Morphological features of Delphinium sergii Wissjul. leaves in ontogeny
Journal Title: Modern Phytomorphology - Year 2016, Vol 10, Issue
Abstract
There are represented results of the study on leaf shape and its morphological diversity of the Delphinium sergii Wissjul. which is an endemic species of Eastern Black Sea Coast and was introduced in the culture at the M.M. Gryshko National Botanical Garden NAS of Ukraine. It is found that D. sergii is characterized by heterophylly and morphological variability of leaf blades which is manifested during ontogeny, in process of formation of its vegetative and generative shoots. The correlation of the dissection degree of the leaf blades with their formation and age has been established. More deeply dissected leaves are «older» while with complete laminas are more «younger». During the ontogenesis firstly occurs the complication of a simple lamina in seedlings by its division into segments. And, as a result, along the shoot the complication from lower to middle formations and further simplification of leaf structure in upper formation in generative individuals is observed. Formation of different by shape leaves in individuals of the same age stage as well as of the same age depends from conditions of lighting, soil moisture, crop density, and genetic heterogeneity, and therefore – from morphological plasticity of individuals in different conditions of growth.
Authors and Affiliations
A. Gnatiuk
Keywords
Related Articles
- EP ID EP183153
- DOI 10.5281/zenodo.155367
- Views 65
- Downloads 0
New locality and confirmation of some historical data for critically endangered sozophyte Nigella arvensis L. in Southern Poland
Nigella arvensis L. is a rare archaeophyte which was previously recorded in 244 localities in Poland. It occurred in segetal associations and in vicinity of xerothermophilous thickets and grasslands. However in 21st cent...
The features of leaf anatomical structure of some Rhododendron species from section Ponticum
The article represents a comparative anatomical analysis of leaves of Rhododendron makinoi, R. degronianum, R. callimorphum and R. brachycarpum. It was shown that leaves of R. makinoi have most pronounced xerophytic feat...
Pollen morphology of some Geranium subgenus Robertium species of Iran
Geranium (Geraniaceae) comprises more than 23 annual or perennial species in Iran. There is no study in Iran with pollen morphology emphasize. The main aim of this study is to find diagnostic pollen characters in studied...
Anatomical structure of the stem and drought resistance of Aylostera flavistyla, Mammillaria bocasana and Echinocactus grusonii
The anatomy of Aylostera flavistyla, Mammillaria bocasana and Echinocactus grusonii stems was studied. Different trends of plants’ adaptation to condition of water deficit were identified. It was shown that the most drou...
Ranunculus polyrhizos as a new record for Iran, with ecological and micromorphological evidence
Ranunculus polyrhizos is reported as a new noteworthy record for the flora of Iran. This species was collected from alpine dry gravelly slope in Talesh Mountains. Taxonomic remarks and notes geographical distribution and...