Genetic effect of dwarfing gene Rht13 compared with Rht-D1b on plant height and some agronomic traits in common wheat (Triticum aestivum L.)

GA-insensitive (GAI) dwarfing genes Rht-B1b and Rht-D1b have been widely used to reduce plant height, increase yield and improve harvest index, but they also express shorter coleoptiles and poor seedling vigor. GA-responsive dwarfing genes, such as Rht13 have potential for wheat improvement since they may not be associated with the latter effects. In this study, the effects of dwarfing genes Rht-D1b and Rht13 on plant height, coleoptile length,...