Leaf size regularities inFestuca pratensisfrom the systemic viewpoint

Autor:	Sandra Valašinaitė, Alvydas Šimkūnas, Vitalij Denisov
Rok vydání:	2013
Předmět:	Apical dominance Shoot Botany Festuca pratensis Ordinal number Leaf size Poaceae Plant Science Length distribution Biology biology.organism_classification Ecology Evolution Behavior and Systematics Trophic level
Zdroj:	Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology. 147:629-637
ISSN:	1724-5575 1126-3504
DOI:	10.1080/11263504.2012.749957
Popis:	The influence of internal systemic factors on the size of fully grown leaves was investigated in the Poaceae plant Festuca pratensis. Using the systemic approach, the length of leaves of different ordinal numbers along a shoot and the length of leaves of the same ordinal number on different shoots were measured, analysing groups of shoots categorized as subsystems by the authors. It was found that the length of leaves regularly increased with an increase in the ordinal number of leaves along the shoot. The explanation could be systemic trophic relationships: the number of donor leaves increases, which expresses the shoot size factor, i.e. more assimilates are received by younger leaves, thus a vegetative developmental programme has been implemented. Another tendency was discovered as well: the length of the same numbered leaves also regularly increased with an increase in the shoot ordinal number. This increase is manifested in apical subsystems, while leaf length distribution in the basal subsystem is ir...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::051ab1a3a107ca255d111b8efb1520d2 https://doi.org/10.1080/11263504.2012.749957 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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