CAJ | 학술논문

恒达 A 是以 D62B为母本、IR58025B为父本的杂交后代 F2选株与龙特甫 B进行复交选育的保持系再与珍汕97A 转育而成的籼型三系不育系。于2014年通过福建省农作物品种审定委员会审定（闽审稻2014025）。该不育系不育性彻底，异交率高，穗大粒多，分蘖力强，配合力好。本文介绍了不育系恒达 A 的选育过程、主要生物学特性及配制杂交水稻新品种的表现。
항체 A 시이 D62B위모본、IR58025B위부본적잡교후대 F2선주여룡특보 B진행복교선육적보지계재여진산97A 전육이성적선형삼계불육계。우2014년통과복건성농작물품충심정위원회심정（민심도2014025）。해불육계불육성철저，이교솔고，수대립다，분얼력강，배합력호。본문개소료불육계항체 A 적선육과정、주요생물학특성급배제잡교수도신품충적표현。
Hengda A was a CMS Line rice bred by multiple-crossing the maintainer lines selected betweenLongtepu B and the filial generation F2 of the hybrid of D6 2B and IR5 802 5B with Zhenshan 9 7A through successivebackcrossing for years.It was registered and released for commercial applications in Fuj ian in 20 1 4.Its outstandingcharacteristics included a complete sterility,high outcrossing rate,large panicle with numerous grains,strongtillering ability and desirable combining capacity.The breeding process,botanical characteristics and performance ofthe hybrid rice varieties of Hengda A are presented.