Image from Google Jackets

Evidencias de alelopatia en el tropico: una nueva dimension en el manejo de malezas

By: Contributor(s): Material type: ArticleArticleLanguage: Spanish Description: 4(1):45-52Subject(s): LOC classification:
  • 6391
 In: Revista ComalfiSummary: The colonization and distribution of weeds in agro-ecosystems is in many cases due to a chemical process. Likewise, the adverse effect of weeds on crops is not only due to a competitive interaction but also to the presence of inhibitors (allelopathy). A review is made of interactions reported in literature, types and dynamics of inhibitors, and the way they act. The effect of incorporating fresh residue of Tagetes patula on germination and growth of certain weeds and crops was evaluated in screenhouse trials at CIAT. Then the effect of fresh residue of T. patula, Leptochloa filiformis, Eleusine indica, Amaranthus dubius, Manihot esculenta, Zea mays and Phaseolus vulgaris on germination of 9 weed species and 3 crops was studied. T. patula had a strong inhibiting effect on the germination of the highly competitive Ipomoea sp. (reduced by more than 70 percent). Of all the residues evaluated, the principles present in T. patula, A. dubius, M. esculenta and P. vulgaris seemed to be the most active, affecting significantly the germination of Sorghum vulgare, I. heredifolia and Portulata oleracea. Guidelines for future research are discussed. (CIAT)
Tags from this library: No tags from this library for this title.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Journal Article Journal Article CIAT Library Document collection CINFOS Document Collection CINFOS 6391 (Browse shelf(Opens below)) c.1 Short Loan 100063250
Total holds: 0

The colonization and distribution of weeds in agro-ecosystems is in many cases due to a chemical process. Likewise, the adverse effect of weeds on crops is not only due to a competitive interaction but also to the presence of inhibitors (allelopathy). A review is made of interactions reported in literature, types and dynamics of inhibitors, and the way they act. The effect of incorporating fresh residue of Tagetes patula on germination and growth of certain weeds and crops was evaluated in screenhouse trials at CIAT. Then the effect of fresh residue of T. patula, Leptochloa filiformis, Eleusine indica, Amaranthus dubius, Manihot esculenta, Zea mays and Phaseolus vulgaris on germination of 9 weed species and 3 crops was studied. T. patula had a strong inhibiting effect on the germination of the highly competitive Ipomoea sp. (reduced by more than 70 percent). Of all the residues evaluated, the principles present in T. patula, A. dubius, M. esculenta and P. vulgaris seemed to be the most active, affecting significantly the germination of Sorghum vulgare, I. heredifolia and Portulata oleracea. Guidelines for future research are discussed. (CIAT) eng

Powered by Koha