Evaluation of the physiological quality of quinoa seeds

Jojoa, Wilson Anchico; Peixoto, José Ricardo; Spehar, Carlos Roberto; Vilela, Michelle Souza; Fagioli, Marcelo; Nóbrega, Daiane da Silva; Cruz, João Carlos Ribeiro; Oliveira, Antônio Carlos de

doi:10.5897/ajar2020.15099

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…This condition favored natural hybridization. The progenies of Aurora, Piartal, and Syetetuba produced seeds with good quality, as measured by the high percentage of germination, as reported by Jojoa et al (2021). Additionally, they showed a similar cycle (number of days to flowering and maturity), allowing synchrony in plant stages, including flowering, as reported in studies on calculation of thermal accumulation in these genotypes (Anchico-Jojoa et al 2021).…”

Section: Resultssupporting

confidence: 65%

Hybridization between progenies and agronomic characterization of the F2 generation in quinoa

Anchico-Jojoa,

Peixoto,

Spehar

2023

Crop Breed. Appl. Biotechnol.

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Quinoa is a self-pollinating species with very small flowers, which hinders efficiency in crossbreeding. Therefore, developing an efficient crossbreeding method should be considered an important step for breeding programs. In this regard, the objective of this study was to obtain hybrids, estimate the rate of natural hybridization, and estimate genetic parameters and agronomic characteristics of the F 2 generation. Crossbreeding assays were set up in three environments with four parents, using two methodologies, pot planting and field planting. Morphological markers were used to identify the hybrids, which were self-pollinated to obtain the F 2 generation. The results indicated that cross-pollination ranged from 3.81% to 19.88% depending on the planting methodology. The presence of pigmentation was dominant compared to its absence. The most prominent hybrid was obtained from the cross P88 x BX4, showing grain yield of 3000 kg ha -1 . Broad-sense heritability was identified with values exceeding 81.27% for all variables.

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Section: Resultssupporting

confidence: 65%

Hybridization between progenies and agronomic characterization of the F2 generation in quinoa

Anchico-Jojoa,

Peixoto,

Spehar

2023

Crop Breed. Appl. Biotechnol.

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Agronomic characterization and interaction of genotype by environment of quinoa under conditions of Brazil and Colombia

Anchico-Jojoa,

Peixoto,

Oliveira Júnior

2023

Hortic. Bras.

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Quinoa is a highly adaptable crop due to its considerable genetic variability, making it an important trait for cultivation under different soil and climatic conditions. To achieve crop-wide adaptation, it is essential to identify variability based on morpho-agronomic differences and genotype x environment (GxE) interaction. This study aimed to characterize eight quinoa progenies in Brazil and Colombia. The experiments in Brazil were conducted in an irrigated area of the Fazenda Água Limpa, Universidade de Brasília, at 1,100 m, on two dates: March to July 2018 and May to August 2019. In Colombia, experiments were carried out in Santander de Quilichao and Popayán at 1,100 and 1,800 m, respectively. The treatments consisted of five progenies selected in Brazil, one from Colombia, and two from Ecuador. The experiments followed a complete randomized block design, with eight progenies and four replications. For statistical analysis, the F test was used with p≤0.01 and p≤0.05. Means were grouped by the Scott-Knott test. The AMMI (Additive Main effects and Multiplicative Interaction) analysis was performed, combining analysis of variance and analysis of principal components, to adjust the main effects of genotypes (G) and environments (E) and the GxE interaction. Significant differences were found at p≤0.01 and p≤0.05 for environments, genotypes, and the interaction of GxE. The progenies with wide adaptation to environments were BRX2, BRX5, BRX6 (selected from BRS Syetetuba) and PRIX (selected from Piartal), with average yields above 3,151.95 kg/ha. The genotypes showed differences at the same location in different periods, expressing the need to carry out selection for specific periods and locations. Genotypes BRX5 and BRX6 showed high agronomic potential in all evaluated environments, being promising for future genetic improvement programs.

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Caracterización físico-química y capacidad antioxidante de progenies de quinua originarias de Colombia, Brasil y Ecuador producidas en la Sabana Brasileña

Jojoa

Peixoto

Júnior

2023

Rev. Colomb. Cienc. Hortic

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En la agroindustria, la quinua es considerada un alimento funcional para por sus beneficios para la salud. Sin embargo, es necesario identificar genotipos que proporcionen mejores características fisicoquímicas y alta capacidad antioxidante para la selección en los programas de mejoramiento genético. Este trabajo tuvo como objetivo evaluar la composición fisicoquímica y la capacidad antioxidante de genotipos de quinua originarios de Brasil, Colombia y Ecuador cultivados en condiciones de la Sabana Brasileña (Cerrado). La siembra se llevó a cabo en la Hacienda Agua Limpa de la Facultad de Agronomía y Medicina Veterinaria de la Universidad de Brasilia, ubicada a 15º56' S y 47º55' O, a una altitud de 1.100 m. El análisis fisicoquímico se realizó en año 2021 en el Centro de Investigación de Alimentos de la Universidad de Passo Fondo, Río Grande do Sul, y el análisis de capacidad antioxidante se realizó en la Universidad de Santiago de Chile. Se determinó el contenido de humedad, cenizas, proteínas, carbohidratos (CHO), fibra bruta, lípidos y capacidad antioxidante. Los datos originales fueron sometidos a análisis de varianza, mediante la prueba F (P≤0,05), y la comparación de medias por la prueba de Tukey. Se realizarón análisis de correlación lineal (Fischer) (P≤0,01) y (P≤0,05), y análisis de agrupación jerárquico por el método Ward. Los genotipos presentaron variabilidad en las características fisicoquímicas y actividad antioxidante. Los CHO fueron los compuestos mayoritarios presentes en las semillas, mostrando un promedio de 50,16%, el promedio de proteína fue del 15,27%, con mayores resultados para el genotipo P88 (16,28%). El contenido promedio de lípidos, fibra y cenizas fueron 3,24; 14,13 y 6,0%, respectivamente. Los CHO mostraron una correlación positiva con el parámetro lipídico (r=0,858) y una correlación negativa significativa con la proteína (r=-0,785). El cultivar Aurora expresó una mayor actividad antioxidante (1,96±0,01 mg Trolox/g).

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Evaluation of the physiological quality of quinoa seeds

Cited by 3 publications

References 20 publications

Hybridization between progenies and agronomic characterization of the F2 generation in quinoa

Hybridization between progenies and agronomic characterization of the F2 generation in quinoa

Agronomic characterization and interaction of genotype by environment of quinoa under conditions of Brazil and Colombia

Caracterización físico-química y capacidad antioxidante de progenies de quinua originarias de Colombia, Brasil y Ecuador producidas en la Sabana Brasileña

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