Evaluating Native germplasm for extensive green roof systems for semiarid regions

Extensive green roofs (EGR) spaces constitute harsh and stressful growing environments, and consequently a limited range of plants species that can be routinely used there. The habitat template hypothesis suggests that EGR can be analogous as natural environments, what makes native plants as an alt...

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Main Authors: Natalia Cáceres, Lelia Imhof, Mario Suárez, Emmanuel Hick, Leonardo Galetto
Format: Article
Language:English
Published: Sociedade Brasileira de Floricultura e Plantas Ornamentais 2018-12-01
Series:Ornamental Horticulture
Subjects:
Online Access:https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/1225
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author Natalia Cáceres
Lelia Imhof
Mario Suárez
Emmanuel Hick
Leonardo Galetto
author_facet Natalia Cáceres
Lelia Imhof
Mario Suárez
Emmanuel Hick
Leonardo Galetto
author_sort Natalia Cáceres
collection DOAJ
description Extensive green roofs (EGR) spaces constitute harsh and stressful growing environments, and consequently a limited range of plants species that can be routinely used there. The habitat template hypothesis suggests that EGR can be analogous as natural environments, what makes native plants as an alternative for these conditions. This paper aimed to assess the potential use of 15 native plants from Córdoba Province (Argentina) for green roofs, based on cover ability, survived rates and health status observations during a period of 414 days. Sedum acre L. was used as the control. Glandularia x hybrid, Phyla nodiflora (L.) Greene, Melica macra Nees, Eustachys retusa (Lag.) Kunth and Grindelia cabrerae Ariza kept up a 60% of coverage during all the period of study. The first two species had an outperformed green coverage (at 72th day; 95% and 98% respectively) in relation to the control species (Sedum acre; 87%). Eustachys retusa and Grindelia cabrerae grew progressively and kept their coverage constant proximally to 65%. Sedum acre, Grindelia cabrerae, Hysterionica jasionoides Willd, Melica macra, Phyla nodiflora, stood out in plant survival rates; but S. acre suffered changes in health status throughout the evaluation period, especially with low temperatures or at high humidity conditions. It is necessary to underline the reseeding potential of Eustachys retusa, a process that could guarantee perpetuation of the species on EGR.
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spelling doaj.art-89ced86f017641378181c2db6214a2372023-06-22T20:34:59ZengSociedade Brasileira de Floricultura e Plantas OrnamentaisOrnamental Horticulture2447-536X2018-12-0124410.14295/oh.v24i4.12251998Evaluating Native germplasm for extensive green roof systems for semiarid regionsNatalia Cáceres0Lelia Imhof1Mario Suárez2Emmanuel Hick3Leonardo Galetto4Laboratorio de Recursos Genéticos y Sustentabilidad Bioclimática, Instituto de Recursos Naturales y Sustentabilidad José Sánchez Labrador- Universidad Católica de Córdoba (IRNASUS-CONICET-UCC) Córdoba, ArgentinaLaboratorio de Recursos Genéticos y Sustentabilidad Bioclimática, Instituto de Recursos Naturales y Sustentabilidad José Sánchez Labrador- Universidad Católica de Córdoba (IRNASUS-CONICET-UCC) Córdoba, ArgentinaLaboratorio de Recursos Genéticos y Sustentabilidad Bioclimática, Instituto de Recursos Naturales y Sustentabilidad José Sánchez Labrador- Universidad Católica de Córdoba (IRNASUS-CONICET-UCC) Córdoba, ArgentinaLaboratorio de Recursos Genéticos y Sustentabilidad Bioclimática, Instituto de Recursos Naturales y Sustentabilidad José Sánchez Labrador- Universidad Católica de Córdoba (IRNASUS-CONICET-UCC) Córdoba, ArgentinaDepartamento de Diversidad Biológica y Ecología, Universidad Nacional de Córdoba e Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET) Córdoba, Argentina Extensive green roofs (EGR) spaces constitute harsh and stressful growing environments, and consequently a limited range of plants species that can be routinely used there. The habitat template hypothesis suggests that EGR can be analogous as natural environments, what makes native plants as an alternative for these conditions. This paper aimed to assess the potential use of 15 native plants from Córdoba Province (Argentina) for green roofs, based on cover ability, survived rates and health status observations during a period of 414 days. Sedum acre L. was used as the control. Glandularia x hybrid, Phyla nodiflora (L.) Greene, Melica macra Nees, Eustachys retusa (Lag.) Kunth and Grindelia cabrerae Ariza kept up a 60% of coverage during all the period of study. The first two species had an outperformed green coverage (at 72th day; 95% and 98% respectively) in relation to the control species (Sedum acre; 87%). Eustachys retusa and Grindelia cabrerae grew progressively and kept their coverage constant proximally to 65%. Sedum acre, Grindelia cabrerae, Hysterionica jasionoides Willd, Melica macra, Phyla nodiflora, stood out in plant survival rates; but S. acre suffered changes in health status throughout the evaluation period, especially with low temperatures or at high humidity conditions. It is necessary to underline the reseeding potential of Eustachys retusa, a process that could guarantee perpetuation of the species on EGR. https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/1225habitat templatesnative taxaperformanceplant coverroofscape.
spellingShingle Natalia Cáceres
Lelia Imhof
Mario Suárez
Emmanuel Hick
Leonardo Galetto
Evaluating Native germplasm for extensive green roof systems for semiarid regions
Ornamental Horticulture
habitat templates
native taxa
performance
plant cover
roofscape.
title Evaluating Native germplasm for extensive green roof systems for semiarid regions
title_full Evaluating Native germplasm for extensive green roof systems for semiarid regions
title_fullStr Evaluating Native germplasm for extensive green roof systems for semiarid regions
title_full_unstemmed Evaluating Native germplasm for extensive green roof systems for semiarid regions
title_short Evaluating Native germplasm for extensive green roof systems for semiarid regions
title_sort evaluating native germplasm for extensive green roof systems for semiarid regions
topic habitat templates
native taxa
performance
plant cover
roofscape.
url https://ornamentalhorticulture.emnuvens.com.br/rbho/article/view/1225
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AT leliaimhof evaluatingnativegermplasmforextensivegreenroofsystemsforsemiaridregions
AT mariosuarez evaluatingnativegermplasmforextensivegreenroofsystemsforsemiaridregions
AT emmanuelhick evaluatingnativegermplasmforextensivegreenroofsystemsforsemiaridregions
AT leonardogaletto evaluatingnativegermplasmforextensivegreenroofsystemsforsemiaridregions