Growth of Populus euramericana

G.A. Pieters

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    10 Citations (Scopus)


    Growth curves of successive leaves of Populus euramericana (Dode) Guinier ‘Robusta’ have been determined. With ample supply of water and nutrients the growth of a poplar shoot follows a fixed pattern: an initial logarithmic acceleration phase followed by a stationary phase in which leaves of equal size are produced at a constant rate. Analysis of growth curves of leaves enabled the growth curves of leaf primordia to be predicted. These primordial growth curves are compared to the indirectly determined growth curves of primordia by measuring the lengths of successive leaf primordia in the apex during the stationary phase of growth. The increase in length of successive leaves in the acceleration phase of growth continues for a longer period at high than at low irradiace. The relative growth rates of leaf primordia, leaves and internodes are discussed in terms of shoot growth and phyllotaxis.
    Original languageEnglish
    Pages (from-to)455-462
    JournalPhysiologia Plantarum
    Issue number4
    Publication statusPublished - 1983

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