整四倍体甜菜子代中,由于减数分裂异常和非整倍体有结实能力的配子形成,而出现相当比率的染色体数目变化较大的非整倍体植株。Rommel 曾报道,非整倍体型可达到40%,而非整倍体的产量仅为整倍体产量的40—50%,因此非整倍体将严重影响四倍体的超级原种的繁育和三倍体杂交率,以及播种质量,并危及甜菜产量。国外极其重视甜菜非整倍体的研究,国内尚未有资料报导。我们在双丰一号(4n= Whole tetraploid beet offspring, due to meiotic abnormalities and aneuploidy with strong ability of gamete formation, and a considerable proportion of chromosomes larger changes in aneuploid plants. Rommel reported that aneuploidy can reach 40%, while aneuploid yields only 40-50% of the euploid, so aneuploidy will seriously affect the tetraploid superbred breeding and Triploid hybridization rates, as well as sowing quality, compromised beet yield. Abroad, attaches great importance to beet aneuploidy research, there is no data reported. We are in Shuangfeng No.1 (4n =