INVESTIGATIONS ON THE GERMINATIVE POTENTIAL AND MITOSIS ACTIVITY IN EUROPEAN LARCH SEEDS FROM POLITA CU CRINI RESERVE / NATIONAL PARK CEAHLĂU

• Main Authors: Liviu Fartais, Marian Rasca
• Format: Article
• Language: English
• Published: "Alexandru Ioan Cuza" University of Iași 2013-05-01
• Series: Analele Ştiinţifice Ale Universităţii Alexandru Ioan Cuza din Iași,Sectiunea II A : Genetica si Biologie Moleculara
• Online Access: http://www.gbm.bio.uaic.ro/index.php/gbm/article/view/1055
• ISSN: 1582-3571; 2248-3276

The European Larch seeds germination is often weak (in many years the germination rate is less than 50%) but in many large and natural arboreta the consanguinity phenomenon is limited by efficient and complex genetic mechanisms which hinder the consanguine depression expression. Fortunately, in the massive natural arboreta an obvious danger concerning the consanguinity effects it is far to be a real issue. The experiment initiated in our laboratory (Fundamental Biological Processes Laboratory) showed that the the germinative capacity of larch seeds from the Ceahlău National Park (harvested in 2009, in 3 different altitude points /820, 1240 and 1350 m) registered a relative low level. As a result of the microscopic investigation it has registered a small diminution of the mitotic index value (0,24-0,22). The investigations on European Larch seed samples from the Ceahlău National Park can be included in the research area regarding the evaluation of consanguinity level in the natural limited or fragmental arboreta of the most important forestry species. It is very important to continue and enlarge the specific researches to achieve a more rigorous control and to investigate the proportion of the consanguinity phenomenon in European Larch limited and fragmental arboreta.