Journal of Applied Genetics 42(4), 2001, pp. 449-466

Genetic variation of F1 hybrids from controlled crosses between Pinus montana var. rostrata and Pinus sylvestris in morphological needle traits

Maria A. BOBOWICZ, Bruno R. STEPHAN, Wieslaw PRUS-GLOWACKI

Abstract: One hundred and seventeen hybrids, representing ten families from controlled crosses between Pinus montana var. rostrata and Pinus sylvestris, were examined in respect to six morphological traits of two-year-old needles. The biometric data obtained from the measurements provided a basis for multivariate statistical analyses, including discriminant analysis and Mahalanobis distances as principal methods. The analysed families formed two complexes, which were significantly different. The main traits responsible for the distinction were numbers of stomatal rows on both sides of the needles.

Key words: Pinus montana, Pinus mugo, Pinus sylvestris, F1 hybrids, morphology of needles, multivariate analysis.

Correspondence: M.A. BOBOWICZ, Department of Genetics, Adam Mickiewicz University, ul. Miedzychodzka 5, 60-371 Poznan, Poland, e-mail: mabwa@main.amu.edu.pl