水稻的粒型包括粒的长度、粒的宽度和长宽之比,既是水稻外观品质之一,又能影响粒质量,而粒质量是影响水稻产量的重要因子。因此,改良水稻粒型、粒质量具有十分重要的意义。基于此,综述水稻粒型、粒质量基因的克隆及其在分子育种中的应用,为提高水稻生产产量和改良品质提供理论依据。 Rice grain size, including grain length, grain width and length to width ratio, is not only one of the quality of rice appearance, but also affect the grain quality, and grain quality is an important factor affecting rice yield. Therefore, to improve rice grain size, grain quality is of great significance. Based on this, the cloning of rice grain-type and grain-quality genes and their application in molecular breeding were reviewed, providing a theoretical basis for improving the yield and quality of rice.