抗稻瘟病优质中熟早稻湘早143的选育

Development of Good Grain Quality & Blast Resistant Early-season Rice Variety Xiang-zao 143

围绕改良早籼稻品质、增强其稻瘟病抗性的目标,利用已有的优质稻中间材料进行有性杂交,采取本地选育与病圃筛选同步进行的办法,结合南宁、海南南繁加代,较好地将"优质、高产、早熟、抗病"结合在一起,育成抗稻瘟病优质稻中熟早籼新品种湘早143。对其特征特性及在南方稻区区试的表现作了介绍。

To improve grain quality and blast resistance of early-season rice variety, by making crosses between the breeding materials bred by our institute,then by selecting individual plants at the target area and also at the blast-screening nursery, and by carrying out Rapid Generation Advance at Nanning and Hainan, We have developed a new early-season rice variety_Xiangzao 143. It has good grain quality and is resistant to rice blast as well. Its characteristics and performance in the regional trial of rice in south part of China have also briefly introduced.