Data/hora: 13/06/2024 08:52:41

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 30/09/2016
Data da última atualização: | 25/04/2017
Autoria: | RIOS, S. de A.; KARAM, D.; BORÉM, A.; CARDOSO, W. S.; PAES, M. C. D.
Afiliação: | SARA DE ALMEIDA RIOS, SPM; DECIO KARAM, CNPMS; ALUÍZIO BORÉM, UFV, Viçosa, MG.; WILTON SOARES CARDOSO, IFES, Campus Venda Nova, ES; MARIA CRISTINA DIAS PAES, CNPMS.
Título: | Effect of post-emergent herbicides application on carotenoid concentration in green corn.
Ano de publicação: | 2016
Fonte/Imprenta: | Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 15, n. 2, p. 262-271, 2016.
DOI: | 10.18512/1980-6477/rbms.v15n2p262-271
Idioma: | Inglês
Conteúdo: | Considering the influence of herbicides in the metabolism of the carotenoids in corn, the objective of the present study was to evaluate the effect of herbicides and genotype on carotenoids concentration. The green corn hybrids BRS 1030 and P30F53 were subjected to a post-emergent herbicides application at 20 and 30 days after emergence. Carotenoids were extracted from corn grains and analyzed to quantify ß- and ß-carotene, lutein, zeaxanthin, ß-cryptoxanthin, total carotenoids (TC), and total of vitamin A carotenoids precursors (proVA). The application of foramsulfuron + iodosulfuron-methyl-sodium (40 + 2.6 g ha-1), nicosulfuron (20 g ha-1), mesotrione (120 g ha-1) and tembotrione (80 g ha-1 and 100 g ha-1) promoted higher concentration of carotenoids in fresh green corn. Lutein, zeaxanthin, ?-cryptoxanthin, ß-carotene, ß-carotene, proVA carotenoids, and TC concentration increased after foramsulfuron + iodosulfuron-methyl-sodium in late application (V5 to V6), nicosulfuron in both applications, mesotrione applied post-initial (V3 to V4), tembotrione (100 g ha-1) in both applications and tembotrione (80 g ha-1) in late post-application, at least for one hybrid. The content of carotenoids in the green corn kernels differed between 'BRS 1030' and 'P30F53'. Our results suggest a possibility of significant increase of carotenoids in green corn kernels through the handling of corn production with post-emergent herbicides.
Palavras-Chave: | Biossíntese de carotenoide.
Thesagro: | Caroteno; Carotenóide; Herbicida; Vitamina A; Zea mays.
Thesaurus Nal: | Carotenoids; Herbicides.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/148067/1/Effect-post.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (27235-1) - UPC - AP - DD -  -  -  - DIS