Leaf surface and genetic characterization of Digitaria insularis (L.) Fedde and control efficacy of herbicides associations

• Grant number: 12/10372-0
• Support Opportunities: Scholarships in Brazil - Master
• Start date: September 01, 2012
• End date: February 28, 2014
• Field of knowledge: Agronomical Sciences - Agronomy - Crop Science
• Principal Investigator: Ricardo Victoria Filho
• Grantee: Arthur Arrobas Martins Barroso
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The Digitaria insularis (L.) Fedde, is one of the weeds that are resistant to glyphosate in Brazil.It importance growth each day, as uncontrolled, it start to take over different agricultural systems. The aim of this study will be the characterization of glyphosate effect in different biotypes of this specie and chemical control options. Firs will be evaluated the leaf composition of this plant, biochemical and structural, by polar and no polar waxes, stomatal density and leaf structures by electronically microscopy. Later, the genetic constitution of different biotypes will be analyzed by the correlation with the glyphosate resistance degrees by multivariate analysis. In the end, will be evaluated alternative herbicides associations sprays with different glyphosate salts and different ACCase herbicides. The effect of the rates of these associations will be evaluated too by isolograms curves. The data will be submitted to ANOVA analyses and when significant, the means will be compared by SAS. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GALEANO, E.; BARROSO, A. A. M.; VASCONCELOS, T. S.; LOPEZ-RUBIO, A.; ALBRECHT, A. J. P.; VICTORIA FILHO, R.; CARRER, H.. EPSPS variability, gene expression, and enzymatic activity in glyphosate-resistant biotypes of Digitaria insularis. Genetics and Molecular Research, v. 15, n. 3, 2016. (12/10371-3, 13/06299-8, 12/10372-0, 10/19294-6)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

BARROSO, Arthur Arrobas Martins. Foliar and genetic characterization of glyphosate-resistant sourgrass and efficacy of herbicide association. 2014. Master's Dissertation - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.