Morphological features of cones and seeds of Juniperus excelsa M.-Bieb. in the Mountainous Crimea
Olesya O. Korenkova, Candidate of Biological Sciences, Associate Professor
Moscow State University Of Civil Engineering (National Research University), Moscow, Russia, o.o.korenkova@mail.ru, https://orcid.org/0000-0001-6482-7312
Abstract
The article presents the results of morphometric studies of the generative sphere of J. excelsa in the Mountainous Crimea. The pine cones of the Crimean population of J. excelsa do not reach the sizes characteristic of individuals growing in the main part of the range. The main factors influencing the development of pine cones and seeds have been identified, including the height above sea level and the exposure of the slope on which the stands grow. The generative sphere of J. excelsa reaches its maximum development in areas with southeastern, eastern and western exposures ranging from heights of 50 to 300 m above sea level. The pine cones J. excelsa of the Mountainous Crimea contain from 2 to 9 seeds, which is much more than described in literary sources for the Mediterranean, where 3—6 seeds are formed. 60% of the cones include 5—6 seeds each. The size of the seeds is also mainly influenced by the altitude factor, accounting for 32.5%. The weight of the seeds varies widely from 17.2 to 56.8 g. At the same time, the maximum weight of the cones does not always correspond to the greater fulfillment of the seeds, but depends on their parameters.
Key words
Juniperus excelsa M.-Bieb., pine cones, seeds, Mountainous Crimea, abiotic factors.
For citation:
Korenkova O. O. Morphological features of cones and seeds of Juniperus excelsa M.-Bieb. in the Mountainous Crimea. Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2023, no. 4 (48), pp. 65—77. DOI: https://doi.org/10.32516/2303-9922.2023.48.4.
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