优质水稻低温敏核不育系潭农S的选育与应用  

Breeding and Application of the TGMS Line Tannong S with Low Critical Temperature and Fine Grain Quality in Rice

作　　者：黄德宗[1] 任兴华[1] 陈荣华[1] 王翠兰[1] 黄启波[1] 彭校宗[1] 

机构地区：[1]湘潭市农业科学研究所,湖南湘潭411134

出　　处：《杂交水稻》2008年第3期12-14,共3页Hybrid Rice

基　　金：湖南省超级稻研究协作组课题(05961-02)

摘　　要：潭农S是用株1S与中鉴100杂交转育而成的水稻低温敏核不育系。该不育系早熟性好,分蘖力强,植株矮壮,穗大粒多,株叶型好,稻米品质优,配组优势强。不育起点温度22℃以下,不育期不育株率和花粉不育度均为100%,表现为典败或无花粉型败育,可育期自交结实率42%左右。开花习性好,柱头外露率高,制种产量高,2007年2月通过湖南省农作物品种审定。Tannong S, derived from the cross between Zhu 1S and Zhongjian 100, is a thermo-sensitive genetic male sterile （TGMS） line with low critical sterility-inducing temperature （CSIT） in rice. It shows the characteristics of early maturity, strong tillering ability, good plant type, large panicles with many spikelets, fine grain quality and high yield combining ability. Its CSIT is below 22℃, and its male sterility belongs to pollen-free type or typicalabortive-pollen type with 100% of male sterile plants and 100% of pollen sterility in its male sterile period, but its selfed seed setting rate can reach about 42% in its fertile period. It has also good flowering habits, high stigma exsertion rate and high seed production yield. It was certified by the Hunan Provincial Crop Variety Appraisal Committee in February, 2007.

关 键 词：两系杂交水稻 低温敏核不育系 潭农S 优质 选育 

分 类 号：S511.03[农业科学—作物学] S334