Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes

Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes

Rubus glaucus is widely distributed throughout the three mountain ranges of Colombia, where the blackberry growers have highlighted the need to standardize the supply of planting material, starting with plant breeding schemes that lead to more productive varieties with morphological characteristics that ease agricultural activities. Plant breeding activities have improved by considering the pollination mechanisms of plants. The implementation of controlled sexual hybridization depends on these pollination mechanisms, and several plant breeding methods have been adapted to crop pollination patterns. Morphological characteristics and studies on the floral biology of R. glaucus Benth were conducted to improve plant breeding processes. In addition, a study on pollen viability and stigma receptivity were performed. The reported morphological characteristics of R. glaucus enabled characterization of its flowers as complete and perfect with a regular, actinomorphic, perianth heterochlamydeous, dialipetalous, and dialisepalous structure. Meanwhile, the evaluation of different collection times for pollen viability revealed significant differences. The highest pollen viability occurred at 10:00 am, followed by 9:00 am. Qualitative evaluation of stigma receptivity led to the conclusion that the highest stigma receptivity is at anthesis at 12:00 m.

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Main Authors: López Gutiérrez, Ana María, Marulanda Angel, Marta Leonor, Gómez López, Lina María, Barrera Sánchez, Carlos Felipe
Format: Digital revista
Language:eng
Published: Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias 2019
Online Access:https://revistas.unal.edu.co/index.php/refame/article/view/75910
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institution UNAL
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country Colombia
countrycode CO
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libraryname Sistema Nacional de Bibliotecas de la UNAL
language eng
format Digital
author López Gutiérrez, Ana María
Marulanda Angel, Marta Leonor
Gómez López, Lina María
Barrera Sánchez, Carlos Felipe
spellingShingle López Gutiérrez, Ana María
Marulanda Angel, Marta Leonor
Gómez López, Lina María
Barrera Sánchez, Carlos Felipe
Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes
author_facet López Gutiérrez, Ana María
Marulanda Angel, Marta Leonor
Gómez López, Lina María
Barrera Sánchez, Carlos Felipe
author_sort López Gutiérrez, Ana María
title Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes
title_short Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes
title_full Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes
title_fullStr Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes
title_full_unstemmed Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes
title_sort rubus glaucus benth.: morphology and floral biology aimed at plant breeding processes
description Rubus glaucus is widely distributed throughout the three mountain ranges of Colombia, where the blackberry growers have highlighted the need to standardize the supply of planting material, starting with plant breeding schemes that lead to more productive varieties with morphological characteristics that ease agricultural activities. Plant breeding activities have improved by considering the pollination mechanisms of plants. The implementation of controlled sexual hybridization depends on these pollination mechanisms, and several plant breeding methods have been adapted to crop pollination patterns. Morphological characteristics and studies on the floral biology of R. glaucus Benth were conducted to improve plant breeding processes. In addition, a study on pollen viability and stigma receptivity were performed. The reported morphological characteristics of R. glaucus enabled characterization of its flowers as complete and perfect with a regular, actinomorphic, perianth heterochlamydeous, dialipetalous, and dialisepalous structure. Meanwhile, the evaluation of different collection times for pollen viability revealed significant differences. The highest pollen viability occurred at 10:00 am, followed by 9:00 am. Qualitative evaluation of stigma receptivity led to the conclusion that the highest stigma receptivity is at anthesis at 12:00 m.
publisher Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias
publishDate 2019
url https://revistas.unal.edu.co/index.php/refame/article/view/75910
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spelling oai:www.revistas.unal.edu.co:article-759102020-01-02T18:10:16Z Rubus glaucus Benth.: morphology and floral biology aimed at plant breeding processes Rubus glaucus Benth.: morfología y biología floral dirigida a procesos de fitomejoramiento López Gutiérrez, Ana María Marulanda Angel, Marta Leonor Gómez López, Lina María Barrera Sánchez, Carlos Felipe Andean blackberry androecium gynoecium viability Mora de los Andes androceo gineceo viabilidad Rubus glaucus is widely distributed throughout the three mountain ranges of Colombia, where the blackberry growers have highlighted the need to standardize the supply of planting material, starting with plant breeding schemes that lead to more productive varieties with morphological characteristics that ease agricultural activities. Plant breeding activities have improved by considering the pollination mechanisms of plants. The implementation of controlled sexual hybridization depends on these pollination mechanisms, and several plant breeding methods have been adapted to crop pollination patterns. Morphological characteristics and studies on the floral biology of R. glaucus Benth were conducted to improve plant breeding processes. In addition, a study on pollen viability and stigma receptivity were performed. The reported morphological characteristics of R. glaucus enabled characterization of its flowers as complete and perfect with a regular, actinomorphic, perianth heterochlamydeous, dialipetalous, and dialisepalous structure. Meanwhile, the evaluation of different collection times for pollen viability revealed significant differences. The highest pollen viability occurred at 10:00 am, followed by 9:00 am. Qualitative evaluation of stigma receptivity led to the conclusion that the highest stigma receptivity is at anthesis at 12:00 m. La especie Rubus glaucus, está distribuida en las tres cordilleras de Colombia, donde los productores asociados de mora en Colombia, han destacado la necesidad de formalizar la oferta de materiales de siembra, iniciando con esquemas de fitomejoramiento que conduzcan a obtener variedades más productivas, con características morfológicas que faciliten las actividades agrícolas. El tener en cuenta los mecanismos de polinización en plantas, ha hecho más eficiente las actividades de fitomejoramiento. La implementación de una hibridación sexual controlada depende de los mecanismos de polinización, incluso varios métodos de mejoramiento en plantas se han ajustado a los patrones de polinización del cultivo. Con el fin de avanzar en un futuro, en procesos de fitomejoramiento para la especie Rubus glaucus Benth, se realizaron las descripciones morfológicas y estudios sobre la biología floral de la especie mencionada, además del estudio de viabilidad del polen y la receptividad del estigma. Las descripciones morfológicas realizadas para R. glaucus en esta investigación, permitieron caracterizar la flor de R. glaucus, como completa y perfecta, con una estructura actinomorfa regular y periantada, heteroclamídea, dialipétala y dialisépala. Entre tanto, se encontraron diferencias significativas al evaluar diferentes horas de viabilidad polínica. Encontrando que, la mayor viabilidad del polen se obtenía a las 10:00 horas, seguido por el tratamiento de las 9:00 horas. Las evaluaciones cualitativas de receptividad del estigma permitieron concluir que, el estado de mayor receptividad del estigma es el de antesis y la hora de mayor receptividad es a las 12 horas del día. Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias 2019-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/xml https://revistas.unal.edu.co/index.php/refame/article/view/75910 10.15446/rfnam.v72n1.75910 Revista Facultad Nacional de Agronomía Medellín; Vol. 72 No. 3 (2019); 8909-8915 Revista Facultad Nacional de Agronomía Medellín; Vol. 72 Núm. 3 (2019); 8909-8915 Revista Facultad Nacional de Agronomía Medellín; v. 72 n. 3 (2019); 8909-8915 2248-7026 0304-2847 eng https://revistas.unal.edu.co/index.php/refame/article/view/75910/72096 https://revistas.unal.edu.co/index.php/refame/article/view/75910/72759 Copyright (c) 2019 Revista Facultad Nacional de Agronomía Medellín https://creativecommons.org/licenses/by-nc-sa/4.0

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