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The flotation technique was used to segregate non-viable from viable Siberian larch (Larix Sibirica Ledeb.) seeds using water as the floating media. The non-viable seeds floated while the viable ones sank. Without stratification, the average percent germination of the floating and sunken seeds...
Stem cuttings of balsam poplar and three poplar hybrids were directly planted onto reclamation material on the tailings dyke slope. The overall rooting success was poor. The hybrids, however, rooted significantly better than the native balsam poplar. Cuttings require precise environmental...