NEW GENES FOR WRINKLED OR DIMPLED SEED IN PEAS

The inheritance of wrinkled seed of peas (Pisum sativum L.) was studied in the F1, F2, and F3 generations of crosses involving the wrinkled seeded varieties Br. 2-10-6, P.I. 116844C, P.I. 195024C, P.I. 210601 and P.I. 210665, and the round seeded variety P.I. 206823. It was concluded that Br. 2-10-6, P.I. 116844C, P.I. 195024C, and P.I. 210601 have the classical r gene for wrinkled seed and that wrinkling in P.I. 210665 is the result of two partly recessive genes. The latter both differ from the r gene. Complex ratios occurred in the F2 and F3 generations of crosses involving P.I. 210665 and other wrinkled parents.