Abstract: In order to clarify the relationship between yield and the main traits of wheat （Triticum aestivum L.）, 44 wheat varieties in Hubei Provincial regional test from 2021 to 2022 were used as materials, and the correlation between yield and other agronomic traits, quality traits and disease resistance of different wheat varieties was explored by grey correlation analysis. The results showed that the correlation degree （r） between the yield and the main traits was in the descending order of growth period （r = 0.914 7）, the dry unit weight （r =0.899 0）, plant height （r=0.873 0）, thousands of grains （r=0.852 0）, the number of ears （r= 0.827 2）, water absorption （r=0.821 8）, crown protein content （r=0.814 8）, wet gluten content （r= 0.768 3）, the leaf blight rate （r= 0.522 2） and stable time （r= 0.425 6）. It showed that the factor that had the greatest impact on yield was growth period, followed by the dry unit weight and plant height; the factors with less impact on yeid were stable time and the leaf blight rate. In the breeding of new wheat varieties and the practice of high-yield cultivation, the main direction was the varieties with high dry unit weight and moderate growth period, and the selection of plant height was strengthened.

Key words: wheat（Triticum aestivum L.）, variety area test, yield, agronomy trait, quality trait, grey correlation