【摘要】 以微核测定法,对极低温（-196℃）和常温下照射材料的细胞学研究结果表明:极低温有保护效应,能减轻M₁代的生理损伤:辐射种子萌动芽尖间期细胞的微核率与M₂代某些性状突变率具有一定的相关性;极低温单因子处理种子亦可导致染色体畸变。该实验为阐明极低温对种子照射效应的影响提供了微观依据。更多还原

【Abstract】 The results of research in cytology of the radiated material under the extremely tow tempretune （-196℃） （ELT） and normal tempretune in the micronucleum ensunence method show: that the ELT has protection and can reduce the physiological damage of M₁ generation; there is a certain relatives between the micronucleum rate of radiatel seeds in germanating--rootage- interphase cell and the mutation-fregaency of some characters of M₂ gemenation; the chromosome adermtion was produced under the ELT. The test has offered some microcosmic evidenles to deal with the idear that seeds radiating effects sholcd be affected.更多还原