A chimera plant (A75-1165-117) was observed in 1975 in the F2 of a cross of Ames ms1 x 'Clark' homozygous translocation (Table 1). Reciprocal crosses were made with 'Clark 63', using branches from the chimera plant that contained a high percentage of yellow trifoliolates. Selfed seed of the chimera plant (A75-1165-117) and F1 seed from reciprocal crosses were planted in the field in 1976 (Table 2).