小麦再高产育种方案的设计与探讨

小麦再高产育种涉及到的目标性状是众多的数量性状，要对这些数量性状同时进行改良并重新加以组装，进而育成产量水平有较大突破的新品种，必须首先突破原有的传统育种方法，在杂交手段和杂种后代处理这两个关键性技术环节上进行较大的改进。把轮回选择的理论和穿梭育种的方法综合运用到小麦再高产的育种实践中去，提出了小麦再高产育种的新方案，进一步强化了轮选穿梭思路在小麦育种实践中的可操作性，以期通过实践的检验，探索再高产育种的新途径。

The Design and Study on the Breeding Projeet of a still High-yielding Wheat Variety

The aim character in breeding a still high-yielding wheat variety is the numerous quantitative characters. In order to improve and re-composite these characters and succeed in breeding a new high-yielding variety, the traditional breeding method should be broken to make a larger improvement in the heterotic method and the dealing-with the fi1ial-generation which are the two key technical links. This artctle puts forward a new project of breeding a still high-yielding wheat variety by using the theory of recurrent selection and the method of rotating breeding in the practice of wheat breeding. In this project we further stress the possible operating method of recurrent selection and rotating breeding. We hope to find a new way to breed a still high-yielding wheat variety through the test of practice.