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Bradley, P., T. Barb, N. Bélanger, 2010: Predicting the productivity of a young hybrid poplar clone under intensive plantation management in northern Alberta, Canada using soil and site characteristics. New Forests 39(1): 89−103.
Castellani, C., G. Scrinzi, G. Tabacchi, V. Tosi, 1984: Inventario Forestale Nazionale Italiano (I.F.N.I.), Tavola di cubatura a doppia entrata, 85−111, Trento.
Christersson L., 2010: Wood production potential in poplar plan­tations in Sweden, Biomass & Bioenergy, Vol. 34: 1289−1299, Uppsala
Dhillon, G. P. S., A. Singh, D. S. Sidhu, 2010: Variation, inheritance and correlation og growth characteristics of Populus deltoides Bartr. At various ages in the central plain region of Punjab, India. Forestry Studies in China. Vol. 12 (3): 126−136
Falconer, D. S., 1981: Introduction to quantitative genetics, Long­man Group Ltd., 340 str., London.
Isik F., F. Toplu, 2004: Variation in juvenile traits of natural black poplar (Populus nigra) clones in Turkey, New Forests 27: 175− 187.
Kajba, D., 1991: Procjena genetskog heterogeniteta-nasljednosti i genetske dobiti za neka gospodarski važna svojstva u klonskim testovima stablastih vrba. Šum. list 10–12: 449−460.
Kajba, D., S. Bogdan, 1999: Procjena genetskih parametara u klonskim testovima crnih topola (Sekcija Aigeiros). Šum. list 10−12: 3−10.
Kang, H., 1985: Juvenile Selection in Tree Breeding: Some mathematical models, Silvae Genetica 34(2-3): 75−84.
Krstinić, A., 1967: Procjena stupnja nasljednosti visina i pro­mjera za bijelu vrbu (Salix alba L.) izračunata iz klonskog testa kod starosti biljaka 1/1. Šum. list 91: 48−54.
Krstinić, A., 1984: Fenotipska stabilnost, adšptabilnost i produktivnost nekih klonova stablastih vrba. Glas. šum. pokuse. Pos. izd. 4: 5−24.
Krstinić, A., Kajba, D., 1993: Oplemenjivanje brzorastućih li­sta­ča, Glas. šum. pokuse, pos. izd. 4: 59−72, Zagreb.
Lin, J. Z., L. Zsuffa, 1993: Quantitative genetic parameters for seven characters in a clonal trial of Salix eriocephala. II. Genetic and environmental correlations and efficiency of indirect selection. Silvae Genetica, Vol. 42 (2-3): 126−131.
Mohan, C. A., W. K. Randall, 1971: Inheritance and correlation of growth characters in Populus deltoides. Silvae Genetica, Vol. 20 (5-6): 182−184
Pichot Ch., E. Teissier du Cros, 1988: Estimation of genetic parameters in the European black poplar (Populus nigra L.). Consequence on the breeding strategy, Ann. Sci. For., Vol. 45 (3): 223−238.
Pliura, A., S. Y. Zhang, J. MacKay, J. Bousquet, 2007: Genotypic variation in wood density and growth traits of poplar hybrids at four clonal trials. Forest Ecology and Management 238: 92−106.
Potočić, N. 2006: Utjecaj gnojidbe dušikom na rast i razvoj klonova nekih vrsta topola (Populus spp.) u porječju Drave kod Va­raždina. Disertacija, Šumarski fakultet Sveučilišta u Zagrebu.
Randall, W. K., D. T. Cooper, 1973: Predicted genotypic gain from cottonwood clonal tests. Silvae Genetica, Vol. 22 (5–6): 165−167.
Sharma, Jp., Nb. Singh, Hp. Sankhyan, P. Chaughary, Sk. Huse, 2011: Estimates of genetic parameters of newly introduced tree willow clones in Himachal Pradesh, India, Vol. 43 (3): 487−501.
Singh, N. B., D. Kumar, G. S. Rawat, R. K. Gupta, K. Singh, S. S. Negi, 2001: Clonal evaluation on poplar (Populus deltoides Bartr.) in eastern Uttar Pradesh. II-estimates of genetic parameters in field testing. Indian Forester, Vol. 127 (2): 163−172.
Wright, J. W., 1976: Introduction to Forest Genetics. Academic Press, 463 str., New York.
Yu, Q., P. Pulkkinen, 2003: Genotype-environmental interaction and stability in growth of aspen hybrid clones, Forest Ecology and Management, Vol. 173: 25−35.
Summary

research into phenotypic stability, adaptability and productivity of poplar clones at younger plantation was conducted in the lower course of the River Drava and the tributary of the River Danube in the eastern Croatia. In this area, the construction of river infrastructure has led to severe changes in the water regime. It is for this reason that the selected poplar clones should be adapted to the specific new condition of low groundwater levels. The assessment of genetic parameters, productivity and phenotypic stability for 14 poplar clones at plantation age of 2+5 years were evaluated in five clonal trials in the area of Eastern Croatia. The tests were set up at planting distances of 6 × 6 m randomized with 16 plants per block and four repetitions. At the moment of experimental plot establishment, the planting material was 1/2 and 2/3 years old. Statistically significant interclonal variability in production and survival was found in particular clonal tests. Mean survival in the clonal test established with plants aged 1/2 years was 72 % on average, whereas it was 95 % in the test with plants aged 2/3 years, which suggests that using of planting material at age 2/3 years is much more successful. Research on adaptability and genotype × environment interaction were conducted for the same eight poplar clones in three trials. From a silvicultural standpoint, the most suitable clones for generating optimal modifications, as a rule, were those of high phenotypic instability. Their cultivation is justified on optimal sites, as well as on less favourable sites when are provided agrotechnical measures and applied adequate protection measures. Based on the size of regression coefficients and regression analysis, it can be concluded that the tested clones can be divided, in terms of phenotypic stability and productivity, into three groups: a) phenotypically stable clones