SciELO - Scientific Electronic Library Online

 
vol.48 número2Resistência de campo ao vírus da queima-do-broto em genótipos de soja resistentes a insetosAcúmulo de massa seca e teores de elementos químicos em três cultivares de soja em função da correção da acidez do solo de Itararé (SP) índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Bragantia

versão impressa ISSN 0006-8705versão On-line ISSN 1678-4499

Resumo

PAULO, Edison Martins; FUJIWARA, Mamor  e  DODO, Shizuo. Effects of ethephon, thidiazuron and their mixture on defoliation and ruit dehiscence in cotton. Bragantia [online]. 1989, vol.48, n.2, pp.215-221. ISSN 1678-4499.  https://doi.org/10.1590/S0006-87051989000200007.

The defoliation and fruit dehiscence of cotton plants were evaluated by applications of Ethephon (rates: 0.96, 1.44 and 1.92kg/ha). Thidiazuron (0.075kg/ha) and the mixture of both Ethephon plus Thidiazuron (0.48 + 0.05, 0.96 + 0.05, and 1.44 + 0.05kg/ha, respectively). The mixture of the products was done in the sprayer tank. Observations of the cotton plants were carried out at seven and fourteen days after application of the products. Except for the application of Ethephon at the rate of 0.96kg/ha, it was observed that the three treatments were effective in promoting cotton defoliation. It was also verified that Ethephon at the rates of 1.44kg/ha accelerated fruit dehiscence while Thidiazuron did not. Antagonic action of the products was observed when applied in mixture. The isolated application of the products or the mixture had no effect on cotton yield.

Palavras-chave : cotton; Ethephon; Thidiazuron; defoliation and fruit dehiscence.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons