Effect of dusts fungicides on common smut and characteristics yield for many genotypes of corn (Zea mays L.)

Abstract

A field experiment was carried out at the research farm, college of Agric. Al-Anbar University, during the autumn season of 2003. The Objective was to determin the effect of fungicides dusts on common smut and sume yield characteristics and yield for five genotypes of corn, Rabia alawal, Almassara, Alssaffa, Shahad and Buhooth 106. It seeds were dusts by fungicides; Carboxin, Dithane M45 and Dividend.البحث مستل من أطروحة ماجستير للباحث الاولA split-plot arrangement in R.C.B.D with three replications was used, genotypes were assigned in the main plots, while fungicides in subplots. Fungicides carboxin significant effect had given a lowest infection percentage. While Diathine M45 and Dividend significant difference with Carboxin in row No. / ear. But dividend significant effect had given highest 300 grain weight (gm). At genotypes, Shahad and Assaffa significant difference with infection percentage was lowest then 20% for for both. Alssaffa significant deference with ather genotypes in ear No. / plant, also Buhooth 106 in row No. / ear but wasn’t Significant difference with genotypes Almassara and Rabia alawal, and genotype Almassara yield / plant but wasn’t with Rabia in alawal and Shahed. Interaction between fungicides Carboxin and genotype Shahad was significant effect in infection percentage.