Features of a Biennial Shoot System as a Unit for Modeling Crown Development in Ulmus glabra Huds

Antonova, Irina S.; Bart, V. A.

doi:10.1134/s1995425520030026

Cited by 1 publication

(2 citation statements)

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“…on the way the tree crown structure began to develop at the early stage of its formation. Our studies allow us to approach this structure from the position of biennial shoot systems as minimal modular units in which spatial and temporal properties are most rigidly connected [4,5].…”

Section: Discussionmentioning

confidence: 99%

“…Separation of axes of different branching orders was carried out in accordance with the principles given in the literature [3]. Types of two-year shoot systems were determined according to the technique developed at the Department of Geobotany and Plant Ecology of St. Petersburg State University [4,5]. The following morphofunctional types of biennial shoot systems are distinguished in the crowns of tree plants of the temperate zone: "Growths", "Supergrowths", "Basic", "Narrow", "Filling", and "Choppers".…”

Section: Methodsmentioning

confidence: 99%

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The features of the biennial shoot systems of Ulmus glabra Huds. characteristic of the crown in the virginal age state

Televinova

Antonova

2021

BIO Web Conf.

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The morphological features of crowns were studied on the material of individuals of U. glabra of seed regeneration in the gaps of decaying three-hundred-year-old oak forests. We collected data on all crown shoots of five trees of young virginal age (from 10 to 18 years). The principal component method was used twice: first on the model tree to characterize features of the shoots biennial systems under the study, then to reveal ontogenetic and structural features of the crown organization of five virginal trees. Using the method of shoots biennial systems extraction allowed us to form a set of qualitative and quantitative characters reflecting crown structure properties of virginal trees of U. glabra, namely: properties of axes branching order, ontogenetic age of shoots in the crown, crown density, individual properties of tree crown structure.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%