中国水稻科学2012，Vol.26Issue(6)：656-662,7.DOI:10.3969/j.issn.1001-7216.2012.06.004
4份籼粳中间型广亲和恢复系的生物学特性及其杂种优势利用
Biological Characteristics and Heterosis Utilization of Four indica-japonica Intermediate Type Restorer Lines with Wide Compatibility
摘要
Abstract
Four indica-japonica 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, C18 and C84 were 11, 13, 13 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 CMS 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 Chunyou 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 compatibility and broad restoring spectrum have a good prospect in the subspecies heterosis utilization.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Key words
indica-japonica intermediate type restorer line/ indica and japonica differentiation/ wide compatibility/ flow-ering time/ restoring spectrum/ heterosis分类
生物科学引用本文复制引用
林建荣,宋昕蔚,吴明国..4份籼粳中间型广亲和恢复系的生物学特性及其杂种优势利用[J].中国水稻科学,2012,26(6):656-662,7.基金项目
国家863计划资助项目(2010AA101301) （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). （2009RG001-5）
