. The testing of forest seeds during 25 years, 1887-1912 . tus amygdalina I9l0—11 (Crop 1909) 40 84 89 Eucalyptus gigantea 1908—09 (Crop 1904) 46 71 87 » » 1910—11 ( » 1909) 13 72 85 » globulus 1908—09 ( » 1904) 91 91 94 » » 1908—09 ( » 1907) 69 75 78 . » 1910—11 86 94 96 » Gunnii 1908—09 (Crop 1904) . 60 79 80 » » 1910—11 ( » 1909) . 61 93 94 » Stuartiana 1910—11 93 96 96 The extraordinary keeping power of the seed is striking. Con-sider, for example, E. amygdalina: seed of the 1904 crop germin-ated 90 % even after 4 years, and the same is


. The testing of forest seeds during 25 years, 1887-1912 . tus amygdalina I9l0—11 (Crop 1909) 40 84 89 Eucalyptus gigantea 1908—09 (Crop 1904) 46 71 87 » » 1910—11 ( » 1909) 13 72 85 » globulus 1908—09 ( » 1904) 91 91 94 » » 1908—09 ( » 1907) 69 75 78 . » 1910—11 86 94 96 » Gunnii 1908—09 (Crop 1904) . 60 79 80 » » 1910—11 ( » 1909) . 61 93 94 » Stuartiana 1910—11 93 96 96 The extraordinary keeping power of the seed is striking. Con-sider, for example, E. amygdalina: seed of the 1904 crop germin-ated 90 % even after 4 years, and the same is the case -with , E. globulus and E. Gunnii. The seed w^eight as ?well asthe number of seeds per kilogram refers here, as everywhere,only to the pure seed, not to the real value; for Eucalyptus seedis very often impure, since it contains a great deal of the remainsof the fruit capsules as with Alder and Birch seed, so that seedwith 70, 80 to 90 7o germinating capacity has usually only a realvalue of 15—20 TABLEI CONIFEROUS TREE SEEDS EUROPEAN, WEST-ASIATICAND NORTH-AFRICAN SPECIES


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectseeds, bookyear1915