Does fertilization explain the extraordinary hydraulic behaviour of apple trees?

Journal of Experimental Botany
Barbara BeikircherStefan Mayr

Abstract

Fertilization of woody plants plays a central role in agriculture and forestry, but little is known about how plant water relations are thereby affected. Here we investigated the impact of fertilization on tree hydraulics, and xylem and pit anatomy in the high-yield apple cultivars Golden and Red Delicious. In fertilized trees of Golden Delicious, specific hydraulic conductivity of branch xylem, hydraulic conductance of the root system, and maximum stomatal conductance increased considerably. In Red Delicious, differences between fertilized and control trees were less pronounced. In both cultivars, xylem embolism resistance of fertilized trees was significantly lower and stomatal closure occurred at lower water potentials. Furthermore, water potential at turgor loss point and osmotic potential at full saturation were higher and cell wall elasticity was lower in fertilized plants, suggesting reduced drought tolerance of leaves. Anatomical differences were observed regarding conduit diameters, cell wall reinforcement, pit membrane thickness, pit chamber depth, and stomatal pore length, with more pronounced differences in Golden Delicious. The findings reveal altered hydraulic behaviour in both apple cultivars upon fertilization. ...Continue Reading

References

Mar 26, 2003·Tree Physiology·H. P. Harvey, R. Van Den Driessche
Feb 5, 2004·Tree Physiology·H P Harvey, R Van Den Driessche
Jun 14, 2005·The New Phytologist·Janice E K CookeJohn M Davis
Nov 1, 1988·Plant Physiology·J S Sperry, M T Tyree
Nov 4, 2006·Plant, Cell & Environment·Sandra J BucciFernando Miralles-Wilhelm
Jul 29, 2008·Plant, Cell & Environment·Barbara Beikircher, Stefan Mayr
Jun 17, 2010·Journal of Experimental Botany·B BeikircherS Mayr
Feb 1, 2009·American Journal of Botany·Steven JansenAnnelies Pletsers
Mar 1, 2004·American Journal of Botany·Uwe G HackeJarmila Pittermann
Dec 25, 2012·Journal of Experimental Botany·Paul L DrakePeter J Franks
Mar 5, 2013·Current Opinion in Plant Biology·Frederic LensStephane Herbette
Dec 10, 2013·Tree Physiology·Barbara BeikircherStefan Mayr
Sep 25, 2015·American Journal of Botany·Steven Jansen, H Jochen Schenk
Oct 31, 2015·Plant, Cell & Environment·Scott A M McAdamJohn J Ross
Jun 9, 2016·Plant Physiology·Lawren Sack, Thomas N Buckley
Dec 9, 2016·Plant Physiology·H Jochen SchenkSteven Jansen

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