Abstract
Tobira Pittosporum (Pittosporum tobira) is an evergreen and broadleaf shrub with fragrant flowers. The introduction began in 1978. The plants blossomed and bore fruits in 1981. The seedlings grew up from seeding in 1982, then the freeze resistances of seedling were experimented with the Spartan Training System according to follow proper sequence and make steading progress rule. Some excellent plants were sifted out progressively. In order to enrich the afforestation materials in Jinan, it offers a new species.
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