摘要
本文综述了被子植物多胚苗的研究进展。在被子植物中多胚苗材料的种类很多，而只有特定起源的多胚苗材料在作物杂种优势固定中才具有比较大的实用价值。关于被子植物多胚苗的发生机理目前还没形成统一的定论。单倍性、二倍性和多倍性多胚苗在作物育种上具有各自不同的意义。
Advance in polyembryonic seedling (PS) in angiosperms is summarized in the paper. There are many kinds of PS materials in angiosperms,but the PS materials from the special polyembryoes are only thought to be valuable in fixing the crop heterosis. However,affirmative conclusion about the mechanism of producing the PS material in angiosperms is not still formed and obtained. The haploid,diploid and polyploid PS materials have respectively special value in crop breeding.
出处
《植物学通报》
CSCD
1998年第2期1-7,共7页
Chinese Bulletin of Botany
基金
国家自然科学基金
关键词
被子植物
多胚苗
多倍性
Angiosperms,Polyembyonic seedling,Polyploidy
