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Chlorophyll fluorescence tests for monitoring triazinone resistance in Chenopodium album L.

Jonas Aper (UGent) , Tania De Marez (UGent) , Els Mechant (UGent) and Robert Bulcke (UGent)
Author
Organization
Abstract
Recently, fat-hen (Chenopodium album L.) biotypes resistant to metamitron, a key herbicide in sugar beet, were recorded. Pot experiments revealed that these biotypes showed cross-resistance to metribuzin, a triazinone used in potato. Greenhouse and laboratory experiments were performed to develop resistance monitoring tests, so that resistant biotypes can be detected quickly and farmers may adapt their weed management. Resistant and susceptible biotypes were grown in a greenhouse under conditions of natural and artificial light at an intensity of 100 μmol photons m-2 s-1. Leaves were collected and, immersed in a solution of 1000 μM metamitron and 500 μM metribuzin, exposed to natural and artificial light (1000, 750 and 100 μmol photons m-2 s-1 respectively). After this, chlorophyll fluorescence measurements were carried out. The results revealed that the photosynthetic electron transport of metamitron- and metribuzin-incubated leaves of resistant biotypes decreased less than that of the incubated leaves of susceptible biotypes. The differences between the metribuzin-incubated leaves of the susceptible and resistant biotypes were larger than those observed with the metamitron-incubated leaves. The aim of the experiments was to optimise the chlorophyll fluorescence test and to find a sufficiently high correlation between the results of the pot experiments and the chlorophyll fluorescence measurements.
Keywords
Chenopodium album, herbicide resistance, chlorophyll fluorescence

Citation

Please use this url to cite or link to this publication:

Chicago
Aper, Jonas, Tania De Marez, Els Mechant, and Robert Bulcke. 2008. “Chlorophyll Fluorescence Tests for Monitoring Triazinone Resistance in Chenopodium Album L.” In Communications in Agricultural and Applied Biological Sciences, ed. Pieter Spanoghe, 73:939–944. Ghent, Belgium: Ghent University, Faculty of Bioscience Engineering.
APA
Aper, J., De Marez, T., Mechant, E., & Bulcke, R. (2008). Chlorophyll fluorescence tests for monitoring triazinone resistance in Chenopodium album L. In P. Spanoghe (Ed.), COMMUNICATIONS IN AGRICULTURAL AND APPLIED BIOLOGICAL SCIENCES (Vol. 73, pp. 939–944). Presented at the 60th International Symposium on Crop Protection, Ghent, Belgium: Ghent University, Faculty of Bioscience Engineering.
Vancouver
1.
Aper J, De Marez T, Mechant E, Bulcke R. Chlorophyll fluorescence tests for monitoring triazinone resistance in Chenopodium album L. In: Spanoghe P, editor. COMMUNICATIONS IN AGRICULTURAL AND APPLIED BIOLOGICAL SCIENCES. Ghent, Belgium: Ghent University, Faculty of Bioscience Engineering; 2008. p. 939–44.
MLA
Aper, Jonas, Tania De Marez, Els Mechant, et al. “Chlorophyll Fluorescence Tests for Monitoring Triazinone Resistance in Chenopodium Album L.” Communications in Agricultural and Applied Biological Sciences. Ed. Pieter Spanoghe. Vol. 73. Ghent, Belgium: Ghent University, Faculty of Bioscience Engineering, 2008. 939–944. Print.
@inproceedings{673107,
  abstract     = {Recently, fat-hen (Chenopodium album L.) biotypes resistant to metamitron, a key herbicide in sugar beet, were recorded. Pot experiments revealed that these biotypes showed cross-resistance to metribuzin, a triazinone used in potato. Greenhouse and laboratory experiments were performed to develop resistance monitoring tests, so that resistant biotypes can be detected quickly and farmers may adapt their weed management.  
Resistant and susceptible biotypes were grown in a greenhouse under conditions of natural and artificial light at an intensity of 100 \ensuremath{\mu}mol photons m-2 s-1. Leaves were collected and, immersed in a solution of 1000 \ensuremath{\mu}M metamitron and 500 \ensuremath{\mu}M metribuzin, exposed to natural and artificial light (1000, 750 and 100 \ensuremath{\mu}mol photons m-2 s-1 respectively). After this, chlorophyll fluorescence measurements were carried out. The results revealed that the photosynthetic electron transport of metamitron- and metribuzin-incubated leaves of resistant biotypes decreased less than that of the incubated leaves of susceptible biotypes. The differences between the metribuzin-incubated leaves of the susceptible and resistant biotypes were larger than those observed with the metamitron-incubated leaves. The aim of the experiments was to optimise the chlorophyll fluorescence test and to find a sufficiently high correlation between the results of the pot experiments and the chlorophyll fluorescence measurements.},
  author       = {Aper, Jonas and De Marez, Tania and Mechant, Els and Bulcke, Robert},
  booktitle    = {COMMUNICATIONS IN AGRICULTURAL AND APPLIED BIOLOGICAL SCIENCES},
  editor       = {Spanoghe, Pieter},
  issn         = {1379-1176},
  language     = {eng},
  location     = {Ghent, Belgium},
  number       = {4},
  pages        = {939--944},
  publisher    = {Ghent University, Faculty of Bioscience Engineering},
  title        = {Chlorophyll fluorescence tests for monitoring triazinone resistance in Chenopodium album L.},
  url          = {http://www.iscp.ugent.be/proceedings\%2060.pdf},
  volume       = {73},
  year         = {2008},
}