【摘要】 W9834S是以W6111S的衍生系I3S为母本,常规早稻金宝2号为父本杂交选育而成的早籼型温敏核不育系,2005年1月通过湖北省科技厅组织的技术鉴定。W9834S在武汉的完全不育期60 d以上,不育期间不育株率100%,花粉败育度100%,套袋自交不育度99.99%。株型较紧凑,叶片挺直,叶色绿,不育起点温度低(23℃左右)。柱头外露率高,配合力强,所配杂交早稻组合熟期早,米质较优,产量高。更多还原

【Abstract】 W9834S,derived from a sterile plant in the F₂ generation of the cross of I₃S（a derivative line from W6111S） and Jinbao 2（an early rice variety） and developed by way of directional selection,is an early indica thermo-sensitive genic male sterile（TGMS） line with a low critical sterility-inducing temperature about 23℃.Grown in Wuhan,it had a long stable sterile period over 60 days with 100% of sterile plant rate,100% of pollen sterility rate and 0.01% bagged selfed-seed set.It is characteristic of good plant type,high stigma exertion rate,high combining ability and high yielding capacity in its multiplication and hybrid seed production.Deriving from it,some promising F₁ hybrids have been developed and showed strong tillering ability,early maturity,good grain quality and high yield.It was technically identified and registered in Hubei in January,2005.更多还原