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| Registros recuperados: 88 | |
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| PINEDO-PANDURO, M.; CHAGAS, E. A.; PAREDES-DAVILA, E.; ABANTO-RODRIGUEZ, C.; BARDALES-LOZANO, R.; CHAGAS, P. C.; MELO, V. F.; SALDAÑA, H. C.. |
| El objetivo de este estudio fue seleccionar genotipos de camu-camu en una colección ex situ establecida en un área inundable de la cuenca del río Amazonas (Perú), el 2002. La colección estuvo conformada por 115 muestras provenientes de los ríos Itaya, Napo, Tigre, Curaray y Putumayo. Los datos de diez cosechas consecutivas (2006 a 2015) se analizaron utilizando Selegen-Reml/Blup. El análisis permitió conocer los niveles de repetibilidad bajo precisión selectiva del rendimiento de fruta, cuyo promedio fue de 1242 g.pl-1 con un índice de repetibilidad inicial de r=0,045, que aumentó después de 10 años a rm=0,322, precisión selectiva de 0,567 y eficiencia selectiva de 2,66. Basado en estos índices, se seleccionaron las diez mejores plantas para la producción... |
| Tipo: -- |
Palavras-chave: Fruto nativo amazónico; Mejoramiento de plantas; Selección de plantas. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129767 |
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| GRASSI, A. M.; SCARPARE FILHO, J. A.; CHAGAS, E. A.; PIO, R.; SANCHES, J.; CIA, P.; BARBOSA, W.; TIZATO, L. H. G.; CHAGAS, P. C.; TOMAZI, E. F.. |
| Tipo: Separatas |
Palavras-chave: Tamanho de fruto. |
| Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/876276 |
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| GRIGIO, M. L.; MOURA, E. A. de; CHAGAS, E. A.; DURIGAN, M. F. B.; CHAGAS, P. C.; CARVALHO, G. F. de; ZANCHETTA, J. J.. |
| The present study was carried out to evaluate the antioxidant activity of and the content of bioactive compounds in camu-camu fruits harvested at different maturation stages and stored. The fruits were harvested in the municipality of Cantá, Roraima State, Brazil. The experimental design was completely randomized, with three replications, in a factorial arrangement consisting of three different maturation stages (immature, semi-mature and mature) and eight days of storage (3 x 8). The fruits were analysed every day regarding total vitamin C, carotenoids, anthocyanins, flavonoids, total phenolic compounds, and antioxidant activity (FRAP and DPPH). According to the results obtained, the interaction of maturation stages x eight days of storage had a... |
| Tipo: Artigo de periódico |
Palavras-chave: Biocompounds; Multivariate statistics; Myrciaria Dubia; Anthocyanins; Phenolic compounds. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139455 |
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| ARAÚJO, M. da C. da R.; CHAGAS, E. A.; VENDRAME, W.; RIBEIRO, M. I. G.; MOURA, E. A. de; TAVEIRA, D. L. L.; CHAGAS, P. C.; GRIGIO, M. L.. |
| Caçari is a fruit tree that is native to the Amazon region of Brazil. The fruit is considered to have the highest vitamin C content of any edible fruit (13.757 mg 100 g-1 dry weight). The objective of this study was to evaluate the effects of 2,4-D and 6-BAP alone or in combination on in vitro callus induction and pro-embryogenic mass formation in caçari stem segments in different culture media as a precursor for caçari micropropagation. The experiment consisted of two culture media (MS and WPM) and combinations of four concentrations of 2,4-D (0, 1, 2 and 4 mg L-1) and BAP (0, 0.25, 0.5 and 1 mg L-1). The results showed that the highest percentage of callus formation (99%) was obtained in WPM supplemented with 4 mg L-1, 2,4-D and 1 mg L-1 BAP, and this... |
| Tipo: Artigo de periódico |
Palavras-chave: Camu-camu; Somatic embryogenesis; Growth regulators. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139460 |
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| MELO, V. F. de; CHAGAS, E. A.; SIQUEIRA, R. H. da S.; MESQUITA, O. S.; ALMEIDA, L. F. P. de; ROSSONI, D. F.; CHAGAS, P. C.; ABANTO-RODRÍGUEZ, C.. |
| Camu-camu is an native species in domestication processes. Therefore, studies related to the root system are necessary to evaluate the best cultivation practices for an orchard. Two trials were conducted, one with nitrogen (N) and the other with potassium (K), at doses of 0, 40, 80, 160, and 320 kg·ha?1. Root distribution was determined using nondestructive analyses in which two-dimensional (2D) root images were obtained from trenches under the plants? canopy. Variables included width (measured in cubic millimeters), area (measured in square millimeters), and length (measured in millimeters, and were analyzed using Safira software (version 2010, Embrapa, Brazil). To have better spatial visualization of variable distribution in the soil profile, data were... |
| Tipo: Artigo de periódico |
Palavras-chave: Nondestructive spatial analysis; Root assessment; Caçari; Myrciaria Dubia. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139918 |
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| Registros recuperados: 88 | |
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