IFEVA 02662
INSTITUTO DE INVESTIGACIONES FISIOLOGICAS Y ECOLOGICAS VINCULADAS A LA AGRICULTURA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Resource exploitation and chemical interference between soybean (Glycine max (L.) Merr.) crop and wormwood (Artemisia annua ( L.)
Autor/es:
MORVILLO C.M.; DE LA FUENTE, E.B.; GIL, A.; MARTINEZ-GHERSA, M.A.
Lugar:
Vancouver, Canada
Reunión:
Congreso; Meting of the International Weed Science Society; 2008
Institución organizadora:
IWSS
Resumen:
Wormwood interference on soybean crop growth and yield may result from exploitation of resources and chemical interference. Allelochemicals released by the weed (e.g. artemisinin) may directly affect the crop or indirectly on the legume nitrogen fixing simbiont (Bradyrhizobium japonicum). This study is aimed at quantifying the relative impact of weed chemical and resource use interference under field conditions on soybean nodulation and yield. Soybean yield decreased in response to the increase of relative biomass of wormwood in treatments where chemical interference was reduced, In treatments with allelochemicals the yield remained stable and nodules were larger than without alelopathy.
