Seed pretreatments and nursery regimes for raising Macedonian pine (Pinus peuce Grisebach) |
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| Authors: | MASON W L; NEGUSSIE G; HOLLINGSWORTH M K |
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| Institution: | Silviculture (North) Branch, Forestry Authority, Northern Research Station Roslin, Midlothian, EH25 9SY, Scotland |
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| Abstract: | Four nursery experiments were carried out between 1984 and 1989to investigate ways of improving the germination and growthof Pinus peuce seedlings. In each of three germination experiments,the highest germination percentage was achieved with the longestduration of stratification. In the same experiments, bettergermination was usually achieved using alternating warm (c.20°C) and cold (2°C) pretreatments rather than coldpretreatment alone. The treatments that gave the best germinationwere generally those which provided the best height growth.In an experiment examining the effect of different nutrientsupon the growth of 1-year-old seedlings, height and root collardiameter were increased in the presence of nitrogen. However,these parameters were depressed by the presence of phosphate,potassium and magnesium. |
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