The present invention relates generally to the field of molecular biology and concerns a method for enhancing various plant yield-related traits by modulating expression in a plant of a nucleic acid encoding a RHL1 (Root Hairless 1). The present invention also concerns plants having modulated expression of a nucleic acid encoding a RHL1, which plants have enhanced various plant yield-related relative to corresponding wild type plants or other control plants. The invention also provides constructs useful in the methods of the invention.The present invention relates generally to the field of molecular biology and concerns a method for increasing various plant seed yield-related traits by increasing expression in a plant of a nucleic acid sequence encoding a transglutaminase (TGase) polypeptide. The present invention also concerns plants having increased expression of a nucleic acid sequence encoding a TGase polypeptide, which plants have increased seed yield-related traits relative to control plants. The invention additionally relates to nucleic acid sequences, nucleic acid constructs, vectors and plants containing said nucleic acid sequences.The present invention relates generally to the field of molecular biology and concerns a method for improving various plant growth characteristics by modulating expression in a plant of a nucleic acid encoding a TRY-like (Tryptichon) polypeptide. The present invention also concerns plants having modulated expression of a nucleic acid encoding a TRY-like polypeptide, which plants have improved growth characteristics relative to corresponding wild type plants or other control plants. The invention also provides constructs useful in the methods of the invention.The present invention relates generally to the field of molecular biology and concerns a method for increasing seed yield in plants. More specifically, the present invention concerns a method for increasing seed yield in plants by modulating expression in a plant of a nucleic