To determine baking quality of Iranian wheats, several physico-chemical procedures are being used. One of the procedure which is used at the early phases of breeding program is Zeleny test which requires small amount (to g)
of samples. Another method used for this perpose is SDS - Sedimentation test which is more accurate then Zeleny and requires much less sample (1g). This
test was applied to 60 Iranian and exotic wheat cultivars. The results showed that cultivar with high sedimentation volume are those with 5 + 10 alleles. This test as a reliable one to determine backing quality of wheat in early generations of a breeding program, specially when the amount of sample is low.
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