不同倍性的甜菜种子通过卫星搭载诱变处理后 ,表现出不同的敏感性 ,与对照相比 ,四倍体材料部分性状在生长过程中受到抑制 ,生育期延迟 ,种子千粒重降低 5 %～ 2 5 % ,块根产量下降 2 6.5 %～ 47% ;对二倍体材料的生长有明显的促进作用 ,生长势增强 ,千粒重增加 5 %～ 92 .3% ,块根产量增加 15 %～ 35 %。初步说明外层空间环境不仅影响植物的生理状态 ,也影响植物的遗传基因。 Beet seeds with different ploidy showed different sensitivities after carrying mutagenesis by satellite. Compared with the control, some characters of tetraploidy material were inhibited during growth and the growth period was delayed. The seed weight per 1000 seeds decreased by 5% ~ 2 5%, and root tuber yield decreased by 6.55% ~ 47%. The growth of diploid material was obviously promoted. The growth potential was enhanced, the grain weight increased by 5% -92.3% and the root yield increased by 15% -35%. Preliminary description of the outer space environment not only affects the physiological state of plants, but also affect the plant’s genetic.