安徽省主要育成水稻品种及其系谱分析

Analysis of the Main Developed Rice Varieties and their Genealogy in Anhui

４０多年来，我省育成水稻品种的系谱组成中几个骨干亲本的血缘主要来自早籼广、陆矮４号、矮脚南特，中籼ＩＲ２６、ＩＲ２９、密阳２３，晚粳农垦５８等，占全部育成品种（不包括地方品种）的７０％。未来的育种策略，除以现有育成品种为基础外，还必须进一步开发和引进国内外优质稻种资源，拓宽遗传背景，不断丰富我省水稻育成品种的遗传基础，提高品种的增产潜力和适应能力。

Analysis on the genealogy of developed rice varieties in Anhui Province in the past forty years or more has showed that several common parents are mainly from early--season indica cultivars'Guangluai4'and 'Aijiaonante', medium--season indica cultivats 'IR26', 'IR29' and 'Miying23' and late--season japonica cultivar 'Nongken58',etc. The varieties originated from these parents accounted for 70% of the total developed varieties. Rice breeding experience has indicated that elite germplasm resourses at home and abroad must be further introduced and exploited together with the developed varieties to provide a diversified genetic background and a rich genetic basis for improving production potential and adaptability of rice variety.