Variability of morpho-anatomical characteristics of the needles of Picea omorika from natural populations in Serbia
2015
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
In the research on the variability of the morpho-anatomical properties
of the Serbian spruce (Picea omorika /PanC./ Purkyne), we investigated
seven characteristics of 2-year-old needles, collected from four natural
populations in Serbia. The hypodermis of the Serbian spruce subject to
our study is single layered. The needles sport 0-2 resin ducts,
predominantly of the external type (touching the epidermis). The average
values were as follows: 13.60mm (needle length), 1.49mm (needle width),
0.82mm (needle thickness), 22.83 mu m (cuticle+epidermis thickness),
17.51 mu m (hypodermis thickness), 0.74 (number of resin ducts), and
51.82 mu m (resin duct diameter). Needle width and thickness were the
most variable characteristics. Principle component analysis visualizes
an overlapping among the populations in the region of Mt. Tara and a
partial separation of the population from Milesevka Canyon. Cluster
analysis suggests the biggest differentiation between geographically
distant populations (Stula and Milesevka Canyon). All the analyzed
characteristics were compared with appropriate literature sources.
Кључне речи:
hypodermis; resin ducts; population variation; needle; Cuticle+epidermis; lengthИзвор:
Plant Biosystems, 2015, 149, 1, 61-67
DOI: 10.1080/11263504.2013.810180
ISSN: 1724-5575