Hybrids between vulgare (n = 21) and emmer (n = 14) wheats were backcrossed to vulgare, and segregates having the vulgare chromosome number were studied with respect to their emmer characters. Eleven of the 24 characters used in a vulgare-durum cross and 6 of the 23 characters used in a vulgare-dicoccum cross appeared in emmer condition in hybrids. Most of the other characters differed from the vulgare form in a number of segregates. From a comparison of the results of this investigation and a previous one dealing with 14-chromosome segregates, it is concluded that the vulgare form of many characters is due to genes in the primary chromosome sets A and B, the vulgare form of many others to genes in both the primary sets and the secondary set C.