The influence of heat and mechanical scarification on the germination capacity of Quercus pyrenaica seeds

The germination capacity of Quercus pyrenaica seeds subjected to different temperatures (60°C, 100°C and 150°C for 1 and 5 minutes) and mechanical scarification was studied. Germination increased after mechanical scarification and heat treatment at 60°C for 1 minute. Germination percentages for the...

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Bibliographic Details
Published in:	New forests Vol. 16; no. 2; pp. 177 - 183
Main Authors:	Valbuena, L. (Leon Univ. (Spain). Facultad de Biologia), Tarrega, R
Format:	Journal Article
Language:	English
Published:	Dordrecht Kluwer 01-09-1998 Springer Nature B.V
Subjects:	Agronomy. Soil science and plant productions Animal and plant ecology Animal, plant and microbial ecology Biological and medical sciences DAMAGE Demecology Economic plant physiology Embryo development. Germination Forest and land fires FOREST FIRES Forest management. Stand types and stand dynamics. Silvicultural treatments. Tending of stands. Natural regeneration Forestry Fundamental and applied biological sciences. Psychology GERMINATION Growth and development HEAT Heat treatment Phytopathology. Animal pests. Plant and forest protection Plants and fungi QUERCUS PYRENAICA SCARIFICATION Seed germination Seeds SOIL TEMPERATURE Stand types and stand dynamics. Silvicultural treatments. Tending of stands. Natural regeneration Weather damages. Fires Europe Spain Forests Germinability Heat treatment Seeds Scarification Mediterranean vegetation Germination Temperature effect Environmental factor Natural forest regeneration Ecophysiology Fagaceae Sexual reproduction Experimental study Mechanical treatment Dicotyledones Seed Angiospermae Quercus pyrenaica Hardwood forest tree Population dynamics Spermatophyta Mediterranean region Fire effect
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Summary:	The germination capacity of Quercus pyrenaica seeds subjected to different temperatures (60°C, 100°C and 150°C for 1 and 5 minutes) and mechanical scarification was studied. Germination increased after mechanical scarification and heat treatment at 60°C for 1 minute. Germination percentages for the rest of the treatments were lower than those for the control, but statistically significant differences (p < 0.05) were only observed between 150°C for 5 minutes and the other treatments (except for 150°C for 1 minute). These results show that seed germination of Quercus pyrenaica would not be affected by soil temperatures reached during a low intensity fire or by the action of agents which can mechanically damage the external coat.[PUBLICATION ABSTRACT]
Bibliography:	1998006463 F62
ISSN:	0169-4286 1573-5095
DOI:	10.1023/A:1006578802038