Data/hora: 26/06/2024 17:09:57

Biblioteca(s): | Epagri-Sede.
Data corrente: | 13/07/2011
Data da última atualização: | 13/07/2011
Autoria: | ARGENTA, L. C.; LOPES, N. F.
Afiliação: | Epagri
Título: | Pigments accumulation, photosynthetic, respiratory and growth rates in soybean rice and water-grass as affected by chlomazone doses.
Ano de publicação: | 1992
Fonte/Imprenta: | Revista Brasileira de Fisiologia Vegetal , Campinas, SP, v. 4, n. 2, p. 81-86, 1992.
Idioma: | Inglês
Notas: | ISSN, 01033131

Conteúdo:

The effects of 2-(2-Chlorophenyl) Methyl-4,4-Dimethyl- 3-Isoxazolidione (Chlomazone) doses on some physiological aspects in soybean (Glycine max (L.) Merrill), rice (Oryza sativa L.) and watergrass (Echinochloa cruzgalii L. Beauv) were studied. Inhibition of Photosynthesis and of chlorophyll, carotenoids and phytoene accumulation in rice increased with chlomazone doses above 0.75 Kg a.i.ha-1. None of these effects were observed in soybean using up to 3.0 Kg a.i.ha-1. Water-grass plants treated with 0.75
Kg a.i.ha-1 died six days after emergence. In rice plants, chlomazone reduced Photosynthetic saturation irradiance and increased compensation irradiance. Redution in chlorophyll accumulation and a/b chlorophyll ratio caused by chlomazone was even greater when rice plants were grown under higher light flux density.

Palavras-Chave: | Herbicide; Photosynthesis; Pigments.
Categoria do assunto: | --
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_4380.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (81126-1) - UPC - AP - -- -  -  -  - DIS