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Esta publicación ofrece al lector los aspectos básicos para el proceso de planeación de la recolección de semillas, partiendo de una definición de la demanda y analizando el proceso frente a la oferta de material proveniente de las fuentes semilleras existentes en un momento dado. Se discuten los...
The need for seed trap longevity, capture of heavy seed, and protection from predation in several forest types for long-term studies of seed production prompted seed trap design improvements. Critical improvements were achieved by painting the trap with a latex exterior gloss house paint, raising...
Nursery plots sown with the Summit Precision Seeder and the Oyjord Seeder were compared with plots oversown and hand thinned to desired spacings. We studied 26 seedlots of nine conifer species at five Forest Service, U.S. Department of Agriculture, nurseries. Results varied with nursery, species,...
The biological processes that affect seed production in natural southern pine are documented, and information that will allow foresters to manipulate stands in a manner to improve and predict seed production is provided. As a result, natural regeneration should become a more reliable technique.
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