Weed Survey on Wheat in the Northern State, Sudan

Mukhtar Abdel Aziz Mohamed

Abstract


A weed survey was conducted in seven locations in Dongola
area during the winter season of 2008/2009 to determine the most
prevalent weed species associated with wheat (Triticum aestivum L.). A
stratified random sampling procedure was adopted and each location was
divided into fields, of which 10 were randomly selected. Number of
individual weed species was determined in 10 quadrates, each 1 m2. The
field density, field frequency, field uniformity, relative field density,
relative field frequency, relative field uniformity and relative abundance
of the species were determined. The data revealed the presence of 29
species of annual and perennial weeds belonging to 15 families. The
highest number of species occurred in Elmasakeen and Sheikh Shareef,
while the lowest was recorded in Selaim basin. Sinapis arvensis, Cynodon
dactylon, Malva palviflora, Convolvulus arvensis, Chenopodium album
and Sorghum arundinaceum occurred at high relative abundance. Species
with moderate relative abundance were Cyperus rotundus, Trigonella
hamosa, Eruca sativa, Chenopodium murale and Sinapis alba. The other
species occurred in few locations and exhibited low to very low relative
abundance.

Keywords


Wheat; weeds; weed survey

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