Abstract
1. Materials used in this work are 27 varieties of wheat (T. vulgare) and 6 varieties of rye (S. cereale).
2. During three years from 1945 to 1947, 44, 445 wheat flowers were pollinated with rye pollen.
3. The set percentage showed a great difference from 66.3% to 2.1% according to wheat varieties, but it did not differ much in different years.
4. One and the same wheat variety pollinated with 6 varieties of rye showed similar percentages in seed set.
