S.Conger 等曾阐明了在高等植物中硼对热中子诱发生物学效应的作用。Conger 和其他科学家通过硼添加剂预处理多种植物种的组织,对此做了进一步的研究。一般结果是,每单位中子对各种生物学事件的影响随硼浓度的增加而增大,实际上最重要的问题之一,是硼添加剂是否对热中子诱发的突变谱和突变频率有修饰作用。为探索热中子与硼添加剂复合处理作物种子提高诱变效率的途径,在 Kyoto 大学游泳池式反应堆中进行了一系列实验。本文报道了经硼处理的水稻种子在热中子吸收剂量学和抽穗期突变频率方面的实验结 S. Conger et al. Have demonstrated the effect of boron on thermal neutron-induced biological effects in higher plants. Conger and other scientists conducted a further study of the pretreatment of tissues of various plant species with boron additives. The general result is that the effect of neutron per unit on various biological events increases with increasing boron concentration. In fact, one of the most important problems is whether the boron additive has a mutation frequency and mutation frequency to thermal neutrons Modification effect. A series of experiments were conducted in a pool-type reactor at Kyoto University in order to explore ways to increase the mutagenic efficiency of crops by thermal neutron-boron additive treatment. This paper reports the experimental results of the boron-treated rice seeds on the calorimetry of neutron absorption and the frequency of mutation at heading