Artículos de revistas
Can seed quality of hairy fleabane be reduced due to glyphosate resistance?
Fecha
2018-01-01Registro en:
Revista de Ciencias Agroveterinarias, v. 17, n. 1, p. 136-141, 2018.
2238-1171
1676-9732
10.5965/223811711712018136
2-s2.0-85046956068
Autor
Santa Catarina State University
Federal Institute of Santa Catarina
Universidade Estadual Paulista (UNESP)
Institución
Resumen
The resistance to glyphosate may provide a penalty on plant growth and physiology. We investigate if the resistance to glyphosate reduces the seed quality of Conyza bonariensis by performing seed viability and vigor tests under a completely randomized design with four replicates of 50 seeds for both glyphosate-susceptible (S) and -resistant (R) biotypes. Low seed viability (<50%) was found in both S and R biotypes. No difference occurred between either S and R biotypes on seed germination and embryo viability. The percentage of seed germination of the S biotype was higher than the R biotype in the cold test (~58%), accelerated aging test (~84%), and high-temperature stress test (~45%). This is the first time one found evidences that resistance to glyphosate may be responsible for a penalty on seed quality of C. bonariensis.