Amphicarpy as Reproduction Mechanism of the Tropical Pasture Legume Centrosema rotundifolium as Affected by Management on Sandy Savanna Soils

Description: Centrosema rotundifolium is an amphicarpic wild legume whose potential as pasture species on acid soils of low fertility in the semi-arid to dry-subhumid tropics has been recognised only recently. Amphicarpy, i.e. the ability of the same plant to produce both above- and below-ground seeds, contributes to the regeneration potential of plants from the soil seed bank and thus to the persistence of a plant population in a pasture. Little is so far known concerning the mechanism of amphicarpy in a perennial plant and the effect of environmental factors on the balance between below-ground and above-ground reproduction. In the project, the influence of various environmental stress factors on the resource allocation is investigated on a sandy soil of low fertility in East Venezuela, a site that is representative for neotropical savanna regions. The factors under study are intraspecific competition (plant density), interspecific competition (associated grasses), intensity of defoliation (forage utilisation), fire and fertilization.

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Tags: Süßgräser ? Venezuela ? Biologische Wirkung ? Futterpflanze ? Kronenverlichtung ? Umweltauswirkung ? Brand ? Futtermittel ? Leguminosen ? Pflanzenart ? Pflanzenbestand ? Saatgut ? Sandboden ? Umweltbelastung ? Wildpflanze ? Biologische Konkurrenz ? Unterboden ? Südamerika ? Anthropogener Einfluss ? Beweidung ? Bodenbewirtschaftung ? Fortpflanzung ? Persistenz ? Populationsdichte ? Studie ? Tropengebiet ? Weideland ? Fruchtbarkeit ? Population ? Ressource ? Ressourcennutzung ? Ökologischer Faktor ? Anbaumassnahmen ? Centrosema-rotundifolium ? Feuerökologie ? Flamme ? Flammen ? Grasland ? Amphikarpie ? Regeneration ? Rhizospaere ? Samen ? Tropische-Weideleguminose ? Vegetative Fortpflanzung ? Weidemanagement ? Belastungsfaktor ?

Region: Baden-Württemberg

Bounding boxes: 7.511871829803615° .. 10.495748779340031° x 47.53236022054888° .. 49.79147764979833°

License: Creative Commons Namensnennung-keine Bearbeitung-Nichtkommerziell 4.0

Language: Englisch/English

Organisations

• Umweltbundesamt (Bereitstellung)
• Universität Hohenheim (Projektverantwortung)

Last harvest: 04.05.2026 00:19

Time ranges: 1998-03-01 - 2000-02-28

Status

Aktiv

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