多棱皮大麦大粒种质资源的初步分析及在育种上的应用

Preliminary Analysis on Big Seed Germplasm Resources of Six-row Hulled Barley and Its Application to Barley Breeding

对已出版的全部大麦资源目录上6775份多棱皮大麦千粒重进行分关统计、整理分析。初步结果：①多棱皮大麦千粒重随育种方法改进而不断提高。②展现了目前我国选育的多技皮麦卡拉重大作的分布状况和拉重水平。③国内多技皮大麦大位资源缺乏，而保存的国外多植皮大麦大粒资源相对较多。④多棱皮大麦大粒资源的分布与目前千粒重高低分布区域基本吻合，主要在春大麦和裸大麦区。⑤多棱皮大麦大粒资源主要表现春性、稀稳。并对多技文大麦大粒种质在育种上的应用作了初步探讨。

This paper deals with the preliminary studies on 1000 - kemels weight of 6775 six - row hulled barley from documented barley germplasm which have been pubIished in China. The results are as follows: ① 1000 - kernel weight of six - row hulled barley are increased gradually,with breeding techniques improved. ②Distribution and level of 1000 - kernel weight in bred sixrow hulled barley are described. ③Big seed germplasm resources in six - row hulled barley are absence in China, but it's resources from abroad are more. ④Distributon of big seed germplasm resources in six - row hulled barley are as same as distribution of 1000 - kernel weight. It principally distributes in spring barley areas and naked barley areas. ⑤Big seed germplasm resources in sixrow hulled barley principally show spring habit and loose spike- In addition, preliminary studies on it's application to barley breeding are made.