Differential tolerance of sugarcane varieties to herbicide stress

Author(s)

Renato Rodrigues Ferreira ^[1] ; Fabrício Tadeu Rodrigues de Oliveira ^[2] ; Fabrício de Souza Delite ^[3] ; Ricardo Antunes Azevedo ^[4] ; Marcelo Nicolai ^[5] ; Saul Jorge Pinto de Carvalho ^[6] ; Pedro Jacob Christoffoleti ^[7] ; Antonio Vargas De Oliveira Figueira ^[8]

Affiliation

^[1] USP. CENA. Laboratório de Melhoramento de Plantas - Brasil

^[2] USP. CENA. Laboratório de Melhoramento de Plantas - Brasil

^[3] USP. ESALQ. Departamento de Genética - Brasil

^[4] USP. ESALQ. Departamento de Genética - Brasil

^[5] USP. ESALQ. Departamento de Produção Vegetal - Brasil

^[6] USP. ESALQ. Departamento de Produção Vegetal - Brasil

^[7] USP. ESALQ. Departamento de Produção Vegetal - Brasil

^[8] USP. CENA. Laboratório de Melhoramento de Plantas - Brasil

• Document type: Journal article
• Source: Bragantia; v. 69, n. 2, p. 395-404, 2010-00-00.

Abstract

This work was carried out with the objective of screening for tolerance response of SP and CTC sugarcane varieties to application of ten herbicides commonly recommended to weed management in this crop. Two trials were evaluated with factorial design between the sugarcane varieties and eleven herbicide treatments. In the first experiment, seven SP varieties were used (factorial 7 x 11): SP80-1842, SP80-3280, SP83-2847, SP87-344, SP87-396, SP89-1115 and SP90-3414. In the second experiment, six CTC varieties were evaluated (factorial 6 x 11): CTC1, CTC2, CTC3, CTC4, CTC5 and CTC6. The post-emergence-applied herbicide treatments were: ametryn, ametryn + trifloxysulfuron-sodium, clomazone, diuron + hexazinone, isoxaflutole, imazapic, 2,4-D, tebuthiuron, sulfentrazone, MSMA and check without application. The variables evaluated were: fresh mass, height, SPAD index and tillering: Valves here considered as relative percentage to the untreated control. Differential tolerance of sugarcane varieties was observed regarding to application of the tested herbicides. SP80-3280 and CTC2 were the most tolerant varieties to herbicide application, and might have this characteristic exploited by sugarcane breeding programs. (AU)

• FAPESP's process: 06/52330-0 - Biochemical and genetic characterization of the sugarcane glutathione S-transferases (GSTs) involved in the disintoxication of herbicides
• Grantee: Antonio Vargas de Oliveira Figueira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 06/60196-2 - Biochemical and molecular characterization of the sugarcane glutathione s-transferase: response to herbicides and safeners
• Grantee: Renato Rodrigues Ferreira
• Support Opportunities: Research Grants - First Projects Program (PPP)
• FAPESP's process: 06/60405-0 - Isolation and purification of sugarcane GSTs subjected to herbicides applications
• Grantee: Fabrício Tadeu Rodrigues de Oliveira
• Support Opportunities: Scholarships in Brazil - Scientific Initiation