Reexamining the empirical relation between plant growth and leaf photosynthesis

Functional Plant Biology : FPB
E L Kruger, John C Volin

Abstract

Technological advances during the past several decades have greatly enhanced our ability to measure leaf photosynthesis virtually anywhere and under any condition. Associated with the resulting proliferation of gas-exchange data is a lingering uncertainty regarding the importance of such measurements when it comes to explaining intrinsic causes of plant growth variation. Accordingly, in this paper we rely on a compilation of data to address the following questions: from both statistical and mechanistic standpoints, how closely does plant growth correlate with measures of leaf photosynthesis? Moreover, in this context, does the importance of leaf photosynthesis as an explanatory variable differ among growth light environments? Across a wide array of species and environments, relative growth rate (RGR) was positively correlated with daily integrals of photosynthesis expressed per unit leaf area (Aarea), leaf mass (Amass), and plant mass (Aplant). The amount of RGR variation explained by these relationships increased from 36% for the former to 93% for the latter. Notably, there was close agreement between observed RGR and that estimated from Aplant after adjustment for theoretical costs of tissue construction. Overall, based on an...Continue Reading

References

May 5, 2001·Annual Review of Plant Physiology and Plant Molecular Biology·Thomas D Sharkey, Sansun Yeh
May 3, 2002·Tree Physiology·John C VolinRichard L Lindroth
May 1, 1991·Ecological Applications : a Publication of the Ecological Society of America·J A van VeenS C van de Geijn
Apr 1, 2005·Functional Plant Biology : FPB·Owen K AtkinMark G Tjoelker

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Citations

Jan 7, 2010·Journal of Experimental Botany·Xinyou Yin, Paul C Struik
Jan 31, 2014·Proceedings. Biological Sciences·Thomas J Givnish, Rebecca A Montgomery
Jun 26, 2014·Journal of Experimental Botany·S M DrieverM A J Parry
Apr 21, 2009·Plant & Cell Physiology·Ayumi Tanaka, Amane Makino
Aug 16, 2017·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Steven M DrieverChristine A Raines
Feb 18, 2019·Journal of Experimental Botany·Andrew J SimkinChristine A Raines

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