水稻作为最主要的粮食作物之一,其产量和质量都倍受人们关注,通过将一些优良基因导入水稻,或是通过物理、化学等手段诱变,培养优质、高产、多抗新品种是现代育种科学的发展方向。但无论是基因片段的转入或是物理、化学的诱变处理,其对象多是具有分化再生能力的愈伤组织。自1965年以来,研究者们先后以水稻各部位为材料,诱导出愈伤组织和再生出植株,取得了较好的结果。但由于这些材料的来源受季节的限制,取材不便,而成熟种胚则不存 As one of the most important food crops, rice is attracting much attention and attention. By introducing some good genes into rice or mutating through physical and chemical methods, it is a modern way to cultivate high quality, Breeding science development. However, whether it is the transformation of gene fragments or physical or chemical mutagenesis, most of the objects are callus with differentiation and regeneration ability. Since 1965, researchers have used various parts of rice as materials to induce callus and plant regeneration, and achieved good results. However, the source of these materials is limited by the season, inconvenient to obtain, and mature embryos do not exist