Dear Editor,Proper development of plant roots is critical for primary physiological functions,including water and nutrient absorption and uptake,physical support,and carbohydrate storage(Zhang et al.,2010).Crop root systems act as the key organ for sensing and response to abiotic and biotic stresses.Previous studies of crop root system development suggest that increased lateral root formation(LRF)could stimulate Dear Editor, Proper development of plant roots is critical for primary physiological functions, including water and nutrient absorption and uptake, physical support, and carbohydrate storage (Zhang et al., 2010). Crop root systems act as the key organ for sensing and response to abiotic and biotic stresses. Previous studies of crop root system development suggest that increased lateral root formation (LRF) could stimulate