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以能量为80MeV/u的12C6+离子为诱变源辐照油菜、胡麻、大葱和兵豆的干种子后,研究了不同剂量处理对4种农作物M1和M2代种子出苗率及幼苗生长的影响。实验结果表明:重离子所导致的M1代生物学效应因不同的物种而表现出一定的差异,适当剂量C离子辐照促进了油菜和胡麻M1代出苗率和幼苗的生长;而不同剂量的C离子辐照抑制了大葱的出苗率和幼苗的生长;兵豆3个剂量下的出苗率和对照相差很小,但90Gy辐照有利于其生长。到了M2代,4种作物辐照组的发芽率都低于各自的对照组;30Gy剂量下的油菜、胡麻和兵豆长势最好;大葱依然是对照的长势最好。
The effects of different dosages on seed germination rate and seedling growth of M1 and M2 generations of four crops were studied after 12C6 + ions with energy of 80MeV / u were used as mutagens to irradiate dry seeds of rape, flax, green onion and vetiver bean. The results showed that: the biological effects of M1 generation caused by heavy ions showed some differences due to different species, and the appropriate dose of C irradiation promoted the emergence and seedling growth of M1 generation of rapeseed and flax. However, different doses of C Ion irradiation inhibited the emergence rate and seedling growth of Welsh Onion; the emergence rate of the three doses of Artemisia sp. Was similar to that of the control, but 90 Gy irradiation was beneficial to its growth. By the M2 generation, the germination rates of the four crop irradiation groups were lower than their respective control groups; the rape, flax and vetiver beans under the 30 Gy dose had the best growth rate;