Abstract:

Abstract:In order to searching for the best detected period of HMW-GS before harvest of wheat,achieving the one time selected of HMW-GS and objective trait .The HMW-GS components of 21 wheat varieties were fractionated by SDS-PAGE each 5 days from anthesis to search for the best detected period ,and 21future generation of hybrid combination were continual selected. The resulted showed :○1late milky stage is the best stage which firstly has clear HMW-GS and contemporary detection and selection.○2The some excellent HMW-GS frequency was improved according to continual selected of HMW-GS, the selected effect is good.○3The new line Baomai 35 with high yield and quality were selected, proved that the selection which combines contemporary detected HMW-GS with breeding objective of comprehensive was benefit the new line selection of high yield and quality and resistantance.