regions where irrigation water is scarce. |
| format | info:eu-repo/semantics/article |
| id | clacso-CLACSO77747 |
| institution | CLACSO, Repositorio Digital |
| language | Inglés |
| publishDate | 2015 |
| publisher | Federal University of Piauí |
| record_format | greenstone |
| spelling | clacso-CLACSO777472022-03-21T20:07:36Z Thermal imaging to phenotype traditional maize landraces for drought tolerance Thermal imaging to phenotype traditional maize landraces for drought tolerance Costa, Joaquim Miguel Tejero, Ivan Francisco Garcia Zuazo, Victor Hugo Duran Lima, Roberta Samara Nunes da Chaves, Maria Manuela Vaz Patto, Maria Carlota maize genotypes water stress leaf temperature fast plant screening maize genotypes water stress leaf temperature fast plant screening Searching and identification of new crops or varieties with higher adaptation or resistance to water stress is one of the strategies to make agriculture profitable and more sustainable. Especially en arid and semi areas with limiting water resources. This study establishes a practical, fast and replicable protocol to select maize genotypes for its capability to respond to water stress. Eight Portuguese maize landraces (LD), traditionally grown in areas with different altitude and subjected to potentially different degrees of water stress (low altitude = potentially lower stress; high altitude = potentially higher stress) was used. Seedlings were subjected to continuous watering (FI) or forced to water withholding (non-irrigated) for a period of 7-8 days followed by re-watering (NI). Leaf temperature was determined every 48 h by thermal imaging and the temperature difference between NI and FI plants (ΔTNI-FI) was calculated. We found that those genotypes that traditionally had been grown at higher altitudes kept more stable leaf temperature values under dry or wet conditions (small ΔTNI-FI) even under severe water stress. These results will help to optimize a screening protocol for maize seedlings and select novel genotypes or LDs better adapted to water stress, especially in regions where irrigation water is scarce. Searching and identification of new crops or varieties with higher adaptation or resistance to water stress is one of the strategies to make agriculture profitable and more sustainable. Especially en arid and semi areas with limiting water resources. This study establishes a practical, fast and replicable protocol to select maize genotypes for its capability to respond to water stress. Eight Portuguese maize landraces (LD), traditionally grown in areas with different altitude and subjected to potentially different degrees of water stress (low altitude = potentially lower stress; high altitude = potentially higher stress) was used. Seedlings were subjected to continuous watering (FI) or forced to water withholding (non-irrigated) for a period of 7-8 days followed by re-watering (NI). Leaf temperature was determined every 48 h by thermal imaging and the temperature difference between NI and FI plants (ΔTNI-FI) was calculated. We found that those genotypes that traditionally had been grown at higher altitudes kept more stable leaf temperature values under dry or wet conditions (small ΔTNI-FI) even under severe water stress. These results will help to optimize a screening protocol for maize seedlings and select novel genotypes or LDs better adapted to water stress, especially in regions where irrigation water is scarce. 2015-12-29 2022-03-21T20:07:36Z 2022-03-21T20:07:36Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://comunicatascientiae.com.br/comunicata/article/view/960 10.14295/cs.v6i3.960 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77747 eng https://comunicatascientiae.com.br/comunicata/article/view/960/351 https://comunicatascientiae.com.br/comunicata/article/view/960/653 https://comunicatascientiae.com.br/comunicata/article/view/960/680 Copyright (c) 2016 Joaquim Miguel Costa, Ivan Francisco Garcia Tejero, Victor Hugo Duran zuazo, Roberta Samara Nunes da Lima, Maria Manuela Chaves, Maria Carlota Vaz Patto application/pdf application/pdf application/pdf Federal University of Piauí Comunicata Scientiae; Vol. 6 No. 3 (2015); 334-343 Comunicata Scientiae; v. 6 n. 3 (2015); 334-343 2177-5133 2176-9079 10.14295/cs.v6i3 |
| spellingShingle | maize genotypes water stress leaf temperature fast plant screening maize genotypes water stress leaf temperature fast plant screening Costa, Joaquim Miguel Tejero, Ivan Francisco Garcia Zuazo, Victor Hugo Duran Lima, Roberta Samara Nunes da Chaves, Maria Manuela Vaz Patto, Maria Carlota Thermal imaging to phenotype traditional maize landraces for drought tolerance |
| title | Thermal imaging to phenotype traditional maize landraces for drought tolerance |
| title_full | Thermal imaging to phenotype traditional maize landraces for drought tolerance |
| title_fullStr | Thermal imaging to phenotype traditional maize landraces for drought tolerance |
| title_full_unstemmed | Thermal imaging to phenotype traditional maize landraces for drought tolerance |
| title_short | Thermal imaging to phenotype traditional maize landraces for drought tolerance |
| title_sort | thermal imaging to phenotype traditional maize landraces for drought tolerance |
| topic | maize genotypes water stress leaf temperature fast plant screening maize genotypes water stress leaf temperature fast plant screening |
| url | https://comunicatascientiae.com.br/comunicata/article/view/960 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77747 |