Variation in branchlet ?13C in relation to branchlet nitrogen concentration and growth in 8-year-old hoop pine families (Araucaria cunninghamii) in subtropical Australia

Prasolova, N.V., Xu, Z.H., Farquhar, G.D., Saffigna, P.G. and Dieters, M.J. (2000) Variation in branchlet ?13C in relation to branchlet nitrogen concentration and growth in 8-year-old hoop pine families (Araucaria cunninghamii) in subtropical Australia. Tree Physiology, 20 15: 1049-1055. doi:10.1093/treephys/20.15.1049


Author Prasolova, N.V.
Xu, Z.H.
Farquhar, G.D.
Saffigna, P.G.
Dieters, M.J.
Title Variation in branchlet ?13C in relation to branchlet nitrogen concentration and growth in 8-year-old hoop pine families (Araucaria cunninghamii) in subtropical Australia
Formatted title
Variation in branchlet δ13C in relation to branchlet nitrogen concentration and growth in 8-year-old hoop pine families (Araucaria cunninghamii) in subtropical Australia
Journal name Tree Physiology   Check publisher's open access policy
ISSN 0829-318X
1758-4469
Publication date 2000-09
Sub-type Article (original research)
DOI 10.1093/treephys/20.15.1049
Open Access Status Not Open Access
Volume 20
Issue 15
Start page 1049
End page 1055
Total pages 7
Place of publication Victoria, B.C., Canada
Publisher Oxford
Language eng
Subject 070507 Tree Improvement (Selection and Breeding)
070508 Tree Nutrition and Physiology
Formatted abstract
Carbon isotope composition (δ13C) of branchlet tissue at nine canopy positions, and nitrogen concentration (N(mass)) at four canopy positions, were assessed in 8-year-old hoop pine (Araucaria cunninghamii Ait. ex D. Don) trees from 23 half-sib families, grown in six blocks of a progeny test in southeastern Queensland, Australia. There was considerable variation among sampling positions, families and blocks in both δ13C and N(mass). The δ13C was positively related to N(mass) only for samples from the upper outer crown (P < 0.005). Phenotypic correlations existed between tree growth and canopy δ13C. Branchlet δ13C of the inner and lower outer crown was positively related (P < 0.037) to tree height, but δ13C in branchlets of the upper outer crown was not related to tree height, or was related negatively (P < 0.045). There were significant differences in δ13C between hoop pine families for six canopy positions (upper canopy positions as well as lower canopy positions on the northern side), with heritabilities greater than 0.40. The significance of these findings is discussed in relation to water and light competition within the tree canopy of hoop pine.
Keyword stable carbon isotope composition
water-use efficiency
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
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