Photosynthesis-Related Responses of Colombian Elite Hevea brasiliensis Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon

The objective of this study was to evaluate photosynthetic performance based on gas exchange traits, chlorophyll a fluorescence, and leaf water potential (ΨL) in nine Hevea brasiliensis genotypes from the ECC-1 (Élite Ca...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Armando Sterling, Lised Guaca-Cruz, Edwin Andrés Clavijo-Arias, Natalia Rodríguez-Castillo, Juan Carlos Suárez
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rubber tree elite genotypes photosynthetic performance leaf gas exchange chlorophyll <i>a</i> fluorescence leaf water potential Botany QK1-989
Acceso en línea:	https://doaj.org/article/972316dd39cd481f80116846643a0319
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:972316dd39cd481f80116846643a0319
record_format	dspace
spelling	oai:doaj.org-article:972316dd39cd481f80116846643a03192021-11-25T18:45:19ZPhotosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon10.3390/plants101123202223-7747https://doaj.org/article/972316dd39cd481f80116846643a03192021-10-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2320https://doaj.org/toc/2223-7747The objective of this study was to evaluate photosynthetic performance based on gas exchange traits, chlorophyll <i>a</i> fluorescence, and leaf water potential (<i>Ψ<sub>L</sub></i>) in nine <i>Hevea brasiliensis</i> genotypes from the ECC-1 (Élite Caquetá Colombia) selection and the cultivar IAN 873 (control) in response to different climatic (semi-humid warm and humid warm climates), seasonal (dry and rainy periods), and hourly (3:00 to 18:00) variations that can generate stress in the early growth stage (two-year-old plants) in two large-scale clonal trials in the Colombian Amazon. The photosynthetic performance in 60% of the Colombian genotypes was slightly affected under the conditions with less water availability (dry period, semi-humid warm site, and between 9:00 and 15:00 h), as compared with IAN 873, whose affectation was moderate in terms of photosynthesis rates, but its water conservation strategy was strongly affected. The ECC 90, ECC 83, and ECC 73 genotypes had the best photosynthetic performance under conditions of greater water limitation, and ECC 35, and ECC 64 had a higher water status based on the leaf water potential, with intermediate photosynthetic performance. This germplasm has a high potential for selection in rubber tree breeding programs in future scenarios of climate change in the Colombian Amazon.Armando SterlingLised Guaca-CruzEdwin Andrés Clavijo-AriasNatalia Rodríguez-CastilloJuan Carlos SuárezMDPI AGarticlerubber treeelite genotypesphotosynthetic performanceleaf gas exchangechlorophyll <i>a</i> fluorescenceleaf water potentialBotanyQK1-989ENPlants, Vol 10, Iss 2320, p 2320 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rubber tree elite genotypes photosynthetic performance leaf gas exchange chlorophyll <i>a</i> fluorescence leaf water potential Botany QK1-989
spellingShingle	rubber tree elite genotypes photosynthetic performance leaf gas exchange chlorophyll <i>a</i> fluorescence leaf water potential Botany QK1-989 Armando Sterling Lised Guaca-Cruz Edwin Andrés Clavijo-Arias Natalia Rodríguez-Castillo Juan Carlos Suárez Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon
description	The objective of this study was to evaluate photosynthetic performance based on gas exchange traits, chlorophyll <i>a</i> fluorescence, and leaf water potential (<i>Ψ<sub>L</sub></i>) in nine <i>Hevea brasiliensis</i> genotypes from the ECC-1 (Élite Caquetá Colombia) selection and the cultivar IAN 873 (control) in response to different climatic (semi-humid warm and humid warm climates), seasonal (dry and rainy periods), and hourly (3:00 to 18:00) variations that can generate stress in the early growth stage (two-year-old plants) in two large-scale clonal trials in the Colombian Amazon. The photosynthetic performance in 60% of the Colombian genotypes was slightly affected under the conditions with less water availability (dry period, semi-humid warm site, and between 9:00 and 15:00 h), as compared with IAN 873, whose affectation was moderate in terms of photosynthesis rates, but its water conservation strategy was strongly affected. The ECC 90, ECC 83, and ECC 73 genotypes had the best photosynthetic performance under conditions of greater water limitation, and ECC 35, and ECC 64 had a higher water status based on the leaf water potential, with intermediate photosynthetic performance. This germplasm has a high potential for selection in rubber tree breeding programs in future scenarios of climate change in the Colombian Amazon.
format	article
author	Armando Sterling Lised Guaca-Cruz Edwin Andrés Clavijo-Arias Natalia Rodríguez-Castillo Juan Carlos Suárez
author_facet	Armando Sterling Lised Guaca-Cruz Edwin Andrés Clavijo-Arias Natalia Rodríguez-Castillo Juan Carlos Suárez
author_sort	Armando Sterling
title	Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon
title_short	Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon
title_full	Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon
title_fullStr	Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon
title_full_unstemmed	Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon
title_sort	photosynthesis-related responses of colombian elite <i>hevea brasiliensis</i> genotypes under different environmental variations: implications for new germplasm selection in the amazon
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/972316dd39cd481f80116846643a0319
work_keys_str_mv	AT armandosterling photosynthesisrelatedresponsesofcolombianeliteiheveabrasiliensisigenotypesunderdifferentenvironmentalvariationsimplicationsfornewgermplasmselectionintheamazon AT lisedguacacruz photosynthesisrelatedresponsesofcolombianeliteiheveabrasiliensisigenotypesunderdifferentenvironmentalvariationsimplicationsfornewgermplasmselectionintheamazon AT edwinandresclavijoarias photosynthesisrelatedresponsesofcolombianeliteiheveabrasiliensisigenotypesunderdifferentenvironmentalvariationsimplicationsfornewgermplasmselectionintheamazon AT nataliarodriguezcastillo photosynthesisrelatedresponsesofcolombianeliteiheveabrasiliensisigenotypesunderdifferentenvironmentalvariationsimplicationsfornewgermplasmselectionintheamazon AT juancarlossuarez photosynthesisrelatedresponsesofcolombianeliteiheveabrasiliensisigenotypesunderdifferentenvironmentalvariationsimplicationsfornewgermplasmselectionintheamazon
_version_	1718410788611293184

Photosynthesis-Related Responses of Colombian Elite <i>Hevea brasiliensis</i> Genotypes under Different Environmental Variations: Implications for New Germplasm Selection in the Amazon

Ejemplares similares