Silvics of Araucaria araucana

Discussion in 'Araucariaceae' started by timbercheap, Aug 4, 2005.

  1. timbercheap

    timbercheap Member

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    Does any one have information about the relation between whorls and age for this spp. i.e. one year = one whorl? Is there a germinant factor for I.D. of age on older plants? Is it determinant or non-determinant growth?
     
  2. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    There is no fixed relationship; some trees average close to a whorl a year, others a whorl every two years, or two whorls in three years, or varying from year to year; there is no relationship between a whorl starting and time of year.

    Source: A F Mitchell, Conifers in the British Isles. Forestry Commission Booklet 33 (1972).
     
  3. timbercheap

    timbercheap Member

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    Thank you very much. I was fairly certain that was the case; I required third party verification to win a little bet. Now I get the beer!
     

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