Dormancy and germination: making every seed count in restoration

From 50 to 90% of wild plant species worldwide produce seeds that are dormant upon maturity, with specific dormancy traits driven by species' occurrence geography, growth form, and genetic factors. While dormancy is a beneficial adaptation for intact natural systems, it can limit plant recruitm...

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Main Authors: Kildisheva, O.A., Dixon, Kingsley, Silveira, F.A.O., Chapman, T., Di Sacco, A., Mondoni, A., Turner, Shane, Cross, Adam
Format: Journal Article
Language:English
Published: WILEY 2020
Subjects:
Online Access:http://purl.org/au-research/grants/arc/IC150100041
http://hdl.handle.net/20.500.11937/84614
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author Kildisheva, O.A.
Dixon, Kingsley
Silveira, F.A.O.
Chapman, T.
Di Sacco, A.
Mondoni, A.
Turner, Shane
Cross, Adam
author_facet Kildisheva, O.A.
Dixon, Kingsley
Silveira, F.A.O.
Chapman, T.
Di Sacco, A.
Mondoni, A.
Turner, Shane
Cross, Adam
author_sort Kildisheva, O.A.
building Curtin Institutional Repository
collection Online Access
description From 50 to 90% of wild plant species worldwide produce seeds that are dormant upon maturity, with specific dormancy traits driven by species' occurrence geography, growth form, and genetic factors. While dormancy is a beneficial adaptation for intact natural systems, it can limit plant recruitment in restoration scenarios because seeds may take several seasons to lose dormancy and consequently show low or erratic germination. During this time, seed predation, weed competition, soil erosion, and seed viability loss can lead to plant re-establishment failure. Understanding and considering seed dormancy and germination traits in restoration planning are thus critical to ensuring effective seed management and seed use efficiency. There are five known dormancy classes (physiological, physical, combinational, morphological, and morphophysiological), each requiring specific cues to alleviate dormancy and enable germination. The dormancy status of a seed can be determined through a series of simple steps that account for initial seed quality and assess germination across a range of environmental conditions. In this article, we outline the steps of the dormancy classification process and the various corresponding methodologies for ex situ dormancy alleviation. We also highlight the importance of record-keeping and reporting of seed accession information (e.g. geographic coordinates of the seed collection location, cleaning and quality information, storage conditions, and dormancy testing data) to ensure that these factors are adequately considered in restoration planning.
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spelling curtin-20.500.11937-846142022-01-06T07:36:46Z Dormancy and germination: making every seed count in restoration Kildisheva, O.A. Dixon, Kingsley Silveira, F.A.O. Chapman, T. Di Sacco, A. Mondoni, A. Turner, Shane Cross, Adam Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences & Ecology dormancy classification dormancy cycling seed fill seed quality seed testing PHYSICAL DORMANCY ACHENE DIMORPHISM PLANT CLASSIFICATION IDENTIFICATION ESTABLISHMENT REQUIREMENTS ALLEVIATION RECRUITMENT POPULATIONS From 50 to 90% of wild plant species worldwide produce seeds that are dormant upon maturity, with specific dormancy traits driven by species' occurrence geography, growth form, and genetic factors. While dormancy is a beneficial adaptation for intact natural systems, it can limit plant recruitment in restoration scenarios because seeds may take several seasons to lose dormancy and consequently show low or erratic germination. During this time, seed predation, weed competition, soil erosion, and seed viability loss can lead to plant re-establishment failure. Understanding and considering seed dormancy and germination traits in restoration planning are thus critical to ensuring effective seed management and seed use efficiency. There are five known dormancy classes (physiological, physical, combinational, morphological, and morphophysiological), each requiring specific cues to alleviate dormancy and enable germination. The dormancy status of a seed can be determined through a series of simple steps that account for initial seed quality and assess germination across a range of environmental conditions. In this article, we outline the steps of the dormancy classification process and the various corresponding methodologies for ex situ dormancy alleviation. We also highlight the importance of record-keeping and reporting of seed accession information (e.g. geographic coordinates of the seed collection location, cleaning and quality information, storage conditions, and dormancy testing data) to ensure that these factors are adequately considered in restoration planning. 2020 Journal Article http://hdl.handle.net/20.500.11937/84614 10.1111/rec.13140 English http://purl.org/au-research/grants/arc/IC150100041 http://creativecommons.org/licenses/by/4.0/ WILEY fulltext
spellingShingle Science & Technology
Life Sciences & Biomedicine
Ecology
Environmental Sciences & Ecology
dormancy classification
dormancy cycling
seed fill
seed quality
seed testing
PHYSICAL DORMANCY
ACHENE DIMORPHISM
PLANT
CLASSIFICATION
IDENTIFICATION
ESTABLISHMENT
REQUIREMENTS
ALLEVIATION
RECRUITMENT
POPULATIONS
Kildisheva, O.A.
Dixon, Kingsley
Silveira, F.A.O.
Chapman, T.
Di Sacco, A.
Mondoni, A.
Turner, Shane
Cross, Adam
Dormancy and germination: making every seed count in restoration
title Dormancy and germination: making every seed count in restoration
title_full Dormancy and germination: making every seed count in restoration
title_fullStr Dormancy and germination: making every seed count in restoration
title_full_unstemmed Dormancy and germination: making every seed count in restoration
title_short Dormancy and germination: making every seed count in restoration
title_sort dormancy and germination: making every seed count in restoration
topic Science & Technology
Life Sciences & Biomedicine
Ecology
Environmental Sciences & Ecology
dormancy classification
dormancy cycling
seed fill
seed quality
seed testing
PHYSICAL DORMANCY
ACHENE DIMORPHISM
PLANT
CLASSIFICATION
IDENTIFICATION
ESTABLISHMENT
REQUIREMENTS
ALLEVIATION
RECRUITMENT
POPULATIONS
url http://purl.org/au-research/grants/arc/IC150100041
http://hdl.handle.net/20.500.11937/84614