Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/154362
Título: Bioassay for paclobutrazol detection in soil.
Autoria: FILHO, J. M. P. L.
MOUCO, M. A. do C.
SANTOS, S. C. A. dos
Afiliação: JOSE MOACIR PINHEIRO LIMA FILHO, CPATSA
MARIA APARECIDA DO CARMO MOUCO, CPATSA
SANDRA CRISTINA ALVES DOS SANTOS.
Ano de publicação: 2004
Referência: In: SEMANA INTERNACIONAL DA FRUTICULTURA, FLORICULTURA E AGROINDÚSTRIA, 11.
INTERNATIONAL SYMPOSIUM ON TROPICAL AND SUBTROPICAL FRUITS, 3.
INTERNATIONAL WEEK OF FRUIT CROP, FLORICULTURE AND AGROINDUSTRY, 11.
SIMPÓSIO INTERNACIONAL DE FRUTAS TROPICAIS E SUBTROPICAIS, 3., 2004, Fortaleza. Frutal 2004: programa and abstracts. Fortaleza: Instituto FRUTAL: HPP, 2004.
Conteúdo: Paclobutrazol (PBZ), a growth regulator that inhibits gibberellin synthesis, has been applied in the management of mango (Mangifera indica L.) floral induction at the São Francisco River Valley (Northeast Brazil). Soil applied PBZ can result on long lasting residual accumulation that may hamper plant development and fruit production. Aiming at establishing a simple and fast approach for PBZ detection, sorghum seeds (Sorghum bicolor L.) were planted under greenhouse conditions in pots containing 3 kg of a sandy soil. The chemical was applied six months before sowing at concentrations of 0.0; 0.25; 0.50 and 1.0 g. a.i. in a completely randomized experimental design with five replicates. Twenty days after germination the seedlings were sampled for the bioassay evaluation based on germination, length and dry weight of tops and roots. The results showed that PBZ did not play a significant role on seed germination, root growth and dry weight. Nevertheless, it was observed a significant decrease on growth and dry weight of the tops for all the concentrations, suggesting that this approach may be easily used, taking into account the growth of sorghum seedlings tops for the qualitative PBZ residue detection on mango orchards helping farmers to decide whether or not to apply PBZ.
Thesagro: Manga
Mangifera Indica
Regulador de Crescimento
Solo
NAL Thesaurus: Mangoes
Paclobutrazol
Growth regulators
Palavras-chave: Indução floral
PBZ
Tipo do material: Resumo em anais e proceedings
Acesso: openAccess
Aparece nas coleções:Resumo em anais de congresso (CPATSA)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
OPB607.pdf53,59 kBAdobe PDFThumbnail
Visualizar/Abrir

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace