Abstract
A series of 4 .times. 4 diallel crosses in the red rapberry (Rubus idaeus L.) determined that inheritance was predominantly additive for fruit yield and weight, fall-fruiting habit, day of flowering and total soluble solid content; it was mainly nonadditive for numbers of cane branches and laterals. Inbreeding depression was found for the yield of seedlings from sib-crosses within individual diallels. Reciprocal differences were noted for some characters.