Capacidad de propagación vegetativa de Alternanthera philoxeroides en suelos agrícolas

Authors

  • Sara I. Alonso Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, C. C. 276, 7620 Balcarce, Argentina
  • Katsuo A. Okada Instituto Internacional de Recursos Fitogenéticos (IPGRI), Oficina Regional para las Américas, c/o CIAT, A.A. 6713, Cali, Colombia

Abstract

Alternanthera philoxeroides is a South American aquatic weed which can also invade well drained agricultural soils by rhyzorne and root propagation. In order to understand how this reed propagates on well drained agricultural soils, a number of experiments were carried out using cut routs and fragments of both rhizormes and roots. The polarity and apical dominance of intact plants as maintained by fagments of both roots and rhizomes, specially in root fragments. Soil depth at which fragments were buried determined the regenerative capacity of cut roots and the velocity of emergence of .shoots. Atfield conditionsshoot emergence was poorin rootfragments buried below 30 cm. Propagation capacity of root fragments depended on their length and diameter; the longer and thicker the fragment, the higher was the percentage of .shoot emergence, the number of’shoots per fragment and the speed of emergence. Similar relationship was observed in rhizome fragments.

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Published

1996-06-01

How to Cite

Alonso, S. I., & Okada, K. A. (1996). Capacidad de propagación vegetativa de Alternanthera philoxeroides en suelos agrícolas. Ecología Austral, 6(1), 009–016. Retrieved from https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1662

Issue

Vol. 6 No. 1 (1996)

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Articles

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