Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).

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Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae). Trichloris crinita and T. pluriflora are important native forage species with the potential to be domesticated and introduced to cultivation, but there is scarce basic information on their reproductive biology. The aim of this w...

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Autores principales: Gutiérrez, Hugo Francisco, Richard, Geraldina Alicia, Cerino, Maria Carolina
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2016
Materias:
Trichloris
Éxito reproductivo
Autopolinización
Peso de frutos.
Reproductive success
Self-pollination
Fruit weight.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/14421
Aporte de:
Boletín de la Sociedad Argentina de Botánica de Universidad Nacional de Córdoba
id I10-R325-article-14421
record_format ojs
spelling I10-R325-article-144212020-03-09T17:58:54Z Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae). Sistema Reproductivo de Trichloris (Poaceae, Chloridoideae, Chlorideae) Gutiérrez, Hugo Francisco Richard, Geraldina Alicia Cerino, Maria Carolina Trichloris Éxito reproductivo Autopolinización Peso de frutos. Trichloris Reproductive success Self-pollination Fruit weight. Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae). Trichloris crinita and T. pluriflora are important native forage species with the potential to be domesticated and introduced to cultivation, but there is scarce basic information on their reproductive biology. The aim of this work was to determine the reproductive system of both plant species in populations coming from north-central Argentina. The following was proposed: 1) determine the reproductive system through the fruit/flower ratio under controlled pollination, 2) quantify the weight of the fruits produced by population under different treatments and 3) confirm or discard the presence of apomixis through embryological observations. In T. crinita, the average fruit/flower ratio was 92.4 ± 6.6%, while in T. pluriflora, it was 70.7 ± 9.9%. These results are consistent with self-compatible species, preferably self-pollinated ones. Embryo sac development indicates sexual origin of seeds in both species. Significant differences in the average weight of one hundred fruits among populations and treatments, in both species, were found. The fruits were lighter in self-pollination. The information presented is a contribution to the tasks of selection and introduction to the culture of both species as well as to the conservation and regeneration of the collected germplasm. Trichloris crinita y T. pluriflora constituyen importantes forrajeras nativas con potencialidades de ser domesticadas e introducidas al cultivo, pero es escasa la información básica sobre su biología reproductiva. El objetivo de este trabajo fue determinar el sistema reproductivo de ambas especies en poblaciones provenientes del centro-norte de Argentina. Se propuso: 1) establecer el sistema reproductivo a través de la relación fruto/flor en polinizaciones controladas, 2) cuantificar el peso de los frutos producidos, por población, bajo diferentes tratamientos y, 3) confirmar o descartar la presencia de apomixis a través de observaciones embriológicas. En T. crinita, la relación fruto/flor promedio fue de 92,4 ± 6,6%, mientras que en T. pluriflora, fue de 70,7 ± 9,9%. Estos resultados se corresponden con especies autocompatibles, preferentemente autógamas. El desarrollo del saco embrionario indica origen sexual de las semillas en ambas especies. Se hallaron diferencias significativas en el peso promedio de cien cariopsis entre poblaciones y entre tratamientos, en ambas especies. Los frutos fueron más livianos en autopolinización. La información que se presenta es un aporte a las tareas de selección e introducción al cultivo como también a la conservación y regeneración del germoplasma recolectado. Sociedad Argentina de Botánica 2016-04-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/14421 10.31055/1851.2372.v51.n1.14421 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 51 No. 1 (2016): March; 111-122 Boletín de la Sociedad Argentina de Botánica; Vol. 51 Núm. 1 (2016): Marzo; 111-122 Boletín de la Sociedad Argentina de Botánica; v. 51 n. 1 (2016): Marzo; 111-122 1851-2372 0373-580X 10.31055/1851.2372.v51.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/14421/14451 Derechos de autor 2016 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-325
container_title_str Boletín de la Sociedad Argentina de Botánica
language Español
format Artículo revista
topic Trichloris
Éxito reproductivo
Autopolinización
Peso de frutos.
Trichloris
Reproductive success
Self-pollination
Fruit weight.
spellingShingle Trichloris
Éxito reproductivo
Autopolinización
Peso de frutos.
Trichloris
Reproductive success
Self-pollination
Fruit weight.
Gutiérrez, Hugo Francisco
Richard, Geraldina Alicia
Cerino, Maria Carolina
Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).
topic_facet Trichloris
Éxito reproductivo
Autopolinización
Peso de frutos.
Trichloris
Reproductive success
Self-pollination
Fruit weight.
author Gutiérrez, Hugo Francisco
Richard, Geraldina Alicia
Cerino, Maria Carolina
author_facet Gutiérrez, Hugo Francisco
Richard, Geraldina Alicia
Cerino, Maria Carolina
author_sort Gutiérrez, Hugo Francisco
title Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).
title_short Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).
title_full Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).
title_fullStr Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).
title_full_unstemmed Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae).
title_sort reproductive system of trichloris (poaceae, chloridoideae, chlorideae).
description Reproductive system of Trichloris (Poaceae, Chloridoideae, Chlorideae). Trichloris crinita and T. pluriflora are important native forage species with the potential to be domesticated and introduced to cultivation, but there is scarce basic information on their reproductive biology. The aim of this work was to determine the reproductive system of both plant species in populations coming from north-central Argentina. The following was proposed: 1) determine the reproductive system through the fruit/flower ratio under controlled pollination, 2) quantify the weight of the fruits produced by population under different treatments and 3) confirm or discard the presence of apomixis through embryological observations. In T. crinita, the average fruit/flower ratio was 92.4 ± 6.6%, while in T. pluriflora, it was 70.7 ± 9.9%. These results are consistent with self-compatible species, preferably self-pollinated ones. Embryo sac development indicates sexual origin of seeds in both species. Significant differences in the average weight of one hundred fruits among populations and treatments, in both species, were found. The fruits were lighter in self-pollination. The information presented is a contribution to the tasks of selection and introduction to the culture of both species as well as to the conservation and regeneration of the collected germplasm.
publisher Sociedad Argentina de Botánica
publishDate 2016
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/14421
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first_indexed 2024-09-03T22:48:33Z
last_indexed 2024-09-03T22:48:33Z
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