Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings

Rangelands play a crucial socioeconomic and environmental role worldwide. In South America, desertification and overgrazing has led to their deterioration and declining productivity. Breeding programs that use native forage species of economic and ecological importance, such as Festuca pallescens (S...

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Main Authors: López, Aldana Soledad, Nagahama, Nicolás, Aparicio, Alejandro Gabriel, Azpilicueta, Maria Marta, Guidalevich, Verónica, Angeli, Juan Pablo, Marchelli, Paula
Format: info:ar-repo/semantics/artículo
Language:Inglés
Published: MDPI 2025
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/21839
https://www.mdpi.com/2223-7747/14/5/736
https://doi.org/10.3390/plants14050736
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author López, Aldana Soledad
Nagahama, Nicolás
Aparicio, Alejandro Gabriel
Azpilicueta, Maria Marta
Guidalevich, Verónica
Angeli, Juan Pablo
Marchelli, Paula
author_browse Angeli, Juan Pablo
Aparicio, Alejandro Gabriel
Azpilicueta, Maria Marta
Guidalevich, Verónica
López, Aldana Soledad
Marchelli, Paula
Nagahama, Nicolás
author_facet López, Aldana Soledad
Nagahama, Nicolás
Aparicio, Alejandro Gabriel
Azpilicueta, Maria Marta
Guidalevich, Verónica
Angeli, Juan Pablo
Marchelli, Paula
author_sort López, Aldana Soledad
collection INTA Digital
description Rangelands play a crucial socioeconomic and environmental role worldwide. In South America, desertification and overgrazing has led to their deterioration and declining productivity. Breeding programs that use native forage species of economic and ecological importance, such as Festuca pallescens (St. Yves) Parodi, may provide locally adapted germplasm that enhances productivity without threatening local biodiversity. These programs may even promote the conservation of native species. To this end, we characterized the phenotypic variation of nondestructive variables (growth and reproductive traits) related to forage and seed production during spring and early summer (growth and reproductive periods). Plants from ten populations were grown under common garden conditions in two environmental settings (sites) over two years. By early summer of the second year, most populations maintained a consistent relative performance with higher values for basal diameter, height and synflorescence production at site 2. This suggests more favorable environmental conditions for the species and highlights their potential for enhancing both seed and forage production. The growth and reproductive traits were probably largely influenced by micro-environmental cues (i.e., soil type and moisture), showing predominantly plastic patterns. The populations displaying phenotypic plasticity and above-average values for both traits were selected for further evaluation in breeding programs.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
language Inglés
publishDate 2025
publishDateRange 2025
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spelling INTA218392025-05-23T12:31:19Z Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings López, Aldana Soledad Nagahama, Nicolás Aparicio, Alejandro Gabriel Azpilicueta, Maria Marta Guidalevich, Verónica Angeli, Juan Pablo Marchelli, Paula Forrajes Producción de Semillas Variación Fenotípica Zona Semiárida Tierras de Pastos Forage Seed Production Phenotypic Variation Semi-arid Zones Rangelands Región Patagónica Rangelands play a crucial socioeconomic and environmental role worldwide. In South America, desertification and overgrazing has led to their deterioration and declining productivity. Breeding programs that use native forage species of economic and ecological importance, such as Festuca pallescens (St. Yves) Parodi, may provide locally adapted germplasm that enhances productivity without threatening local biodiversity. These programs may even promote the conservation of native species. To this end, we characterized the phenotypic variation of nondestructive variables (growth and reproductive traits) related to forage and seed production during spring and early summer (growth and reproductive periods). Plants from ten populations were grown under common garden conditions in two environmental settings (sites) over two years. By early summer of the second year, most populations maintained a consistent relative performance with higher values for basal diameter, height and synflorescence production at site 2. This suggests more favorable environmental conditions for the species and highlights their potential for enhancing both seed and forage production. The growth and reproductive traits were probably largely influenced by micro-environmental cues (i.e., soil type and moisture), showing predominantly plastic patterns. The populations displaying phenotypic plasticity and above-average values for both traits were selected for further evaluation in breeding programs. EEAf Esquel Fil: López, Aldana Soledad. Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB). Facultad de Ciencias Naturales y Ciencias de la Salud. Laboratorio de Bioprospección Aplicada en Plantas y Hongos (LaBIAPH); Argentina Fil: López, Aldana Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Científico Tecnológico Patagonia Sur; Argentina Fil: Nagahama, Nicolás. Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB). Facultad de Ciencias Naturales y Ciencias de la Salud. Laboratorio de Bioprospección Aplicada en Plantas y Hongos (LaBIAPH); Argentina Fil: Nagahama, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Científico Tecnológico Patagonia Norte; Argentina Fil: Nagahama, Nicolás. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; Argentina Fil: Aparicio, Alejandro Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Aparicio, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Azpilicueta, Maria Marta. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Azpilicueta, Maria Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Guidalevich, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Científico Tecnológico Patagonia Norte; Argentina Fil: Guidalevich, Verónica. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina Fil: Angeli, Juan Pablo. Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB). Facultad de Ciencias Naturales y Ciencias de la Salud. Laboratorio de Bioprospección Aplicada en Plantas y Hongos (LaBIAPH); Argentina Fil: Angeli, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Científico Tecnológico Patagonia Norte; Argentina Fil: Angeli, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel; Argentina Fil: Marchelli, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Centro Científico Tecnológico Patagonia Norte; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche (IFAB); Argentina 2025-03-27T13:06:39Z 2025-03-27T13:06:39Z 2025-02-27 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21839 https://www.mdpi.com/2223-7747/14/5/736 2223-7747 https://doi.org/10.3390/plants14050736 eng info:eu-repograntAgreement/INTA/2019-PE-E6-I142-001, Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentina info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Patagonia .......... (general region) (World, South America, Argentina) 7016766 MDPI Plants 14 (5) : 763. (February 2025)
spellingShingle Forrajes
Producción de Semillas
Variación Fenotípica
Zona Semiárida
Tierras de Pastos
Forage
Seed Production
Phenotypic Variation
Semi-arid Zones
Rangelands
Región Patagónica
López, Aldana Soledad
Nagahama, Nicolás
Aparicio, Alejandro Gabriel
Azpilicueta, Maria Marta
Guidalevich, Verónica
Angeli, Juan Pablo
Marchelli, Paula
Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings
title Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings
title_full Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings
title_fullStr Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings
title_full_unstemmed Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings
title_short Genetic variation of growth traits and seed production in a Patagonian native pasture in semiarid rangelands under different environmental settings
title_sort genetic variation of growth traits and seed production in a patagonian native pasture in semiarid rangelands under different environmental settings
topic Forrajes
Producción de Semillas
Variación Fenotípica
Zona Semiárida
Tierras de Pastos
Forage
Seed Production
Phenotypic Variation
Semi-arid Zones
Rangelands
Región Patagónica
url http://hdl.handle.net/20.500.12123/21839
https://www.mdpi.com/2223-7747/14/5/736
https://doi.org/10.3390/plants14050736
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