Seasonal correlations of specific leaf weight to net photosynthesis and dark respiration of apple leaves

Richard P. Marini, John A. Barden

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Specific leaf weight (SLW), net photosynthesis (Pn), and dark respiration (Rd) of apple leaves were monitored for an entire growing season. Leaves were sampled from the canopy interior and periphery to provide a range of SLW. Leaf Pnwas linearly correlated with SLW until mid-August, when Pnbegan to decline. During September the relationship between SLW and Pnwas a quadratic. Leaf Rdand SLW were linearly correlated throughout the season. Leaf Pnand Rdwere significantly correlated through most of the season, but the relationship was not always linear. Specific leaf weight appears to be a reliable index of the previous light environment of a leaf, but use to estimate Pnis probably limited to the first half of the season, because of increased variation after mid-August.

Original languageEnglish (US)
Pages (from-to)251-258
Number of pages8
JournalPhotosynthesis research
Volume2
Issue number4
DOIs
StatePublished - Dec 1 1981

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Plant Science
  • Cell Biology

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