Aberrant phyllotactic patterns in cones of some conifers: a quantitative study | Zendy

Veronika Fierz | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Aberrant phyllotactic patterns in cones of some conifers: a quantitative study

Author(s) -

Veronika Fierz

Publication year - 2015

Publication title -

acta societatis botanicorum poloniae

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.297

H-Index - 29

eISSN - 2083-9480

pISSN - 0001-6977

DOI - 10.5586/asbp.2015.025

Subject(s) - fibonacci number , quotient , golden ratio , biology , mathematics , botany , tree (set theory) , combinatorics , geometry

The scale patterns of 6000 cones from one single tree of Pinus nigra Arn. have been examined. Apart from the main Fibonacci pattern with 8 and 13 parastichies, nine aberrant spiral patterns with Fibonacci-type sequences have been found. They are quite rare and occur with different frequencies. The parastichy quotient 8/13 of the prevalent pattern is very close to the golden ratio 0.618. In case of the black pine it appeared that the greater the deviation of the parastichy quotient m/n from 0.618, the rarer the pattern. Similar results obtained for the sample of 1506 cones collected from three individual trees of larch (Larix decidua Mill.) suggest a true correlation between the frequency of a pattern and the deviation of its parastichy quotient from the golden ratio

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research