The present invention relates generally to the field of molecular biology and concerns a method for enhancing various economically important yield-related traits in plants. The present invention concerns a method for increasing yield in plants by introducing and expressing in said plant a nucleic acid molecule encoding a CDKB-RKA polypeptide having reduced, and preferably lacking catalytic kinase activity. This alternative invention also concerns plants showing increased yield relative to control plants, and comprising a CDKB-RKA polypeptide. This alternative invention also provides constructs comprising a B-type CDK polypeptide having reduced, and preferably lacking catalytic kinase activity, that are useful in performing the methods of the invention.
