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Phyton (Buenos Aires)
On-line version ISSN 1851-5657
Abstract
JURADO, E; MARQUEZ-LINARES, M and FLORES, J. Effect of cold storage, heat, smoke and charcoal on breaking seed dormancy of Arctostaphylos pungens HBK (Ericaceae). Phyton (B. Aires) [online]. 2011, vol.80, n.1, pp.101-105. ISSN 1851-5657.
We evaluated the effect of cold storage and fire-related cues on seed germination of Arctostaphylos pungens HBK (Mexican Manzanita), a common shrub in poorly managed pine-oak forests in Durango, Mexico. Because this shrub has a high density in previously burnt forests, we investigated the effect that high temperatures, smoke and charcoal might have on seed germination of this species. Seeds were collected fresh from the shrubs. The highest germination was 30% for seeds that had been cold stored, heat shocked, past through smoke and watered with diluted charcoal.
Keywords : Seed ecology; Germination.