A grey recurrent population improvement of wheat was suggested by combining the grey breeding method with the wheat dwarf male-sterile technology.
将灰色育种方法与矮败群体改良方法相结合，提出了小麦灰色轮回群体改良方法。
However, the narrow genetic basis of wheat has limited the further improvement of yield and quality, which is essential to maintain the increasing population.
但随着小麦栽培品种单一化导致基因大量流失，使其遗传基础日益狭窄和抗源匮乏，对其产量和品质的进一步改良起着极大的限制作用。
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