TaGRF3-2A Improves Some Agronomically Valuable Traits in Semi-Dwarf Spring Triticale.

The breeding improvement of triticale is tightly associated with the introgression of dwarfing genes, in particular, gibberellin (GA)-insensitive from rye. Despite the increase in harvest index and resistance to lodging, this gene adversely affects grain weight and size. Growth regulation factor () genes are plant-specific transcription factors that play an important role in plant growth, including GA-induced stem elongation.