Soybean [Glycine max (L.) Merr.] protein is a high quality source for food and feed. But, antinutritional factors in the raw mature soybean are exist. Kunitz trypsin inhibitor (KTI) protein of mature soybean seed is a main antinutritional factor in soybean seed. The Le gene controls a lectin protein and Ti gene controls the KTI protein in soybean. Ti locus has been located on molecular linkage group A2 (chromosome 8) of soybean. The y9 type found in T135 is yellow at emergence, becoming greenish-yellow by maturity. Although this type is considered chlorophyll-deficient, it is fairly vigorous in growth. The objective of this research was to exam an agronomic traits of y9ti genotype selected from the breeding line. The seeds of y9ti genotype were planted in the field. Traits of maturity date, seed weight, and seed coat color were checked.

• Sang-Woo Choi(Division of Applied Life Science, Graduate School, Gyeongsang National University)
• Sung-Jin Han(Division of Applied Life Science, Graduate School, Gyeongsang National University)
• Jong-Il Chung(Division of Applied Life Science, Graduate School, Gyeongsang National University) Corresponding Author