Classifying aerial stems of woody plants by developmental stages using relative growth rate

•  Here we propose a new method for classifying aerial stems of woody plants by developmental stage, using the logarithmic reciprocal of relative growth rate (LRR) as an indicator of developmental stage. •  Stem analyses were conducted on naturally dead aerial stems of Lindera umbellata to clarify t...

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Veröffentlicht in:The New phytologist. - 1979. - 161(2004), 2 vom: 20. Feb., Seite 427-433
1. Verfasser: Fujiki, Daisuke (VerfasserIn)
Weitere Verfasser: Kikuzawa, Kihachiro
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article LRR-structured model Lindera umbellata RGR shoot demography stage
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520 |a •  Here we propose a new method for classifying aerial stems of woody plants by developmental stage, using the logarithmic reciprocal of relative growth rate (LRR) as an indicator of developmental stage. •  Stem analyses were conducted on naturally dead aerial stems of Lindera umbellata to clarify the changes in LRR over a lifetime. LRR, number of current-year shoots, and the recruitment and mortality rates of shoots of living stems were investigated. •  LRR was at a minimum value at age 1 yr and at a maximum just before each stem died. There was little difference between the ranges of stem LRR. The recruitment and mortality rates of shoots depended on LRR. •  LRR satisfied the necessary and sufficient condition for a variable as an indicator of stage better than either age or size. The LRR-structured model accurately demonstrates the real demographic processes in shoot populations over a lifetime of aerial stems. This result supports the utility of LRR as an indicator of stage. The method using LRR can be applied to analyses for other growth processes 
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