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Accelerated Birch breeding - in plastic greenhouses


, : Accelerated Birch breeding - in plastic greenhouses. Forestry Chronicle 49(4): 172-173

Describes the use of greenhouses up to 7.5 m high, at the Foundation for Forest Tree Breeding in Finland, to promote early flowering of Betula verrucosa ( male flowers in the third and female flowers in the fourth growing season from seed), planted as 1-year-old seedlings, without artificial heating or illumination. The first seed-crop was of acceptable quality. A trial of CO2 enrichment of the air, by burning propane, resulted in flowering in the second and third growing seasons respectively.

US$29.90


Other references

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