Quality Characteristics Of Kernel From Triticum Aestivum And Agropyron Cristatum Heterologous Derived Lines

The starch properties (starch content in wheat granule, amylase content, viscosity properties of starch, flour swelling volume) and protein properties (protein content, protein compositions, wet gluten contents, SDS sedimentation values, swelling indexes of glutenin(SIG), HMW-GS compositions)were studied. The sample were taken by NWSUAF Food scince & engineering college Zhang zhengmao, who selection breeding the triticum aestivum L_ agropyron cristatum L. gaertn heterologous derived lines (TAHDL), and using six wheat varieties certified by the national authority of China and the provincial authority of Shaanxi concerned and Cultivated over a large area as its control.The result shown:1.The averaged starch content, amylase content of THDAL were lower than the CK; averaged past temperature, peak viscosity higher than CK; average of FSV higher than CK. The starch quality indictor of TAHDL had a significant difference between wheat variety.2 The averaged protein content of THDAL were higher than CK; albumin content higher than CK; globulin content lower than CK; averaged glutenin content higher than CK in two years; 9-1-1-3,1-1-7,2-60-1 have higher glutenin conent.3 The averaged wet gluten contents, SDS sedimentation values and SIG were higher than CK.4 HMW-GS Analysis by electrophoresis showed that there 3 Subunits combination : 1/7+8/2+12,Null/7/5+10,1/7+9/2+12. 81.25% of the TAHDL had the good Subunits combination 7+8, score of subunits is 8.5 The result of clusteing analysis on sample varieties quality shown that 1-1-7, 2-60-1, 9-1-1-3, 9-1-1-5 were division in same group, indicate those sample have similar quality characteristic, kernel quality better than other THDAL materials and CK.