籼型优质光温敏核不育系H175S的选育

Breeding of Indica PTGMS Line H175S with Good Grain Quality

H175S是以1892S为母本,广占63S为父本杂交,经过7 a 13代系谱选择育成的育性稳定、败育彻底、育性转换临界温度较低(23.5℃)、株叶形态好、穗大粒多、抗性较好、米质优、配合力高、异交结实率高的籼型光温敏核不育系,2011年通过安徽省品种审定委员会技术鉴定。

Derived from the cross of 1892S and Guangzhan 63S,H175S is a new PTGMS line in indica rice.It shows the characteristics of complete and stable male sterility with 100% of sterile plants and pollen sterility,low critical temperature（23.5℃）,good plant type,big panicles with many spikelets,good blast resistance,good grain quality,high combining ability and favorable outcrossing habits.It was approved for commercialization by Anhui Provincial Crop Variety Release Committee in 2011.