Rice ecotype >Land rice and water rice(陆稻与水稻) >Varieties with different resistance to salt and insects >Oryza sativa indica-japonica(籼稻-粳 稻)Rice ecotype Rice ecotype ¾Land rice and water rice （陆稻与水稻） ¾Varieties with different resistance to salt and insects ¾Oryza sativa indica-japonica （籼稻 - 粳 稻）