Fecha/hora: 18/06/2024 14:42:56

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 28/05/2019
Fecha de la última actualización: | 05/09/2022
Autoria: | KASPARY, T. E.; CUTTI, L.; BELLÉ, C.; CASAROTTO, G.; GROTH, M.Z; DA SILVA, G.B.P.; DE AGUIAR, A.C.M.
Afiliación: | TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUAN CUTTI, Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Fitotecnia, 91540-000 Porto Alegre, Rio Grande do Sul, Brazil.; CRISTIANO BELLÉ, Universidade Federal de Santa Maria, Centro de Ciências Rurais, Departamento de Solos, 97105-900, Santa Maria, Rio Grande do Sul, Brazil.; GABRIELE CASAROTTO, Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Fitotecnia, 91540-000 Porto Alegre, Rio Grande do Sul, Brazil.; MÁRTIN ZANCHETT GROTH, Universidade Federal de Pelotas, Pós-Graduação em Ciência e Tecnologia de Sementes, Campus Capão do Leão s/n, Pelotas, Rio Grande do Sul, 96001-970, Brazil.; GERARDA BEATRIZ PINTO DA SILVA, Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Fitotecnia, Porto Alegre, Rio Grande do Sul, 91540-000, Brazil; ADALIN CEZAR MORAES DE AGUIAR, Universidade Federal de Viçosa, Programa de Pós-Graduação em Fitotecnia, Campus Universitário, Viçosa, Minas Gerais, 36570 900, Brazil.
Título: | Non-destructive analysis of photosynthetic pigments in Avena strigosa and Avena sative.
Año de publicación: | 2019
Fuente/Imprenta: | Australian Journal of Crop Science, 1 March 2019. volume 13, Issue 3, , Pages 354-359  [Open Access].
ISSN: | 1835-2707
DOI: | 10.21475/ajcs.19.13.03.p1149
Idioma: | Inglés

Contenido:

Abstract:
Chlorophylls and carotenoids are the main photosynthetic pigments in plants. The photosynthetic potential of crop plants is used to determine the correct rate of nitrogen fertilization. To date, no studies have been conducted to understand the relationship between different methods of measurement of photosynthetic pigments in oats. The objective of this study was to quantify and compare the levels of photosynthetic pigments in Avena strigosa and A. sativa using two different methods, the extraction method and portable chlorophyll meter, and to determine whether the results of these two methods showed a significant correlation. Photosynthetic pigments were measured using both methods in a greenhouse and the laboratory at four developmental stages: tillering [28 days after sowing (DAS)], vegetative stage I (55 DAS), vegetative stage II (75 DAS), and reproductive stage (120 DAS). The same leaves were used to measure the relative chlorophyll content using a portable chlorophyll meter and extractable chlorophyll using the laboratory extraction method. The readings of the chlorophyll index differed for each developmental stage of both A. sativa and A. strigosa. The contents of chlorophyll a, chlorophyll b, and carotenoids determined using the extraction method showed high coefficients of correlation with the total chlorophyll index determined using the portable chlorophyll meter. Thus, the measurement of chlorophyll using the portable chlorophyll meter can be used for the accurate evaluation of the photosynthetic potential of oats, thus saving time and reagents.

Palabras-Clave: | AVENA STRIGOSA SCHREB; CAROTENOIDS; CHLOROPHYLL; PORTABLE CHLOROPHYLL.
Thesagro: | AVENA SATIVA.
Categoría del tema: | L73 Enfermedades de los animales
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/12712/1/Kaspary-TE.-2019.-Australian-Jr.-Crop-Science.-Non-destructiveanalysisofphotosyntheticpigmentsinAvenastrigosaandAvenasativa.pdf
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (102868-1) - PXI - AP - DD - PP/Aust. Journal of Crop Science/2019 -  -  - DIS