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noms dans le fil d’Ariane
Image de Pâturin annuel
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Pâturin Annuel

Poa annua L.

optimal rainfall
tout afficher active growth period after harvest regrowth rate allelopathic effect anaerobic soil tolerance are dispersed by are eaten by are host of are parasitized by bloom period browse animal palatability calcareous soil tolerance carbon-to-nitrogen ratio cellularity commercial availability conservation status drought tolerance fire resistance fire tolerance flower color foliage porosity summer foliage porosity winter foliage texture frost free days fruit or seed color fruit/seed abundance fruit/seed persistence geographic distribution germination requirements grain type grass growth type graze animal palatability growth rate habitat have pathogen have vector hedge tolerance horticulture human/livestock toxicity introduced range includes leaf area leaf color leaf complexity leaf mass per area leaf morphology leaf nitrogen per dry mass leaf sheddability life cycle habit livestock bloat potential low temperature tolerance moisture use optimal growth pH optimal growth temperature optimal rainfall photosynthetic pathway plant growth form plant height plant lifeform plant propagation method population trend post-fire seedling emergence precipitation tolerance primary growth form primary macronutrient requirements produces protein potential resprout ability after clipping resprout ability after fire rooting depth salt tolerance seed dry mass seed mass seed period begin seed period end seed spread rate seedling survival seeds per pound sexual system shade tolerance shape shedability soil depth soil ph soil requirements stem specific density trophic guild type specimen repository used for vegetative spread rate woodiness

    optimal rainfall

  • ECOCROP
    1200 mm/an
    (max)
  • ECOCROP
    600 mm/an
    (minimum)
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