ibclogo XVI International Botanical Congess


Abstract Number: 4348
Poster No. = 1286


REPRODUCTION BIOLOGY AND CONSERVATION OF CAUCASIAN ENDEMIC SPECIES PAEONIA CAUCASICA SCHIPCZ. AND HELLEBORUS CAUCASICUS A. BR.


Zaal Gamtsemlidze, Marina Eristavi, Tsira Mikatadze-Pantsulaia, Lia Kobakhidze, Institute of Botany, Georgian Academy of Sciences, Kojori Road, 380007, Tbilisi, Georgia


Reproduction biology of Caucasian endemic species - Paeonia caucasica and Helleborus caucasicus - has been studied in the Tbilisi Central Botanical Garden. These species are highly decorative, growing in the surroundings of big town which makes them easily accessible and, hence they are harvested in large quantities during flowering. Paeonia caucasica is perennial herbaceous plant with tuber-type thickened underground parts. Next year sprouts are generated in renewal buds in Autumn. Formation of flower occurs in December. Species is characterized by protandry. Fertility of pollens is 79,3%. Potential and real seed production is high. Vegetation starts in the middle of March with blossoming in April. Helleborus caucasicus is perennial herbaceous plant with thickened rhizoms and lot of supplementary roots. The generative organs are formed in renewal buds in June and flowers are developed in September. Fertility of pollens is 89%. Potential and real seed production is high (70%). The blossoming starts in January and lasts until end of March. the seeds ripen in May. The seedling capacity is high - 70%.+ Both species are well adapted ex situ, which insures their successful conservation, as well as successful cultivation.


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