ISSN: 0024-1148 Russian Journal of Forest Science. 2012, No. 2, pp. 35-46
| PHENOLOGICAL AND REPRODUCTIVE FEATURES OF SPRUCE IN PROVENANCES OF LENINGRAD REGION |
| Nikolayeva M.A., Zhigunov A.V. Saint Petersburg Forestry Research Institute (FBI SPbFRI): Institutsky ave. 21, Saint-Petersburg, 194021, Russia |
E-mail: spb-niilh@inbox.ru |
Received: 5 april 2007
The data on the comparative analysis of the phenological development of seed breeds of Picea abies (L.) Karst, Picea obovata Ledeb. and spruce from the introgressive hybridization zone are presented. The climatype breeds from the adjacent regions showed the closest compatibility with the local climatype. The growing period of the breeds grown in the Leningrad region from seeds collected in warmer and more humid areas starts later, and the period for the growth of shoots becomes longer. The farther to the north and east was the provenance of the tested seeds, the lower was the cone yield in the plantations grown from those seeds in the Leningrad region. The plantations grown from Udmurt and Tatar seeds had the lowest reproduction indices, while they were the highest in the plantations from the Transcarpathian seeds.