RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES

RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES

Bean lines (Phaseolus vulgaris) were generated from 31 populations, in similar farmer’s creole bean characteristics, with pink grain color, greater yields, better tolerance to web blight (Thanatephorus cucumeris, (Frank), Donk) and similar precocity. Using an alpha-lattice design for two years the generated bean lines were evaluated. Due to their agronomic characteristics, 500 lines were selected in the first year, and later the best 140 lines. In the second year of the evaluation, the Minimum Significant Difference for yield was 0,5075 and lines with yields higher than 1,1515 t ha-1 exceeded the producer's creole pink variety and surpassing the variety IDIAP R2 with 1,7682 t ha-1. A total of 22 lines resulted with a yield of more than 1,2 t ha-1, statistically outperforming the creole pink. It was calculated the repeatability or heritability that indicates the precision of the experiment and how much is the genetic gain obtained for each evaluated variable, resulting greater for the yield, days to flowering, days to physiological maturity with values of 0,4; 0,94 and 0,95; respectively. These values are considered as medium and high for the precision of the experiment. The content of iron in the lines was analyzed and no line exceeded 75 ppm so that it can be considered as a biofortified line.

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Main Authors: Rodríguez-Quiel, Emigdio, Gordón-Mendoza, Román, González-Guevara, Francisco
Format: Digital revista
Language:spa
Published: Instituto de Innovación Agropecuaria de Panamá 2017
Online Access:http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/67
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spelling oai:ojs.revistacienciaagropecuaria.ac.pa:article-672021-07-06T14:57:35Z RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES RETROCRUZAS ENTRE CULTIVARES DE FRIJOLES PANAMEÑOS Y FUENTES DE ALTO CONTENIDO DE HIERRO Rodríguez-Quiel, Emigdio Gordón-Mendoza, Román González-Guevara, Francisco Bean lines (Phaseolus vulgaris) were generated from 31 populations, in similar farmer’s creole bean characteristics, with pink grain color, greater yields, better tolerance to web blight (Thanatephorus cucumeris, (Frank), Donk) and similar precocity. Using an alpha-lattice design for two years the generated bean lines were evaluated. Due to their agronomic characteristics, 500 lines were selected in the first year, and later the best 140 lines. In the second year of the evaluation, the Minimum Significant Difference for yield was 0,5075 and lines with yields higher than 1,1515 t ha-1 exceeded the producer's creole pink variety and surpassing the variety IDIAP R2 with 1,7682 t ha-1. A total of 22 lines resulted with a yield of more than 1,2 t ha-1, statistically outperforming the creole pink. It was calculated the repeatability or heritability that indicates the precision of the experiment and how much is the genetic gain obtained for each evaluated variable, resulting greater for the yield, days to flowering, days to physiological maturity with values of 0,4; 0,94 and 0,95; respectively. These values are considered as medium and high for the precision of the experiment. The content of iron in the lines was analyzed and no line exceeded 75 ppm so that it can be considered as a biofortified line. Se recibieron 31 poblaciones de frijol común (Phaseolus vulgaris) con el objetivo de generar líneas y/o variedades de frijol poroto con grano de color rosado similar en características a las que utilizan los agricultores, con mayor rendimiento, mejor tolerancia a la mustia hilachosa y una precocidad similar a la variedad criolla. Durante dos años se evaluaron las líneas generadas utilizando un Alfa-Látice para su establecimiento en campo y posterior evaluación. Fueron seleccionadas 500 líneas en el primer año, y posteriormente las mejores 140 líneas, por sus características agronómicas. En el segundo año de evaluación la Diferencia Mínima Significativa para rendimiento fue de 0,5075 y las líneas con rendimiento superior a 1,1515 t ha-1 superaron la variedad rosado o criollo del productor y con 1,7682 t ha-1 superando a la variedad IDIAP R2. Resultaron 22 líneas con un rendimiento mayor a 1,2 t ha-1 superando al rosado criollo estadísticamente. Se calculó la repetitividad o heredabilidad que indica la precisión del experimento y cuanto es la ganancia genética obtenida para cada variable evaluada, siendo mayor para el rendimiento, días a floración, días a madurez fisiológica con valores de 0,4; 0,94 y 0,95; respectivamente. Estos valores son considerados como medios a altos para la precisión del experimento. Se analizó el contenido de hierro en las líneas y ninguna línea superó los 75 ppm para que pueda ser considerada como línea biofortificada. Instituto de Innovación Agropecuaria de Panamá 2017-04-03 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/67 Ciencia Agropecuaria; Núm. 26 (2017); 55-68 2414-3278 0258-6452 spa http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/67/54
institution IDIAP
collection OJS
country Panamá
countrycode PA
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databasecode rev-cienciaagropecuaria
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region America Central
libraryname Centro de Información Documental Agropecuaria
language spa
format Digital
author Rodríguez-Quiel, Emigdio
Gordón-Mendoza, Román
González-Guevara, Francisco
spellingShingle Rodríguez-Quiel, Emigdio
Gordón-Mendoza, Román
González-Guevara, Francisco
RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES
author_facet Rodríguez-Quiel, Emigdio
Gordón-Mendoza, Román
González-Guevara, Francisco
author_sort Rodríguez-Quiel, Emigdio
title RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES
title_short RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES
title_full RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES
title_fullStr RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES
title_full_unstemmed RETRO-BREEDING BETWEEN PANAMANIANS BEANS CULTIVARS AND HIGH-CONTENT IRON SOURCES
title_sort retro-breeding between panamanians beans cultivars and high-content iron sources
description Bean lines (Phaseolus vulgaris) were generated from 31 populations, in similar farmer’s creole bean characteristics, with pink grain color, greater yields, better tolerance to web blight (Thanatephorus cucumeris, (Frank), Donk) and similar precocity. Using an alpha-lattice design for two years the generated bean lines were evaluated. Due to their agronomic characteristics, 500 lines were selected in the first year, and later the best 140 lines. In the second year of the evaluation, the Minimum Significant Difference for yield was 0,5075 and lines with yields higher than 1,1515 t ha-1 exceeded the producer's creole pink variety and surpassing the variety IDIAP R2 with 1,7682 t ha-1. A total of 22 lines resulted with a yield of more than 1,2 t ha-1, statistically outperforming the creole pink. It was calculated the repeatability or heritability that indicates the precision of the experiment and how much is the genetic gain obtained for each evaluated variable, resulting greater for the yield, days to flowering, days to physiological maturity with values of 0,4; 0,94 and 0,95; respectively. These values are considered as medium and high for the precision of the experiment. The content of iron in the lines was analyzed and no line exceeded 75 ppm so that it can be considered as a biofortified line.
publisher Instituto de Innovación Agropecuaria de Panamá
publishDate 2017
url http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/67
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