Dr Shane RothwellResearch Associate
Soil acidification is a natural process, hastened by modern intensive agricultural practices, which may negatively affect crop yield via reduced nutrient availability. Soil acidification in agriculture is traditionally managed by applying lime to target soil pH ranges that optimise nutrient availability. However, yield depression can occur with recommended rates of liming in certain soil types.
My research seeks to understand the underlying physiological mechanisms behind this negative growth response in legume crops (peas and beans). With this knowledge we can develop novel methods that help mitigate this response, thus helping to restore the beneficial effects of liming in susceptible soils.
Gravimetric phenotyping of whole plant transpiration responses to atmospheric vapour pressure deficit identifies genotypic variation in water use efficiency
Ryan, A., Dodd, I.C., Rothwell, S.A., Jones, R.J.G., Tardieu, F., Draye, X., Davies, W.J. 10/2016 In: Plant Science. 251, p. 101-109. 9 p.
Common and specific responses to availability of mineral nutrients and water
Kudoyarova, G.R., Dodd, I.C., Veselov, D.S., Rothwell, S.A., Veselov, S.Y. 04/2015
Liming can decrease legume crop yield and leaf gas exchange by enhancing root to shoot ABA signalling
Rothwell, S.A., Elphinstone, E.D., Dodd, I.C. 04/2015 In: Journal of Experimental Botany. 66, 8, p. 2335-2345. 11 p.
Xylem sap calcium concentrations do not explain liming-induced inhibition of legume gas exchange
Rothwell, S.A., Dodd, I.C. 09/2014 In: Plant and Soil. 382, 1-2, p. 17-30. 14 p.