Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia
In our study, we analyzed 30years of climatological data revealing the bean production risks for Western Amazonia. Climatological profiling showed high daytime and nighttime temperatures combined with high relative humidity and low vapor pressure deficit. Our understanding of the target environment...
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2022
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| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/11707 |
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RepoCATIE117072022-08-05T16:57:26Z Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia Suárez, Juan C Urban, Milan O Contreras, Amara T Noriega, Jhon E Deva, Chetan Beebe, Stephen E Polanía, José A Casanoves, Fernando Rao, Idupulapati M SUELO ÁCIDO CLIMATOLOGÍA FRIJOL TOLERANCIA AL CALOR HUMEDAD RELATIVA SEMILLAS CULTIVOS TIPOLOGÍA AMAZONIA Sede Central ODS 13 - Acción por el clima In our study, we analyzed 30years of climatological data revealing the bean production risks for Western Amazonia. Climatological profiling showed high daytime and nighttime temperatures combined with high relative humidity and low vapor pressure deficit. Our understanding of the target environment allows us to select trait combinations for reaching higher yields in Amazonian acid soils. Our research was conducted using 64 bean lines with different genetic backgrounds. In high temperatures, we identified three water use efficiency typologies in beans based on detailed data analysis on gasometric exchange. Profligate water spenders and not water conservative accessions showed leaf cooling, and effective photosynthate partitioning to seeds, and these attributes were found to be related to higher photosynthetic efficiency. Thus, water spenders and not savers were recognized as heat resistant in acid soil conditions in Western Amazonia. Genotypes such as BFS 10, SEN 52, SER 323, different SEFs (SEF 73, SEF 10, SEF 40, SEF 70), SCR 56, SMR 173, and SMN 99 presented less negative effects of heat stress on yield. These genotypes could be suitable as parental lines for improving dry seed production. The improved knowledge on water-use efficiency typologies can be used for bean crop improvement efforts as well as further studies aimed at a better understanding of the intrinsic mechanisms of heat resistance in legumes. 2022-03-29T19:10:26Z 2022-03-29T19:10:26Z 2021 Artículo https://repositorio.catie.ac.cr/handle/11554/11707 openAccess en Front. Plant Sci, 12:644010 https://doi.org/10.3389/fpls.2021.644010 18 páginas application/pdf |
| institution |
Centro Agronómico Tropical de Investigación y Enseñanza |
| collection |
Repositorio CATIE |
| language |
Inglés |
| topic |
SUELO ÁCIDO CLIMATOLOGÍA FRIJOL TOLERANCIA AL CALOR HUMEDAD RELATIVA SEMILLAS CULTIVOS TIPOLOGÍA AMAZONIA Sede Central ODS 13 - Acción por el clima |
| spellingShingle |
SUELO ÁCIDO CLIMATOLOGÍA FRIJOL TOLERANCIA AL CALOR HUMEDAD RELATIVA SEMILLAS CULTIVOS TIPOLOGÍA AMAZONIA Sede Central ODS 13 - Acción por el clima Suárez, Juan C Urban, Milan O Contreras, Amara T Noriega, Jhon E Deva, Chetan Beebe, Stephen E Polanía, José A Casanoves, Fernando Rao, Idupulapati M Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia |
| description |
In our study, we analyzed 30years of climatological data revealing the bean production risks for Western Amazonia. Climatological profiling showed high daytime and nighttime temperatures combined with high relative humidity and low vapor pressure deficit. Our understanding of the target environment allows us to select trait combinations for reaching higher yields in Amazonian acid soils. Our research was conducted using 64 bean lines with different genetic backgrounds. In high temperatures, we identified three water use efficiency typologies in beans based on detailed data analysis on gasometric exchange. Profligate water spenders and not water conservative accessions showed leaf cooling, and effective photosynthate partitioning to seeds, and these attributes were found to be related to higher photosynthetic efficiency. Thus, water spenders and not savers were recognized as heat resistant in acid soil conditions in Western Amazonia. Genotypes such as BFS 10, SEN 52, SER 323, different SEFs (SEF 73, SEF 10, SEF 40, SEF 70), SCR 56, SMR 173, and SMN 99 presented less negative effects of heat stress on yield. These genotypes could be suitable as parental lines for improving dry seed production. The improved knowledge on water-use efficiency typologies can be used for bean crop improvement efforts as well as further studies aimed at a better understanding of the intrinsic mechanisms of heat resistance in legumes. |
| format |
Artículo |
| author |
Suárez, Juan C Urban, Milan O Contreras, Amara T Noriega, Jhon E Deva, Chetan Beebe, Stephen E Polanía, José A Casanoves, Fernando Rao, Idupulapati M |
| author_facet |
Suárez, Juan C Urban, Milan O Contreras, Amara T Noriega, Jhon E Deva, Chetan Beebe, Stephen E Polanía, José A Casanoves, Fernando Rao, Idupulapati M |
| author_sort |
Suárez, Juan C |
| title |
Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia |
| title_short |
Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia |
| title_full |
Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia |
| title_fullStr |
Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia |
| title_full_unstemmed |
Water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western Amazonia |
| title_sort |
water use, leaf cooling and carbon assimilation efficiency of heat resistant common beans evaluated in western amazonia |
| publishDate |
2022 |
| url |
https://repositorio.catie.ac.cr/handle/11554/11707 |
| work_keys_str_mv |
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1808117584111861760 |