Process / pipelinePlant ecophysiology and crop physiology
Carbon-13 Discrimination Analysis — Isotopic Discrimination in Crop Plants
Carbon-13 Discrimination Analysis quantifies the degree to which C3 plants preferentially fix the lighter carbon isotope (12C) over the heavier 13C during photosynthesis. The resulting discrimination value (Delta) is closely linked to the ratio of internal to ambient CO2 concentration, making it a reliable, integrative proxy for intrinsic water-use efficiency across the growing season. The technique is widely used in agronomy, plant physiology, and crop breeding.
Open in MethodMindSoonVideoSoon
Read the full method
Members only
Sign inSign in with a free account to read this section.
Sources
- Farquhar, G. D., Ehleringer, J. R., & Hubick, K. T. (1989). Carbon isotope discrimination and photosynthesis. Annual Review of Plant Physiology and Plant Molecular Biology, 40, 503–537. DOI: 10.1146/annurev.pp.40.060189.002443 ↗
- Condon, A. G., Richards, R. A., Rebetzke, G. J., & Farquhar, G. D. (2004). Breeding for high water-use efficiency. Journal of Experimental Botany, 55(407), 2447–2460. DOI: 10.1093/jxb/erh277 ↗