稻米的腹白是指稻米腹部粉质淀粉的分布特征。腹白大小一般能反映稻米的品质,凡腹白小的粉质部分少,角质部分多者表明米质好,腹白大者米质差。育种过程中对米质的选择一般以感官鉴定腹白大小。由于稻米腹白的有无大小不仅受遗传性的制约,也受环境条件的影响,因此,搞清腹白的遗 The whiteness of rice refers to the distribution characteristics of the starch in the abdomen of rice. Abdomen white size can generally reflect the quality of rice, where small belly white part of the silty, horny part of the more that the good quality of rice, white belly white poor quality. Breeding process of the quality of the general sensory selection of ventral white size. As the whiteness of rice is not only due to the size of the genetic constraints, but also by environmental conditions, therefore,