Bio-ecology of Taxus Baccata l. in Kakheti

The article discusses the bio-ecology of Taxus baccata L. in Kakheti (eastern Georgia), particularly in Tsinandali Park. Yew (Taxus baccata L.) preserved in Tsinandali Park (Telavi region, Georgia) was chosen as an object for long-lasting observation over plant vegetation. Vegetation of 47 new specimens were studied during the period 2001-2010. It was observed the buds opening, the vegetation finishing, the cambium active periods beginning and finishing, the sprout stiffen process, the rate and time of growth. The period between 2001 and 2004 is distinguished by the relatively intensive growth of yew samples. In 2004-2010 growth period was shortened. It is suggested, that shortening often growth period in yew specimen is related to the deficit of water in soil due to frequent drought and snowless winters in Telavi region in the last decade.Observation conducted on the peculiarities of cambial growth confirms that yew has strong ability of frost-resistance. We consider that the bio-ecological studies of yew tree, as an endangered species, and its implementation in decorative gardening will contribute to its conservation