Can seed quality of hairy fleabane be reduced due to glyphosate resistance?
DOI:
https://doi.org/10.5965/223811711712018136Keywords:
Conyza bonariensis, herbicide resistance, seed vigor, conyza, germination, herbicideAbstract
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.Downloads
References
COSTA FR et al. 2014. Differential susceptibility and resistance to glyphosate in annual ryegrass and wavy-leaved fleabane. Communications in Plant Sciences 4: 73-77.
DUFF MG et al. 2009. Relative competitiveness of protoporphyrinogen oxidase-resistant common waterhemp (Amaranthus rudis). Weed Science 57: 169-174.
FERREIRA EA et al. 2008. Potencial produtivo de biótipos de ryegrass (Lolium multiflorum). Planta Daninha 26: 261-269.
GALON L et al. 2013. Características fisiológicas de biótipos de Conyza bonariensis resistentes ao glyphosate cultivados sob competição. Planta Daninha 3: 859-866.
GHERSA CM & MARTÍNEZ-GHERSA MA. 2000. Ecological correlates of weed seed size and persistence in the soil under different tilling systems: implications for weed management. Field Crops Research 67: 141-148.
HEAP I. 2017. International survey of herbicide resistant weeds. Available from: <http://weedscience.com>. Accessed on: Aug. 11, 2017.
HERRERA F et al. 2007. Seed quality of windmillgrass ecotypes in two locations of South Texas. Texas Journal of Agriculture and Natural Resources 20: 98-108.
HOLT JS. 1990. Fitness and ecological adaptability of herbicide-resistant biotypes. In: GREEN MB et al. (Eds.). Managing resistance to agrochemicals: from fundamental research to practical strategies. Washington: ACS. p. 419-429.
MAXWELL BD et al. 1990. Predicting the evolution and dynamics of herbicide resistance in weed populations. Weed Technology 4: 2-13.
MOREIRA MS et al. 2010. Crescimento diferencial de biótipos de Conyza spp. resistente e suscetível ao herbicida glifosato. Bragantia 69: 591-598.
PEDERSEN BP et al. 2007. Ecological fitness of a glyphosate-resistant Lolium rigidum population: Growth and seed production along a competition gradient. Basic and Applied Ecology 8: 258-268.
RAO NK et al. 2017. A review of factors that influence the production of quality seed for long-term conservation in genebanks. Genetic Resources and Crop Evolution 64: 1061-1071.
SAX DF et al. 2007. Ecological and evolutionary insights from species invasions. Trends in Ecology & Evolution 22: 465-471.
SHRESTHA A et al. 2010. Growth, phenology, and intraspecific competition between glyphosate-resistant and glyphosate-susceptible horseweeds (Conyza canadensis) in the San Joaquin valley of California. Weed Science 58: 147-153.
THOMPSON CR et al. 1994. Germination characteristics of sulfonylurea - resistant and - susceptible kochia (Kochia scoparia). Weed Science 42: 50-56.
TORRES-GARCÍA JR et al. 2015. Effect of herbicide resistance on seed physiology of Phalaris minor (littleseed canarygrass). Botanical Sciences 93: 661-667.
TRAVLOS IS & CHACHALIS D. 2013. Relative competitiveness of glyphosate-resistant and glyphosate-susceptible populations of hairy fleabane, Conyza bonariensis. Journal of Pest Science 86: 345-351.
VARGAS L et al. 2005. Alteração das características biológicas de biótipos de Azevém (Lolium multiflorum) ocasionada pela resistência ao herbicida glyphosate. Planta Daninha 23: 153-160.
VILA-AIUB MM et al. 2009. Fitness costs associated with evolved herbicide resistance alleles in plants. New Phytologist 184: 751-767.
VILA-AIUB MM et al. 2014. No fitness cost of glyphosate resistance endowed by massive EPSPS gene amplification in Amaranthus palmeri. Planta 239: 793-801.
WEAVER ES & THOMAS G. 1986. Germination responses to temperature of atrazine - resistant and -susceptible biotypes of two pigweed (Amaranthus) species. Weed Science 34: 865-870.
WEIHER E & KEDDY PA. 1999. Ecological assembly rules: perspectives, advances, retreats. Cambridge: Cambridge University Press. 430p.
YANNICCARI M et al. 2016. Glyphosate resistance in perennial ryegrass (Lolium perenne L.) is associated with a fitness penalty. Weed Science 64: 71-79.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2018 Revista de Ciências Agroveterinárias (Journal of Agroveterinary Sciences)
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors publishing in this journal are in agreement with the following terms:
a) Authors maintain the copyrights and concede to the journal the copyright for the first publication, according to Creative Commons Attribution Licence.
b) Authors have the authority to assume additional contracts with the content of the manuscript.
c) Authors may supply and distribute the manuscript published by this journal.
