Study on Relationship Between Different Growing Phases and Quality Breeding in Soybean

The relationships of oil,protein to growing phases were studied in this paper with 68 test materials.The result shows:it's the best for soybean breeding of high oil content to choose the materials with characteristics of the short dates from sowing to emergence late_flowering early_maturing phases;it's the best for soybean breeding of high protein content to choose the materials with characteristics of the short dates from the emergence to flowering and the long flowering and growing periods.