Dissemination of Wheat Covered Smut in Iraq
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2010, Volume 8, Issue 4, Pages 469-473
AbstractResults of wheat bunt survey explored presence of the disease in the northern and middle zones of Iraq. The disease was recorded for the first time in AL-Kadissia and Thekkar governorate. The highest percentage of wheat grains contamination with bunted balls in northern zone was 0.66% w/w followed by the middle and southern zone with 0.33% and 0.07% respectively. There was 50-100% of wheat grains contamination with fungal teliospore. The highest inoculum spores load in healthy wheat grains was 2.7 × 106 spore /gm grains in the sample of Baladroze area, Diala governorate, while the lowest load was 0.02× 106 spore/gm grains from AL Kut, Wasit governorate. Tilletia tritici was most frequent on wheat sample in northern zone compared with middle and southern zones. While the fungus T. laevis was significantly frequent in the middle and southern zone followed by T. intermedia in the southern zone and Tilletia sp. In the middle zone of Iraq.
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