Larix gmelini(Rupr.)Rupr. 1.5 generation seed orchard construction technology research

The key technology of Larch seed orchard of Larix gmelini(Rupr.)Rupr.1.5 generation: the tree from the collection zone the most excellent clonal tree; the selection of suitable garden site, and carry on the detailed planning, to provide scientific basis for the implementation of construction and production management; the selection of robust growth, no plant diseases and insect pests of rootstock and scion of pith forming layer attached;④ clonal disposition by grouping complex dislocation small cluster arrangement method(also called bidirectional retrograde mesh type dislocation method), the colonization series, management to carry out intensive.

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