In order to identify plant type characteristics of high-yield population of indica hybrid rice using mechanized planting methods,a split plot field experiment was conducted using Fyou 498 as material.The plant type characteristics and their relationships with yield components in treatments of mechanized direct-seeding,mechanized transplanting and artificial transplanting with different seedlings per hill and different sowing dates were studied.The main results were as follows:(1)The traits of plant type dif...