Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands

Abstract Studying the effects of fertilisation on the seed production of grassland species can help understand the vegetation changes and biodiversity losses due to soil eutrophication. The seed production of fifteen grasses and seventeen forbs from a temperate hay meadow was studied under three fer...

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Autores principales:	Michele Scotton, Valentina Rossetti
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9af89126422a4644b460678d9bd72e3b
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spelling	oai:doaj.org-article:9af89126422a4644b460678d9bd72e3b2021-12-02T17:37:12ZEffects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands10.1038/s41598-021-98756-52045-2322https://doaj.org/article/9af89126422a4644b460678d9bd72e3b2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98756-5https://doaj.org/toc/2045-2322Abstract Studying the effects of fertilisation on the seed production of grassland species can help understand the vegetation changes and biodiversity losses due to soil eutrophication. The seed production of fifteen grasses and seventeen forbs from a temperate hay meadow was studied under three fertilisation treatments: 0-0-0, 0-54-108 and 192-108-216 kg N, P2O5 and K2O respectively, per year. Fertile shoots collected at the seed maturation stage were analysed for all main traits of the gamic reproduction. On average, forbs produced more ovules and viable seeds per shoot (199 and 65, respectively) than grasses (112 and 35, respectively). Fertilisation increased the number of inflorescences per shoot in both grasses and forbs and had a limited but variable effect on germinability and viability in the two functional groups: viability increased in grasses but often decreased in forbs. This pattern resulted in 55% and 11% increases in viable seed production in grasses and forbs, respectively. At the higher level of fertilisation, shoot density was positively related to the number of viable seeds per shoot in grasses and to the seed size in forbs. These results highlight that the traits of the gamic reproduction can contribute to explain the relationship between soil nutrient richness and grassland species composition and richness.Michele ScottonValentina RossettiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michele Scotton Valentina Rossetti Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
description	Abstract Studying the effects of fertilisation on the seed production of grassland species can help understand the vegetation changes and biodiversity losses due to soil eutrophication. The seed production of fifteen grasses and seventeen forbs from a temperate hay meadow was studied under three fertilisation treatments: 0-0-0, 0-54-108 and 192-108-216 kg N, P2O5 and K2O respectively, per year. Fertile shoots collected at the seed maturation stage were analysed for all main traits of the gamic reproduction. On average, forbs produced more ovules and viable seeds per shoot (199 and 65, respectively) than grasses (112 and 35, respectively). Fertilisation increased the number of inflorescences per shoot in both grasses and forbs and had a limited but variable effect on germinability and viability in the two functional groups: viability increased in grasses but often decreased in forbs. This pattern resulted in 55% and 11% increases in viable seed production in grasses and forbs, respectively. At the higher level of fertilisation, shoot density was positively related to the number of viable seeds per shoot in grasses and to the seed size in forbs. These results highlight that the traits of the gamic reproduction can contribute to explain the relationship between soil nutrient richness and grassland species composition and richness.
format	article
author	Michele Scotton Valentina Rossetti
author_facet	Michele Scotton Valentina Rossetti
author_sort	Michele Scotton
title	Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
title_short	Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
title_full	Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
title_fullStr	Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
title_full_unstemmed	Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
title_sort	effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9af89126422a4644b460678d9bd72e3b
work_keys_str_mv	AT michelescotton effectsoffertilisationongrassandforbgamicreproductioninseminaturalgrasslands AT valentinarossetti effectsoffertilisationongrassandforbgamicreproductioninseminaturalgrasslands
_version_	1718379898564771840

Effects of fertilisation on grass and forb gamic reproduction in semi-natural grasslands

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