author keywords: carbon isotope composition; intrinsic water use efficiency; Pinus taeda; water relations; water stress

MeSH headings : Carbon Isotopes / analysis; Droughts; Pinus taeda; Trees / physiology; Water / physiology

TL;DR: The positive correlation between lifetime average PDSI and m indicated that loblolly pines were more sensitive to drought at mesic than xeric sites, and the m was found to relate to a plant's stomatal control, and may be employed as a genetic indicator of efficient water use strategies. (via Semantic Scholar)