Extraordinary accuracy in floret position of Helianthus annuus

• Autorzy: Okabe T.
• Języki publikacji: EN

Abstrakty

EN

Divergence angles were measured for inflorescences of Helianthus annuus with several hundreds to more than a thousand disk flowers. Quantitative analysis showed that the angles are robustly fixed in the vicinity of the ideal golden angle 137.508° as accurately as ~0.001°. The mean deviation from the ideal value varies for each sample. The results have important implications for phyllotaxis models, which are discussed by referring to a necessary modification proposed by Roberts.

Słowa kluczowe

EN

phyllotaxis; Compositae; floret position; Helianthus annuus

• Wydawca: -
• Czasopismo: Acta Societatis Botanicorum Poloniae
• Rocznik: 2015
• Tom: 84
• Numer: 1
• Opis fizyczny: p.79-85,fig.,ref.

Twórcy

autor

Okabe T.

• Graduate School of Integrated Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, 432-8561 Hamamatsu, Japan

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Identyfikatory

DOI

10.5586/asbp.2015.007