ارزيابي كيفيت گندم هاي نان ايران بر اساس زيرواحدهاي گلوتنين سنگين

Bread wheat quality evaluation based on the high molecular weight glutenin subunits subunits

High molecular weight glutenin subunits variation was studied at Glu-l loci in 86 breeding lines and cultivars of bread wheat of lran, using SDS-PAGE method. A total of 14 alleles and 31 allelic composition were detected. An already reported rare subunit pair " 2***+12`" at Glu-Dl locus was found in Sorkhtokhm, and Boulani which are landraces of Sistan and Bluchestan provience of Iran and cv. Kavir which is a Sorkhtokhm derivative. The total average of Glu-l quality scores of these lines and cultivars was 7.6 of 10 and showed that tbe HMW-GS compositions had generally good quality. Cultivars Inia, Maroon, Sisson, Zagros, Pastour, Tajan and N-75-ll, N-75-15, C-79-16 and C-79-18 lines showed quality scores equal to ten. However, Alamoot, Shahriar, Hamoon cultivers and C-73-18, C-73-20, C-75-5, and C-78-18 lines showed quality scores between four to five. The quality of former and later lines/ cultivars were considered the highest and lowest in this study, respectively. The results in this study provides a genetic estimation of quality of bread wheat lines/ cultivars in Iran in comparison to those from other countries.