大果型桂花味石硖龙眼芽变新株系的选育

Breeding of a new large fruit and sweet osmanthus flavor longan strain

在黄壳石硖龙眼 (EuphorialonganaLam .)无性系群体中通过营养系选种选育出大果型桂花味石硖龙眼芽变新株系 ,平均单果重达 10 5～ 11 1g ,比普通石硖龙眼重 2 6 %～ 31% ;果粒均匀 ;果肉具有桂花香味 ,有 3种香气成分只在芽变系中检出 ;复叶、花序、果穗显著比对照短 (P <0 0 1,P <0 0 5 ) ;单株产量比对照稍高 ,果实品质基本保持原黄壳石硖的水平 .认为是优良芽变新株系 .

A bud sport was discovered in a clone of Shixia longan (Euphoria longana Lam.). The bud sport fruit is 26%～31% larger than normal Shixia longan fruit, and has sweet osmanthus flavor. Its flavor components were not the same as the normal Shixia. The pinnate leaves, inflorescences and clusters are notably shorter than those of the normal Shixia longans. It seems to be a new promising strain.