We constructed a near-isogenic line of rolled leaf gene Rl(t), which ex-pressed incompletely dominance for the character of rolled leaf(RL), with ge-netic background of Zhenshan 97B. Using RL Zhenshan 97B and the originalZhenshan 97B as the female parents, and Minghui 63 and Yanhui 559 as themale parents, crosses of RL Shanyou 63 (RS63) and Shanyou 63(S63), RL We constructed a near-isogenic line of rolled leaf gene Rl (t), which ex-pressed incompletely dominance for the character of rolled leaf (RL), with ge-netic background of Zhenshan 97B. Using RL Zhenshan 97B and the original Zenhens 97B as the female parents, and Minghui 63 and Yanhui 559 as themale parents, crosses of RL Shanyou 63 (RS63) and Shanyou 63 (S63), RL