acropetal

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Related to acropetally: dichasia

acropetal

[ə′krä·pəd·əl]
(botany)
From the base toward the apex, as seen in the formation of certain organs or the spread of a pathogen.
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The initiation, ontogeny, and subsequent anthesis of the secondary capitulum is homologous to that of a synflorescence or collection of primary capitula (Classen-Bockhoff, 1992; Harris, 1994; Kunze, 1969; Rauh & Reznik, 1953); that is, the individual or primary capitula are initiated in an acropetal sequence and develop acropetally, but they then undergo anthesis basipetally.
Plant age was determined by counting the number of nodes acropetally from the first node above the cotyledons to the last unfolded sepal pair.
1980) and the tropical legume Macroptilium (Ridge & Rolfe, 1985), it has been determined that the infective zone is an acropetally moving region located between the root tip and the smallest emerging root hairs.