【摘要】 用甜菜单粒雄性不育系ms128的夏播根、伏播根和春播根分别与6443、9903、TE8、9103、334-1Q和334-1T六个父本(夏播)杂交。对杂交组合进行裂区试验,经结果分析表明:夏播母本组合与伏播母本组合的根产量和产糖量在5%和1%水平上无差异,两者分别与春播组合在1%水平上存在极显著差异,有明显优越性;三种组合间在含糖率上无显著差异,但以夏播组合含糖高。因此,在繁育以ms128为母本的甜菜品种时,最好采用夏播母本,夏播为其优育期。更多还原

【Abstract】 This experiment was crossed by the spring sowing roots,the summer sowing roots and the hot days sowing roots of the sugarbeet monogerm seed male sterility 128 with the six male parents(summer sowing)include 6443、9903、TE8、 9103、334-1Q and 334-1T.The result of the split plot experiment of the crossed combination showed: The root yield and sugar yield of the summer sowing combination and the hot days sowing combination was no difference at 5% level and 1% level.They existed big strking difference at 1% level between the spring sowing combination,and had superiority on it;The sugar content of the three combination existed no diffenrence,but the sugar content of the summer combination was higher.So,when we breed the varieties ms128 as their female parent,we will use the summer sowing female parent,and the summer sowing time is its best breeding time.更多还原