Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran

Fire products (smoke, ash and heat) have widely been recognized as a germination cue for some species from both fire prone and fire-free ecosystems. It is an important factor for the understanding of vegetation dynamics and could have potential use for ecological management and rehabilitation of dis...

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Main Authors: A. A. Naghipour Borj, S. J. Khajeddin, H. Bashari, P. Tahmasebi, M. Iravani
Format: Article
Language:fas
Published: Isfahan University of Technology 2014-12-01
Series:Iranian Journal of Applied Ecology
Subjects:
Ash
Online Access:http://ijae.iut.ac.ir/browse.php?a_code=A-10-1-66&slc_lang=en&sid=1
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spelling doaj-ef5f654dd98d40dfa4608e8006ca0e112020-11-24T23:07:24ZfasIsfahan University of TechnologyIranian Journal of Applied Ecology2476-31282476-32172014-12-01397180Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, IranA. A. Naghipour Borj0S. J. Khajeddin1H. Bashari2P. Tahmasebi3M. Iravani4 Fire products (smoke, ash and heat) have widely been recognized as a germination cue for some species from both fire prone and fire-free ecosystems. It is an important factor for the understanding of vegetation dynamics and could have potential use for ecological management and rehabilitation of disturbed area. This study attempts to understand the effect of the main fire products (smoke, ash and heat) on germination of the three dominant species in the semi-arid rangelands of Feridan in Isfahan province including: Astragalus adscendens, Astragalus susianus and Astragalus verus. Six treatments including: 3 of heat (60°C, 80°C and 120°C), 1 of smoke, 1 of Ash, and 1 of control were tested in the current study. Results showed that the seeds were incubated in a germination chamber with a photoperiod of 12 h of light at 22.5°C and 12 h of darkness at 17.5°C. The three studied species had different responses against the used fire factors. Smoke and ash treatments did not modify the germination percentage of A. adscendens, but its germination was increased and significantly decreased in low heat (60°C) and severe heat (80 and 120°C) respectively. Germination percentage of A. verus was increased after the smoke treatment compared to the control treatment, but it did not increase the germination of A. susianus. Outcomes of further research would have important impacts also for conservation, environment management and ecosystem restoration in semi-arid rangelands.http://ijae.iut.ac.ir/browse.php?a_code=A-10-1-66&slc_lang=en&sid=1Smoke Ash Heat Vegetation dynamics Seed dormancy Astragalus.
collection DOAJ
language fas
format Article
sources DOAJ
author A. A. Naghipour Borj
S. J. Khajeddin
H. Bashari
P. Tahmasebi
M. Iravani
spellingShingle A. A. Naghipour Borj
S. J. Khajeddin
H. Bashari
P. Tahmasebi
M. Iravani
Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran
Iranian Journal of Applied Ecology
Smoke
Ash
Heat
Vegetation dynamics
Seed dormancy
Astragalus.
author_facet A. A. Naghipour Borj
S. J. Khajeddin
H. Bashari
P. Tahmasebi
M. Iravani
author_sort A. A. Naghipour Borj
title Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran
title_short Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran
title_full Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran
title_fullStr Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran
title_full_unstemmed Effects of fire Products on the Seed Germination of the Three Dominant Species from Astragalus Genus in Semi-Steppe Rangelands of Central Zagros, Iran
title_sort effects of fire products on the seed germination of the three dominant species from astragalus genus in semi-steppe rangelands of central zagros, iran
publisher Isfahan University of Technology
series Iranian Journal of Applied Ecology
issn 2476-3128
2476-3217
publishDate 2014-12-01
description Fire products (smoke, ash and heat) have widely been recognized as a germination cue for some species from both fire prone and fire-free ecosystems. It is an important factor for the understanding of vegetation dynamics and could have potential use for ecological management and rehabilitation of disturbed area. This study attempts to understand the effect of the main fire products (smoke, ash and heat) on germination of the three dominant species in the semi-arid rangelands of Feridan in Isfahan province including: Astragalus adscendens, Astragalus susianus and Astragalus verus. Six treatments including: 3 of heat (60°C, 80°C and 120°C), 1 of smoke, 1 of Ash, and 1 of control were tested in the current study. Results showed that the seeds were incubated in a germination chamber with a photoperiod of 12 h of light at 22.5°C and 12 h of darkness at 17.5°C. The three studied species had different responses against the used fire factors. Smoke and ash treatments did not modify the germination percentage of A. adscendens, but its germination was increased and significantly decreased in low heat (60°C) and severe heat (80 and 120°C) respectively. Germination percentage of A. verus was increased after the smoke treatment compared to the control treatment, but it did not increase the germination of A. susianus. Outcomes of further research would have important impacts also for conservation, environment management and ecosystem restoration in semi-arid rangelands.
topic Smoke
Ash
Heat
Vegetation dynamics
Seed dormancy
Astragalus.
url http://ijae.iut.ac.ir/browse.php?a_code=A-10-1-66&slc_lang=en&sid=1
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