Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.

To achieve global ambitions in large scale ecological restoration, there is a need for approaches that improve the efficiency of seed-based interventions, particularly in overcoming the bottleneck in the transition from germination to seedling establishment. In this study, we tested a novel seed-bas...

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Autores principales:	Simone Pedrini, Jason C Stevens, Kingsley W Dixon
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3d8fef6394194df4b2d613da19764748
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spelling	oai:doaj.org-article:3d8fef6394194df4b2d613da197647482021-12-02T20:10:57ZSeed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.1932-620310.1371/journal.pone.0242035https://doaj.org/article/3d8fef6394194df4b2d613da197647482021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0242035https://doaj.org/toc/1932-6203To achieve global ambitions in large scale ecological restoration, there is a need for approaches that improve the efficiency of seed-based interventions, particularly in overcoming the bottleneck in the transition from germination to seedling establishment. In this study, we tested a novel seed-based application of the plant stress modulator compound salicylic acid as a means to reduce seedling losses in the seed-to-seedling phase. Seed coating technology (encrusting) was developed as a precursor for optimising field sowing for three grass species commonly used in restoration programs, Austrostipa scabra, Microlaena stipoides, and Rytidosperma geniculatum. Salicylic acid (SA, 0.1mM) was delivered to seeds via imbibition and seed encrusting. The effects of SA on seed germination were examined under controlled water-limited conditions (drought resilience) in laboratory setting and on seed germination, seedling emergence, seedling growth and plant survival in field conditions. Salicylic acid did not impact germination under water stress in controlled laboratory conditions and did not affect seedling emergence in the field. However, seedling survival and growth were improved in plants grown from SA treated seeds (imbibed and encrusted) under field conditions. When SA delivery methods of imbibing and coating were compared, there was no significant difference in survival and growth, showing that seed coating has potential to deliver SA. Effect of intraspecific competition as a result of seedling density was also considered. Seedling survival over the dry summer season was more than double at low seedling density (40 plants/m2) compared to high seedling density (380 plants/m2). Overall, adjustment of seeding rate according to expected emergence combined with the use of salicylic acid via coating could improve seed use efficiency in seed-based restoration.Simone PedriniJason C StevensKingsley W DixonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0242035 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Simone Pedrini Jason C Stevens Kingsley W Dixon Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.
description	To achieve global ambitions in large scale ecological restoration, there is a need for approaches that improve the efficiency of seed-based interventions, particularly in overcoming the bottleneck in the transition from germination to seedling establishment. In this study, we tested a novel seed-based application of the plant stress modulator compound salicylic acid as a means to reduce seedling losses in the seed-to-seedling phase. Seed coating technology (encrusting) was developed as a precursor for optimising field sowing for three grass species commonly used in restoration programs, Austrostipa scabra, Microlaena stipoides, and Rytidosperma geniculatum. Salicylic acid (SA, 0.1mM) was delivered to seeds via imbibition and seed encrusting. The effects of SA on seed germination were examined under controlled water-limited conditions (drought resilience) in laboratory setting and on seed germination, seedling emergence, seedling growth and plant survival in field conditions. Salicylic acid did not impact germination under water stress in controlled laboratory conditions and did not affect seedling emergence in the field. However, seedling survival and growth were improved in plants grown from SA treated seeds (imbibed and encrusted) under field conditions. When SA delivery methods of imbibing and coating were compared, there was no significant difference in survival and growth, showing that seed coating has potential to deliver SA. Effect of intraspecific competition as a result of seedling density was also considered. Seedling survival over the dry summer season was more than double at low seedling density (40 plants/m2) compared to high seedling density (380 plants/m2). Overall, adjustment of seeding rate according to expected emergence combined with the use of salicylic acid via coating could improve seed use efficiency in seed-based restoration.
format	article
author	Simone Pedrini Jason C Stevens Kingsley W Dixon
author_facet	Simone Pedrini Jason C Stevens Kingsley W Dixon
author_sort	Simone Pedrini
title	Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.
title_short	Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.
title_full	Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.
title_fullStr	Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.
title_full_unstemmed	Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.
title_sort	seed encrusting with salicylic acid: a novel approach to improve establishment of grass species in ecological restoration.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/3d8fef6394194df4b2d613da19764748
work_keys_str_mv	AT simonepedrini seedencrustingwithsalicylicacidanovelapproachtoimproveestablishmentofgrassspeciesinecologicalrestoration AT jasoncstevens seedencrustingwithsalicylicacidanovelapproachtoimproveestablishmentofgrassspeciesinecologicalrestoration AT kingsleywdixon seedencrustingwithsalicylicacidanovelapproachtoimproveestablishmentofgrassspeciesinecologicalrestoration
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Seed encrusting with salicylic acid: A novel approach to improve establishment of grass species in ecological restoration.

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