Weed Survey on Faba bean (Viciafaba L.) in Khartoum State, Sudan

Abstract

A weed survey was carried out in sixareas in Khartoumstate namely: ElfakiHashim, ElgazeraIslang, Wawisti, Elgerafa, Tuti and Soba during the winter season of 2015/2016 to determine the most common and prevalent weed species associated with faba bean (Viciafaba L.) cultivation. A stratified random sampling procedure was adopted, whereby each area was divided into fields of which 3 were randomly selected. Number of individual weed species was determined in 10 quadrates each 1 m2. The field density, frequency, uniformity, relative density, relative frequency, relative uniformity and relative abundance of the species were determined. Data revealed the presence of 24 species of annual and perennial weeds belonging to 14 families. The highest number of species occurred in ElgeziraIslang whilst the lowest was recorded in Wawisi. CyperusrotundusandCuscutaeuropaeawere weeds that occurred at high relative abundance.Species with moderate relative abundance included Gynandropsisgynandra and Echinochloacolona, The other species occurred in few areas and exhibited low to verylow relative abundance.