Fig. 1

Seedling production using the hydroponic culture and parents seedling phenotyping. a The parents and doubled haploid (DH) population were cultivated in plastic tanks with eight liters of Hoagland’s nutrient solution. Throughout the experiments the roots were plunged into the nutrient solution. b Root systems and shoots of the parents Huadamai6 (from left 1–5) and Huaai11 (from left 6–10)