User profiles for S. Powles
Stephen PowlesProfessor - University of Western Australia Verified email at uwa.edu.au Cited by 35291 |
Photoinhibition of photosynthesis induced by visible light
SB Powles - Annual review of plant physiology, 1984 - annualreviews.org
… Vernotte and S. B. Powles, unpublished), a result which suggests that the loss of … There
must be a lesion(s) at the PSII reaction centers which lessens the efficiency of photochemistry …
must be a lesion(s) at the PSII reaction centers which lessens the efficiency of photochemistry …
Glyphosate: a once‐in‐a‐century herbicide
… There are no proven cases of complete introgression of herbicide resistance gene(s) from
a naturally resistant crop to an associated weed in the field. That weeds closely related to …
a naturally resistant crop to an associated weed in the field. That weeds closely related to …
Evolution in action: plants resistant to herbicides
… Having written this review during a sabbatical period, S. Powles thanks the OECD and
Australian Academy of Science for support and Dr. Xavier Reboud and colleagues at INRA, Dijon, …
Australian Academy of Science for support and Dr. Xavier Reboud and colleagues at INRA, Dijon, …
Reducing the risks of herbicide resistance: best management practices and recommendations
Herbicides are the foundation of weed control in commercial crop-production systems. However,
herbicide-resistant (HR) weed populations are evolving rapidly as a natural response to …
herbicide-resistant (HR) weed populations are evolving rapidly as a natural response to …
Evolved resistance to glyphosate in rigid ryegrass (Lolium rigidum) in Australia
SB Powles, DF Lorraine-Colwill, JJ Dellow… - Weed science, 1998 - cambridge.org
… Values are LDso·s calculated by probit analysis of the full dose response. Values in
parenthesIS represent the 95% confidence intervals. RlS is the ratio of LDso of the resistant …
parenthesIS represent the 95% confidence intervals. RlS is the ratio of LDso of the resistant …
Evolved glyphosate‐resistant weeds around the world: lessons to be learnt
SB Powles - Pest Management Science: formerly Pesticide …, 2008 - Wiley Online Library
… GRCs tolerate glyphosate well, and glyphosate can be effective against large weeds, ensuring
that there is flexibility in the timing of glyphosate treatment(s). The simplicity, consistency …
that there is flexibility in the timing of glyphosate treatment(s). The simplicity, consistency …
Pollen-mediated movement of herbicide resistance between commercial canola fields
There is considerable public and scientific debate for and against genetically modified (GM)
crops. One of the first GM crops,Brassica napus (oilseed rape or canola) is now widely …
crops. One of the first GM crops,Brassica napus (oilseed rape or canola) is now widely …
Metabolism-based herbicide resistance and cross-resistance in crop weeds: a threat to herbicide sustainability and global crop production
… sites of action and can extend to new herbicide(s). Cytochrome P450 monooxygenase,
glycosyl transferase, and glutathione S-transferase are often implicated in herbicide metabolic …
glycosyl transferase, and glutathione S-transferase are often implicated in herbicide metabolic …
Resistance to AHAS inhibitor herbicides: current understanding
… /S ratios) (although it might be worth noting that GR 50 R/S ratios are more variable than LD
50 ratios dependent on the design, conditions and, in particular, the length of experiments). …
50 ratios dependent on the design, conditions and, in particular, the length of experiments). …
Inhibition of photosynthetic reactions under water stress: interaction with light level
O Björkman, SB Powles - Planta, 1984 - Springer
… gmol m- z s- 1) and the kinetics of the fluorescence emission measured at 692 and 734
nm, using the same light source, filters and procedure described in Powles and Bjdrkman (1982). …
nm, using the same light source, filters and procedure described in Powles and Bjdrkman (1982). …