摘要
通过籼粳杂交、广亲和特性鉴定以及育性恢复能力测定等手段,选育出CH58、CH59、C18和C84四个籼粳中间型广亲和恢复系。生物学特性研究结果表明,CH58、CH59、C18和C84的程氏指数分别为11、13、13和15,其中CH58、CH59和C18的籼粳属性为偏籼,C84为偏粳。广亲和特性鉴定和育性恢复能力测定结果表明,四个恢复系具有良好的广亲和性,且都能恢复滇型、BT型、矮败型等粳稻不育系以及野败型、印水型等籼稻不育系的育性,恢复谱广。花时特性研究表明,籼粳中间型广亲和恢复系的开花高峰要明显早于粳稻不育系春江16A。粳不籼恢亚种间杂交稻在单株产量、每穗粒数、二次枝梗数、株高、一次枝梗数和剑叶宽等性状上表现出明显的中亲优势和竞争优势。利用CH58等四个籼粳中间型广亲和恢复系与粳稻不育系配组,已选育出春优58、春优658、春优59、春优618等粳不籼恢亚种间杂交稻,已通过国家、浙江省等品种审定。CH58等四个籼粳中间型广亲和恢复系广亲和性好,恢复谱广,在三系法籼粳亚种间杂种优势利用中具有良好的应用前景。
Pour indica-laponlea intermediate type restorer lines CH58, CH59, C18 and C84 were bred by indica-japonica crossing, identification of wide compatibility and restoring ability. The investigation of biological characteristics showed that the Cheng＇s indexes of CH58, CH59, （218 and C84 were ll, 13, la and 15, with the former three belonging to indicalinous and the last one to japonicalinous. Identification of wide compatibility and restoring ability indicated that the four restorer lines had a good wide compatibility, and they can restore the fertility of japonica CMS lines （Dian type, BT type and DA type） and indica （;MS lines （WA type and YS type）. The investigation of flowering characteristics indicated that the flowering peak of the four indica-japonica intermediate type restorer lines were much earlier than the japonica CMS line Chunjiang 16A. The mid-parent heterosis and competitive heterosis of yield per plant, grain number per panicle, secondary branch rachis number per panicle, plant height, primary branch rachis number per panicle and flag leaf width were obvious in japonica-indica hybrid rice. Japonica-indica hybrid rice （2hunyou 58, Chunyou 658, Chunyou 59 and Chunyou 618, developed from japonica CMS lines and the indica-japonica intermediate type restorer lines were registered and released by National Crop Variety Appraisal Committee or Zhejiang Provincial Crop Variety Appraisal Committee. The four indica-japonica intermediate type restorer lines with wide comnatibilitv and broad restoring sDeetrum have a good prospect in the subspecies heterosis utilization.
出处
《中国水稻科学》
CAS
CSCD
北大核心
2012年第6期656-662,共7页
Chinese Journal of Rice Science
基金
国家863计划资助项目(2010AA101301)
农业部中国超级稻选育与试验示范项目
浙江省0406计划资助项目
中国水稻研究所基本科研业务费专项资金资助项目(2009RG001-5)
关键词
籼粳中间型恢复系
籼粳属性
广亲和性
花时
恢复谱
杂种优势
indica-japonica intermediate type restorer line
indica and japonica differentiation
wide compatibility
flowering tirne
restoring spectrum
heterosis
