Influence of Polymer Seed Coatings, Soil Raking, and Time of Sowing on Seedling Performance in Post-Mining Restoration

Shane Turner, B. Pearce, Deanna Rokich, R.R. Dunn, David Merritt, J.D. Majer, Kingsley Dixon

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

This study represents part of a broader investigation into novel seed broadcasting methodologies as a means to optimize rehabilitation techniques following sand mining. Specifically, the study investigated the use of polymer seed coatings, time of sowing application, and in situ raking of the topsoil to optimize seedling recruitment to site. For polymer seed coatings, an ex situ trial was undertaken to evaluate seed coating effects on seedling emergence. Results demonstrated that seed coatings did not significantly inhibit maximum emergence percentage of 10 Banksia woodland species (out of 11 evaluated), but coated seeds from four species were on average 2-6 days slower to emerge than noncoated seeds. Seed coatings were found to have a greater effect in situ, with more coated seeds emerging than noncoated seeds. Topsoil raking (following seed sowing) and time of sowing were found to have the greatest impact on seedling emergence, with higher emergence following topsoil raking (5- to 90-fold increase) and sowing in May (late autumn) (1.4- to 112-fold increase) rather than in July (mid-winter). The implications for mining rehabilitation are discussed, and areas for further research are considered.
Original languageEnglish
Pages (from-to)267-277
JournalRestoration Ecology
Volume14
Issue number2
DOIs
Publication statusPublished - 2006

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seed dressings
sowing date
sowing
coating
polymers
polymer
seedling
seed
seedlings
topsoil
seeds
soil
seedling emergence
Banksia
woodlands
restoration
sand
autumn
fold
winter

Cite this

Turner, Shane ; Pearce, B. ; Rokich, Deanna ; Dunn, R.R. ; Merritt, David ; Majer, J.D. ; Dixon, Kingsley. / Influence of Polymer Seed Coatings, Soil Raking, and Time of Sowing on Seedling Performance in Post-Mining Restoration. In: Restoration Ecology. 2006 ; Vol. 14, No. 2. pp. 267-277.
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abstract = "This study represents part of a broader investigation into novel seed broadcasting methodologies as a means to optimize rehabilitation techniques following sand mining. Specifically, the study investigated the use of polymer seed coatings, time of sowing application, and in situ raking of the topsoil to optimize seedling recruitment to site. For polymer seed coatings, an ex situ trial was undertaken to evaluate seed coating effects on seedling emergence. Results demonstrated that seed coatings did not significantly inhibit maximum emergence percentage of 10 Banksia woodland species (out of 11 evaluated), but coated seeds from four species were on average 2-6 days slower to emerge than noncoated seeds. Seed coatings were found to have a greater effect in situ, with more coated seeds emerging than noncoated seeds. Topsoil raking (following seed sowing) and time of sowing were found to have the greatest impact on seedling emergence, with higher emergence following topsoil raking (5- to 90-fold increase) and sowing in May (late autumn) (1.4- to 112-fold increase) rather than in July (mid-winter). The implications for mining rehabilitation are discussed, and areas for further research are considered.",
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Influence of Polymer Seed Coatings, Soil Raking, and Time of Sowing on Seedling Performance in Post-Mining Restoration. / Turner, Shane; Pearce, B.; Rokich, Deanna; Dunn, R.R.; Merritt, David; Majer, J.D.; Dixon, Kingsley.

In: Restoration Ecology, Vol. 14, No. 2, 2006, p. 267-277.

Research output: Contribution to journalArticle

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AU - Turner, Shane

AU - Pearce, B.

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AU - Dunn, R.R.

AU - Merritt, David

AU - Majer, J.D.

AU - Dixon, Kingsley

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AB - This study represents part of a broader investigation into novel seed broadcasting methodologies as a means to optimize rehabilitation techniques following sand mining. Specifically, the study investigated the use of polymer seed coatings, time of sowing application, and in situ raking of the topsoil to optimize seedling recruitment to site. For polymer seed coatings, an ex situ trial was undertaken to evaluate seed coating effects on seedling emergence. Results demonstrated that seed coatings did not significantly inhibit maximum emergence percentage of 10 Banksia woodland species (out of 11 evaluated), but coated seeds from four species were on average 2-6 days slower to emerge than noncoated seeds. Seed coatings were found to have a greater effect in situ, with more coated seeds emerging than noncoated seeds. Topsoil raking (following seed sowing) and time of sowing were found to have the greatest impact on seedling emergence, with higher emergence following topsoil raking (5- to 90-fold increase) and sowing in May (late autumn) (1.4- to 112-fold increase) rather than in July (mid-winter). The implications for mining rehabilitation are discussed, and areas for further research are considered.

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