| Revista: | Scientia Agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000455451 |
| ISSN: | 0103-9016 |
| Autores: | Morillo Coronado, Ana Cruz1 Manjarres Hernández, Elsa Helena1 Morillo Coronado, Yacenia2 |
| Instituciones: | 1Universidad Pedagógica y Tecnológica de Colombia, Facultad de Ciencias Agropecuarias, Tunja, Boyacá. Colombia 2Universidad Nacional de Colombia, Corporación Colombiana de Investigación Agropecuaria, Palmira, Valle del Cauca. Colombia |
| Año: | 2022 |
| Volumen: | 79 |
| Número: | 4 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Chenopodium quinoa Willd. is an Andean crop with great nutritional value, economic potential, and a broad genetic and phenotypic diversity with adaptation to different conditions. In Colombia, C. quinoa is cultivated mainly in Cundinamarca, Nariño and Boyacá, where studies have been conducted to characterize the germplasm and lack of seed materials, some challenges for the quinoa crop. This work assessed agromorphological characteristics of 50 quinoa genotypes from the germplasm collection of Boyacá the using a completely randomized design on the farm in Tunja. The multivariate analysis followed by a clustering approach were conducted on agromorphological descriptors, in which 16 were qualitative descriptors (e.g, panicle shape, episperm color, leaf shape) and five quantitative descriptors (e.g, plant height, panicle number). The results showed that higher coefficients of variation were found in characteristics associated to yield. The principal component analysis (PCA) of the quantitative variables showed that the first two components explained 88 % of the total variation with the characteristics of plant height, length, diameter, and panicle number showing the highest variability. The quantitative characteristic clusters comprised length and diameter panicle, weight 1,000 seeds, and plant height, while the qualitative characteristic clusters comprised stem shape, branching habit, panicle shape, and color of the axils. The factorial analysis of mixed data discriminated the materials with outstanding morphoagronomic characteristics. Agromorphological characterization revealed a broad variability, which should be conserved and used in genetic improvement programs of C. quinoa |
| Disciplinas: | Agrociencias, Biología |
| Palabras clave: | Plantas para uso industrial, Genética, Quinoa, Chenopodium quinoa, Variabilidad fenotípica, Diversidad genética, Germoplasma, Colombia |
| Keyword: | Plants for industrial use, Genetics, Quinua, Chenopodium quinoa, Germplasm, Colombia, Phenotypic variability, Genetic diversity |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
