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Publication Type J
Authors Perez-Fernandez, MA; Rodriguez-Echeverria, S
Author Full Name Perez-Fernandez, MA; Rodriguez-Echeverria, S
Title Effect of smoke, charred wood, and nitrogenous compounds on seed germination of ten species from woodland in Central-Western Spain
Source JOURNAL OF CHEMICAL ECOLOGY
Language English
Document Type Article
Author Keywords smoke; charred wood; Cistaceae; Poaceae; Fabaceae; Asteraceae; pH; dormancy
Keywords Plus PLANT-DERIVED SMOKE; FIRE; CALIFORNIA; AUSTRALIA; DORMANCY; FOREST; TEMPERATURES; MANAGEMENT; SEEDLINGS; INTENSITY
Abstract The effect of smoke, charred wood, and nitrogenous compounds on germination was tested on 10 species of the Cistaceae, Poaceae, Fabaceae, and Asteraceae, from fire-prone, shrubby woodlands in central-western Spain. Dry seeds were exposed to smoke, by watering with distilled water-charred wood suspensions, or NaNO2, KNO3, NH4Cl, and NH4NO3. Smoke enhanced germination in 9 of 10 of the species. In species of Poaceae, germination was stimulated by 20 min of smoke exposure. In Asteraceae and Fabaceae species, 10 min of smoke exposure was the most effective treatment for enhancing germination. Three species-Cistus ladanifer, Cistus crispus, and Cistus monspeliensis-had a positive response to 20 min of smoke exposure; germination of Cistus salviifolius L. was also enhanced after 10 min. The effect of charred wood was variable, with no consistent germination pattern within the families. Trifolium angustifolium and Retama sphaerocarpa showed no stimulation of germination under most of the charred wood concentrations. Similarly, germination of Senecio jacobea under the charred wood treatment did not surpass that of the control. NaNO2 promoted seed germination in Dactylis glomerata (10 mM), Cistus ladanifer (1, 10, and 25 mM), and Cistus crispus (1 and 10 mM). KNO3 enhanced germination in Dactylis glomerata (1 and 25 mM), Dittrichia viscosa (10 and 25 mM), C. ladanifer (1, 10, and 25 mM), Cistus crispus (1 and 25 mM), and C. salviifolius aud C. monspeliensis (25 mM). NH4Cl induced germination of Dactylis glomerata and Dittrichia viscosa (1 mM), and Cistus species germinated best in 25 mM of this salt. NH4NO3 induced germination only in Cistus species. Holcus lanatus had the highest level of germination regardless of treatment.
Author Address Univ Extremadura, Dept Ecol, E-06071 Badajoz, Spain
Reprint Address Perez-Fernandez, MA (reprint author), Univ Extremadura, Dept Ecol, Ave Elvas S-N, E-06071 Badajoz, Spain.
ResearcherID Number Rodriguez-Echeverria, Susana/I-1730-2015
ORCID Number Rodriguez-Echeverria, Susana/0000-0002-2058-3229; Perez-Fernandez, Maria/0000-0001-8234-1893
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Cited Reference Count 54
Times Cited 59
Total Times Cited Count (WoS, BCI, and CSCD) 62
Publisher KLUWER ACADEMIC/PLENUM PUBL
Publisher City NEW YORK
Publisher Address 233 SPRING ST, NEW YORK, NY 10013 USA
ISSN 0098-0331
29-Character Source Abbreviation J CHEM ECOL
ISO Source Abbreviation J. Chem. Ecol.
Publication Date JAN
Year Published 2003
Volume 29
Issue 1
Beginning Page 237
Ending Page 251
Digital Object Identifier (DOI) 10.1023/A:1021997118146
Subject Category 15
Document Delivery Number Biochemistry & Molecular Biology; Ecology
Unique Article Identifier Biochemistry & Molecular Biology; Environmental Sciences & Ecology
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