水稻两用核不育系C815S的选育与利用

用安献零S作母本,培矮64S作父本杂交,通过自然气候条件和人工低温对育性的增压选择,经过5年10代的定向培育,于2002年育成具有不育起点温度低、理想株型、优质、广亲和、高异率、配合力强的两用核不育系C815S,2004年通过湖南省农作物品种审定委员会审定.已选配出C两优396、C两优87、C两优343、C两优755、C两优1102等一批超级杂交稻新组合通过湖南省审定或在国家和省区试中表现突出.该不育系的育成,是优质超级稻选育的重大突破.

Breeding and utilization of dual-purpose genic male sterile rice C815s

C815S is a new combination by crossing AnxianglingS as famale parent with Peiai64S as male parent,it was selected at the condition of the pressure of the artificial lower temperatureand the natural lower temperature in 2002 by directional cultivation 10 genearation of 5 years.The sterile has the characteristics of lower temperature,ideal plant type,high quality,a wide compatabifity,high outcross setting rate and high combining ability.It was examined and approved by Hunan provincial variety examination and approval committee in 2004.Furthermore,it has some new super hybrid rice combinations such as C Liangyou396,C Liangyou87,Cliangyou343,Cliangyou755,Cliangyou1102 which was significant in the examination and regional trial of Hunan Province and nation.The breeding of the sterile was the important success in the breeding of high quality super rice.