The present invention relates generally to the field of molecular biology and concerns a method for increasing plant yield relative to control plants. More specifically, the present invention concerns a method for increasing plant yield comprising increasing expression in a plant of a nucleic acid sequence encoding a MYB (DNA-binding) domain transcription factor (MYB-TF) polypeptide. In a particular embodiment, the present invention concerns a method for increasing plant yield comprising preferentially increasing expression of a nucleic acid sequence encoding a MYB-TF polypeptide, in the endosperm of a plant seed. The present invention also concerns plants having increased expression of a nucleic acid sequence encoding a MYB-TF polypeptide, as well as plants having preferentially increased expression of a nucleic acid sequence encoding a MYB-TF polypeptide in the endosperm of seeds, which plants have increased yield relative to control plants. The invention also provides constructs useful in the methods of the invention.