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Communication dans un congrès

The interspecific plant competition affects the production and the nutritive value of grassland species.

Abstract : Five grassland species (Dactylis glomerata, Festuca arundinacea, F. rubra, Poa pratensis and Trisetum flavescens) were cultivated in monoculture and in mixture with a highly competitive cultivar of Dactylis glomerata (Lupre) in 2002 at Theix, Massif Central, France. This setup aimed to evaluate the impact of species interactions on the productivity and on the nutritive value of these grassland species differing in their growth strategies. All 5 species exhibited larger aboveground organs when submitted to competition with the cultivar and this was associated to an increase in the proportion of structural tissue and to a decline in their nutritive value. Aboveground production in competition increased for tall species but decreased for the small ones. For small species, frequent defoliation regime balanced the negative effect of competition.
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Communication dans un congrès
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https://hal.inrae.fr/hal-02754049
Déposant : Migration Prodinra <>
Soumis le : mercredi 3 juin 2020 - 20:13:03
Dernière modification le : mardi 12 janvier 2021 - 14:40:11

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  • HAL Id : hal-02754049, version 1
  • PRODINRA : 17097

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Pascal Carrère, Laíse da Silveira Pontes, P. Fabre, Jesus Donato Andueza, Frédérique Louault, et al.. The interspecific plant competition affects the production and the nutritive value of grassland species.. 21. General Meeting of the European Grassland Federation : Sustainable grassland productivity, Apr 2006, Badajoz, Spain. ⟨hal-02754049⟩

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