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Promotion of cone and seed production on Sitka spruce by gibberellin application

โœ Scribed by P. B. TOMPSETT; A. M. FLETCHER; GILLIAN M. ARNOLD


Book ID
114838498
Publisher
Association of Applied Biologists
Year
1980
Tongue
English
Weight
620 KB
Volume
94
Category
Article
ISSN
0003-4746

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## Application. Girdfing in combination with a single stem injection of the growth regulator gibberellin m4/7 call be a highly cost-effective treatment for enhancing seed yield in Douglas-fir seed orchards. Diminished tree vigor and flowering response to biennial retreatment can result, however, u