Analysis of agronomic and quality characters of new wheat varieties and lines in Sichuan

The main agronomic and quality characters were investigated in 49 Sichuan new wheat varieties and lines.Most of the wheat genotypes have the desirable agronomic characters.The protein contents of these genotypes were co mmonly medium or low,averagely 12.97 %.The average sedimentation values were 22.23 mL.The content of wet gluten were 33.68 %.The farinograph parameters were not fine,for example,on average the developing time was 2.01 min,Stability time was 3.22 min and the farinograph quality number was 35.66.According to the main quality indexes,W7 accorded with the standard of high quality,strong gluten wheat,other 4 genotypes reached the standard of special,medium gluten wheat and 2 materials accorded with the standard of special,weak gluten wheat.The correlation analysis results showed that the protein content had significant positive correlation with sedimentation value,gluten content and water absorption,respectively. Sedimentation value had significant positive correlations with other quality characters.There were significant positive correlations between gluten index and farinograph quality parameters.The 1000 grains weight was negatively significant correlated to the gluten index,stability time and the farinograph quality number.No significant correlations were detected between most of the other agronomic characters and quality ones,which indicated that the breeding aims of high yield and good quality were not conflicted.