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PRELIMINARY REPORT ON INTERSPECIFIC HYBRIDIZATION IN FOREST TREES

L. P. V. Johnson, C. Heimburger

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Abstract

Interspecific hybridization in various forest tree genera gave the following results: Populus, 43 crosses; Picea, 12; Pinus, 4; Betula, 14; Fraxinus, 5; Ulmus, 7; and Tilia, 9. The hybridity of most of these materials has been proved or strongly indicated by various criteria; but for some of the materials, hybridity is assumed on the basis of seedling production under conditions that largely precluded the possibility of self- or chance-pollination.

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What this paper is about

Interspecific hybridization in various forest tree genera gave the following results: Populus, 43 crosses; Picea, 12; Pinus, 4; Betula, 14; Fraxinus, 5; Ulmus, 7; and Tilia, 9. The hybridity of most of these materials has been proved or strongly indicated by various criteria; but for some of the materials, hybridity is assumed on the basis of seedling production under conditions that largely precluded the possibility of self- or chance-pollination.

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OpenAlex reports 16 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Interspecific hybridization in various forest tree genera gave the following results: Populus, 43 crosses; Picea, 12; Pinus, 4; Betula, 14; Fraxinus, 5; Ulmus, 7; and Tilia, 9. The hybridity of most of these materials has been proved or strongly indicated by various criteria; but for some of the materials, hybridity is assumed on the basis of seedling production under conditions that largely precluded the possibility of self- or chance-pollination.

Key concepts: Interspecific competition, Fraxinus, Interspecific hybridization, Botany, Tilia, Biology, Seedling, Hybridity

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