African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12482

Full Length Research Paper

Stem diameter and height of chrysanthemum cv Yoko ono as affected by gibberellic acid

Marcos Ribeiro da Silva Vieira1*, Angela Vacaro de Souza1, Caio Marcio Guimarães Santos1, Leonardo de Sousa Alves2, Reginaldo Conceição Cerqueira1, Reinaldo de Alencar Paes3, Aline Danielle de Souza4 and Luiza Maria de Sousa Fernandes1
  1Departamento de Produção Vegetal (Horticultura), Universidade Estadual Paulista, CEP: 18601-060, Botucatu, SP, Brasil. 2Universidade Federal de Campina Grande, Pombal, PB, Brasil. 3Universidade Federal de Alagoas, Centro de Ciências Agrárias-CECA, Maceio, AL, Brasil. 4Departamento de Ciências Vegetais, Universidade Federal Rural do Semi-Árido,  Mossoró, RN, Brasil.
Email: [email protected]

  •  Accepted: 17 June 2011
  •  Published: 26 September 2011

Abstract

 

The effect of gibberellic acid has been shown mainly to promote cell division and elongation. This study was aimed to evaluate the development of height and diameter of the stems of chrysanthemum cultivar Yoko ono by the applications of gibberellic acid (GA3) in the field. The treatments were composed of four doses (0, 40, 80 and 120 mg L-1) at 15 and 30 days after transplanting. From the findings, It can be concluded that GA3 significantly affected the diameter of stem at higher doses, and was unable to affect the height of stem.

 

Key words: Dendranthema grandiflora, flowers, plant regulator, concentration.

Abbreviation

GA3, Gibberellic acid; ABA, abscisic acid; IAA, indoleacetic acid.