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Determination of Optimum Seed Sources for Paper-pulp Wood of Masson Pine Effects of various seed sources and different storage conditions on seed germination rate of Valeriana officinalis Performances of Ceratoides lanata Plants of Different Seed Sources in Arid Desert Regions SEEDLING STAGE EXPERIMENT ON PROVENANCES OF CASUARINA A REPORT ON THE PROVENANCE TEST OF ACACIA MANGIUM THE EIGHT YEAR RESULT FROM A SPECIES AND PROVENANCE TEST OF LARCH Seed Source Selection of Loblolly Pine for Jianghuai Area in China A Study on Cold Tolerance of Various Seed Sources of Masson Pine Variation of dormancy characteristic of different Pinus bungeana seed sources GEOGRAPHIC VARIATION IN FOLIAR MINERAL ELEMENT CONCENTRATIONS OF PINUS ARMANDII SEED SOURCES