Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp)
The cowpea is the most important legume in the Colombian Caribbean, due to its positive impact on the food and nutritional security of low-income rural families. It is cultivated by small producers, but its yields per hectare do not exceed 600 kg, due to the use of obsolete cultivars. The objective...
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| Format: | Online |
| Language: | eng |
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Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
2020
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| Online Access: | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/10758 |
| _version_ | 1801706287188148224 |
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| author | Araméndiz-Tatis, Hermes Espitia-Camacho, Miguel Cardona-Ayala, Carlos |
| author_facet | Araméndiz-Tatis, Hermes Espitia-Camacho, Miguel Cardona-Ayala, Carlos |
| author_sort | Araméndiz-Tatis, Hermes |
| collection | OJS |
| description | The cowpea is the most important legume in the Colombian Caribbean, due to its positive impact on the food and nutritional security of low-income rural families. It is cultivated by small producers, but its yields per hectare do not exceed 600 kg, due to the use of obsolete cultivars. The objective of the research was to estimate the correlations between seven quantitative characters and the path analysis between grain yield and six quantitative characters, with the results of the evaluation of 10 genotypes of semi-prostrate growth habit, high grain yield, grown in eight environments of the humid and dry tropics of the Colombian Caribbean region, under the randomized complete blocks design, with four repetitions. Significant differences between environments, genotypes and genotype x environment interaction were detected. Genotypic correlations were of greater magnitude than phenotypic, highlighting the correlation between grain width (GW) and grain yield (GY), rP = 0.69 *, rG = 0.78 *, also between the weight of 100 seeds (100SW) and GW, rP = 0.97 **, rG = 0.99 **. The characters GW and number of pods per plant (NPP) had positive direct effects on the GY, with an indirect negative effect of NPP by way of GW, while the height of the first pod (HFP), the number of seeds per pod (NSP) and the 100SW directly and negatively influenced the GY of the 10 semi-prostrate cowpea cultivars. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-10758 |
| institution | Revista Colombiana de Ciencias Hortícolas |
| language | eng |
| publishDate | 2020 |
| publisher | Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-107582021-07-13T03:20:02Z Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) Correlaciones y análisis de sendero para características cuantitativas en genotipos semi-postrados de fríjol caupí (Vigna unguiculata (L.) Walp) Araméndiz-Tatis, Hermes Espitia-Camacho, Miguel Cardona-Ayala, Carlos Genotypes Genotype-environment interaction Direct and indirect effects Quantitative genetics Bean Seeds Plant breeding Genotipos Interacción genotipo-ambiente Efectos directos e indirectos Genética cuantitativa Frijol Semillas Fitomejoramiento The cowpea is the most important legume in the Colombian Caribbean, due to its positive impact on the food and nutritional security of low-income rural families. It is cultivated by small producers, but its yields per hectare do not exceed 600 kg, due to the use of obsolete cultivars. The objective of the research was to estimate the correlations between seven quantitative characters and the path analysis between grain yield and six quantitative characters, with the results of the evaluation of 10 genotypes of semi-prostrate growth habit, high grain yield, grown in eight environments of the humid and dry tropics of the Colombian Caribbean region, under the randomized complete blocks design, with four repetitions. Significant differences between environments, genotypes and genotype x environment interaction were detected. Genotypic correlations were of greater magnitude than phenotypic, highlighting the correlation between grain width (GW) and grain yield (GY), rP = 0.69 *, rG = 0.78 *, also between the weight of 100 seeds (100SW) and GW, rP = 0.97 **, rG = 0.99 **. The characters GW and number of pods per plant (NPP) had positive direct effects on the GY, with an indirect negative effect of NPP by way of GW, while the height of the first pod (HFP), the number of seeds per pod (NSP) and the 100SW directly and negatively influenced the GY of the 10 semi-prostrate cowpea cultivars. El caupí es la leguminosa más importante del Caribe colombiano, por su impacto positive en la seguridad alimentaria y nutricional de las familias rurales de escasos ingresos. Es cultivada por pequeños productores, pero sus rendimientos por hectárea no superan los 600 kg, debido al uso cultivares obsoletos. El objetivo de la investigación fue estimar las correlaciones entre siete características cuantitativas y el análisis de sendero entre el rendimiento de grano y seis características cuantitativas, con los resultados de la evaluación de 10 genotipos de hábito de crecimiento semi-postrado, de alto rendimiento de grano, cultivados en ocho ambientes del trópico húmedo y seco de la región Caribe colombiana, bajo el diseño bloques completos al azar, con 10 tratamientos y cuatro repeticiones. Se detectaron diferencias significativas entre ambientes, genotipos e interacción genotipo x ambiente. Las correlaciones genotípicas fueron de mayor magnitud que las fenotípicas, destacándose la correlación entre el ancho de grano (AG) y el rendimiento de grano (REND), rF=0,69*, rG=0,78*, igualmente entre el peso de 100 semillas (P100S) y el AG, rF=0,97**, rG=0,99**. Los caracteres AG y número de vainas por planta (NVP) presentaron efectos directos positivos sobre el REND, con efecto indirecto negativo de NVP vía AG, mientras que la altura de la primera vaina (AIPV), el número de semillas por vaina (NSPV) y el P100S influyeron directa y negativamente en el REND de los 10 cultivares de caupí. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2020-05-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/10758 10.17584/rcch.2020v14i2.10758 Revista Colombiana de Ciencias Hortícolas; Vol. 14 No. 2 (2020); 216-223 Revista Colombiana de Ciencias Hortícolas; Vol. 14 Núm. 2 (2020); 216-223 Revista Colombiana de Ciencias Hortícolas; Vol. 14 No 2 (2020); 216-223 Revista Colombiana de Ciencias Hortícolas; V. 14 N. 2 (2020); 216-223 Revista Colombiana de Ciencias Hortícolas; v. 14 n. 2 (2020); 216-223 2422-3719 2011-2173 eng https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/10758/9867 Colombia; Monteria Bolivar Guajira Colombia; Monteria Bolivar Guajira Copyright (c) 2020 Revista Colombiana de Ciencias Hortícolas |
| spellingShingle | Genotypes Genotype-environment interaction Direct and indirect effects Quantitative genetics Bean Seeds Plant breeding Genotipos Interacción genotipo-ambiente Efectos directos e indirectos Genética cuantitativa Frijol Semillas Fitomejoramiento Araméndiz-Tatis, Hermes Espitia-Camacho, Miguel Cardona-Ayala, Carlos Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) |
| title | Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) |
| title_alt | Correlaciones y análisis de sendero para características cuantitativas en genotipos semi-postrados de fríjol caupí (Vigna unguiculata (L.) Walp) |
| title_full | Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) |
| title_fullStr | Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) |
| title_full_unstemmed | Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) |
| title_short | Correlations and path analysis for quantitative characteristics in semi-prostrate cowpea bean genotypes (Vigna unguiculata (L.) Walp) |
| title_sort | correlations and path analysis for quantitative characteristics in semi prostrate cowpea bean genotypes vigna unguiculata l walp |
| topic | Genotypes Genotype-environment interaction Direct and indirect effects Quantitative genetics Bean Seeds Plant breeding Genotipos Interacción genotipo-ambiente Efectos directos e indirectos Genética cuantitativa Frijol Semillas Fitomejoramiento |
| topic_facet | Genotypes Genotype-environment interaction Direct and indirect effects Quantitative genetics Bean Seeds Plant breeding Genotipos Interacción genotipo-ambiente Efectos directos e indirectos Genética cuantitativa Frijol Semillas Fitomejoramiento |
| url | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/10758 |
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