Page 83 - Zbornik_Konf_2019

https://doi.org/10.15414/2019.9788055220703

4 International Scientific Conference Abstracts Book
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MORPHOMETRIC LEAF VARIATION OF VARIOUS CULTIVARS CRABAPPLE

Inna Goncharovska, Volodymyr Kuznetsov
M.M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine, Kyiv,
Ukraine; E-mail.: Inna_Lera@ukr.net
The study of intraspecific variability has both scientific and theoretical and practical
significance. M.I. Vavilov (1987) attached great importance to the study of intraspecific
variability for the knowledge of the species as a system.
The structure of the leaf blade, the size, the features of the placement of leaves on the
plant, their morphological parameters, and morphometric indicators are important features
both for identifying the cultivar and for further breeding, especially if they are related to the
decorative properties of plants (Goncharovska et al., 2018).
This study was carried out in order to determine the leaf characteristics of some 14
crabapple genotypes in the M.M. Gryshko National Botanical Garden (Kyiv, Ukraine) and also
to determine whether the leaf morphometric characteristics could be used for differentiation
of genotypes.
The collection of leaves of the objects of the study was carried out in the summer
periods from the middle part of the annual plant escape of the mature stage of the generative
period. It was selected from the tree of each cultivar 30 leaves from the four sides of crown.
The total number of selected leaves was 1680. For each leaf, five characteristics were
measured. In this study, leaf length in mm; leaf width in mm; petiole length in mm; petiole
width in mm; petiole thickness in mm. Due to the fact that the apple tree has highly prone to
hybridization with closely related species of apple trees, selected plant specimens with
pronounced morphological species characteristics.
Morphometric parameters were as follows: leaf length from 61.20 (Van Ezeltin) to 84.32
(Golden Hornet) mm, leaf width from 28.1 (Van Ezeltin) to 48.62 (Pink plakucha) mm, petiole
length from 12.98 (White Jet) to 35.21 (King Beauty) mm, petiole width from 0.48 (King
Beauty) to 1.3 (Royalty) mm, petiole thickness from 0.57 (King Beauty) to 1.41 (Butterbell )
mm. The shape indexes of leaves were found ranging from 1.58 (Van Ezeltin) to 2.17
(Everest). Analysis of the coefficient of variation (CV) showed high variability in
morphometric characteristics between Malus baccata samples.
Data showed that the petiole width and petiole thickness is the most variable signs
(from 10.01 to 26.84 and from 6.52 to 35.91 %). Other studied characteristics have an average
level of variability.
According to the morphological parameters of the crabapples leaf blade, those that are
important in the further selection process were identified. Having these data can pre-select
the source material for the parameters that would like to receive in the future hybrid
genotypes.

Keywords: Crabapple, cultivar, leaf, morphometric parameters.
Acknowledgments
The publication was prepared with the active participation of researchers in international network
AgroBioNet, as a part of the International Program 'Agricultural Biodiversity to Improve Nutrition,
Health and Quality of Life'.

4 International Scientific Conference Agrobiodiversity Nutrition, Health and Quality of Human and Bees Life |83
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September 11–13, 2019