Data/hora: 10/06/2024 00:47:04

Provedor de dados: | 53
País: | Brazil
Título: | Effect of root and leaf applications of soluble silicon on blast development in rice
Autores: | Cacique,Isaias Severino; Domiciano,Gisele Pereira; Moreira,Wiler Ribas; Rodrigues,Fabrício Ávila; Cruz,Maria Fernanda Antunes; Serra,Núria Sierras; Català,Ana Botta.
Data: | 2013-01-01
Ano: | 2013
Palavras-chave: | Pyricularia oryzae; Foliar disease; Mineral nutrition.
Resumo: | Blast, caused by Pyricularia oryzae, is the most important fungal disease of rice worldwide. This study aimed to compare root and foliar supply of soluble silicon (Si) on rice resistance to blast. The application of soluble Si to the roots increased Si concentration in leaf tissues as compare to plants grown in soil amended with calcium silicate. There was no increase in leaf Si concentration after soluble Si spray, regardless if the leaves were washed or not before analysis. X-ray microanalysis revealed that Si deposition was very similar on the leaf epidermis of plants sprayed with soluble Si, root amended with soluble Si or grown in soil amended with calcium silicate. The lesion size, the number of lesions per cm² of leaf and the area under blast progress curve were reduced for rice plants grown in soil that received the application of soluble Si or was amended with calcium silicate. The results of this study showed that the supply of soluble Si to the roots or its spray onto to the rice leaves can decrease blast symptoms.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052013000300013
Editor: | Instituto Agronômico de Campinas
Relação: | 10.1590/brag.2013.032
Formato: | text/html
Fonte: | Bragantia  v.72 n.3 2013
Fonte: | info:eu-repo/semantics/openAccess