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I). Kremer: FENOLOSKA ZAPAŽANJA CVATNJE NEKIH DRVENASTIH VRSTA U BOTANIČKOM VRTU Šumarski lisl br. 9 10, CXXV (2001). 475-4X0 Jurko vić, M., & Jurko vić, B., 1996: Introdukcija Starshova, N. P., 1972: The ´anthecology´ of Pheli aklimatizacija drvenastih egzota - četinjače - u lodendron amurense in the Middle Volga region, zagrebačkim parkovima. Sum. list 7 - 8(120): I. Ecology of flowering. Botanicheskii Zhurnal, 327-334. 57(11): 1402- 1412. Jurković, M., & Jurković, B., 1997: Prilog introdukciji Tikvić , I., 1997: Klimadijagram prema Waltheru za i aklimatizaciji drvenastih egzota - listače -u meteorološku postaju Zagreb - Grič. U: Matić, zagrebačkim parkovima. Sum. list 5-6(121): S. Meštrović, Š. & Vukelić, J. (ur.), Gospodare269- 276. nje šumama i šumskim prostorom na području Kramer , P. J., 1957: Thermoperiodism in Trees. In: grada Zagreba i Zagrebačke županije Šumarski Thimann, K. V., Critchfield, W. B. & Zimmerfakultet, Zagreb, 213 pp. mann, M. H. (eds.), The Physiology of Forest Urbani , N., 1914: Phenološke bilješke. Šum. list Trees, The Ronald Press Company, New York, 1(38): 16-20. pp. 573 - 580. Yoshino, M., Park-Ono, H. S., Omasa, K., Kai, Krüssmann , G., 1976-1978: Handbuch der LaubgeK. & Ta oda . H., 1996: Variations in the plant hölze. Band I-III, Paul Parey, Berlin und phenology affected by global warming. Climate Hamburg. change and plants in East Asia, Springer-Verlag K u k a v a, A. A., 1988: Flowering biology and producTokyo, Tokyo, pp. 93 - 107. tivity in some hazel cultivars in the Kolkhida Vajda, Z., 1946: Uzgajanje šuma. U: Šafar, J. (ur.), lowlands. Subtropicheskie Kul´tury, Georgia, Šumarski priručnik, II dio, Poljoprivredni naklaNo. 5, pp. 25-31 . dni zavod, Zagreb, pp. 615 - 724. Maks i mov, N. A., 1961: Fiziologija bilja. Dnevnik, We n t, F. W. 1944: Correlation between various physiNovi Sad, 467 pp. ological processes and growth in the tomato Phillips, R., 1980: Das Kosmosbuch der Bäume. plant. Amer. Jour. Bot. 31: 597 - 618. Gesellschaft der Naturfreunde Franckh´sche Went, F. W. 1953: Thermopcriodicity. In: F. Verdoorn Verlagshandlung, Stuttgart, 223 pp. (ed.) Vernalization and Photoperiodism -A Seletković , Z. & Tikvić , I., 1996: Fenološka moSymposium. The Ronald Press Co., New York. trenja hrasta lužnjaka (Quercus robur L.) u HrWent, F. W. 1956: The role of environment in plant vatskoj. U: Sever, S. (ur.), Zaštita šuma i pridogrowth. Amer. Scientist 44: 378 - 398. bivanje drva, Šumarski fakultet Sveučilišta u Zagrebu & Šumarski institut, Jastrebarsko, Zagreb, pp. 89-102. ZAHVALA - Acknowledgement Ovim putem zahavljujem mr. se. Biserki Juretić , mr. sc. Mati Jurkovi ć u i drugim djelatnicima Botaničkog vrta PMF-a u Zagrebu koju su mi omugućili da obavim ova istraživanja. SUMMARY: The time of the beginning, culmination and ending of the flowering was recorded on some species in genus Aesculus L., Magnolia L., Malus Mill, Paulownia Siebold et Zucc. and Viburnum L. during 1998 and 1999 in the Botanical garden of the Faculty of Natural Sciences and Mathematics University of Zagreb. It was noticed that some of the observed species flower approximately at the same time every year. We are talking about species which flower later in the spring and they are less affected by the temperature in the second part of the winter. Some of the species flower one year earlier than another, which depends on the beginning of the spring. Those species flower at the end of the winter or earlier in the spring and they are more effected by the warm period which can start in the second part of the winter. The temperature affects the most time when the flowering begins, while the culmination and the ending of flowering are the least affected. That is, the culmination of flowering doesn´t always follow the earlier time of the beginning of flowering. In this way the potential damage of plants caused by low temperature is reduced. 486 |