耐储藏籼型杂交水稻恢复系福恢7185的创制与利用

Development and Utility of Storable Indica Restorer Line, Fuhui 7185

摘要: 福恢7185(FH7185)是以优良恢复系福恢653为受体亲本, 以耐储藏品种云恢290为供体亲本, 采用连续回交与系统选育的方法, 育成的籼型杂交水稻新恢复系; 该恢复系集株叶形态好、农艺性状优良、配合力高、恢复力强、耐储藏性好等优点于一体, 具有较好的市场应用价值和潜力。对比FH7185与对照的颖壳和淀粉粒显微结构, 发现FH7185颖壳上麸毛最少, 人工老化处理20 d后淀粉粒结构相对整齐, 这与人工老化结果一致, 说明FH7185具有较高的耐储性, 可以利用其创制出更多的耐储藏材料。

Abstract: A new variety of indica hybrid rice restoring line, Fuhui 7185, was developed by crossing and successive back-crossing with systemic selection between the strong restoring line, Fuhui 653, and a storable variety, Yunhui 290.The obtained Fuhui 7185 had desirable leaf morphology, agronomic traits, combining ability, resilience and storability that would enjoy high value and commercial potential on the market.Under microscope, the testas of Fuhui 7185 showed fewer trichomes than those of control.And, the structure of starch granules remained relatively unaltered after artificial aging for 20 d, suggesting a high storability for the newly developed hybrid rice.