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1.甘兰型胜利油菜干种籽以1.5万仑、3万仑、6万仑、9万仑及12万仑的~(60)Co—γ射线进行辐射处理,对其照射一代(M_1)的发芽率、发芽势、幼根生长速率、干物质重、根颈周长、冬前冬后叶绿素含量、含油率及碘值等作了测定。 2.低剂量(1.5万仑、3万仑)处理能提高植株的生理机能,促进植株生长发育,高剂量处理(6万仑、9万仑、12万仑)对生长发育有抑制作用,辐射损伤有随剂量递增而增加的趋势。 3.根据本实验所得结果,达到50％存苗率的适宜剂量为6—12万仑,存苗率约为31—53％。 4.各处理在M_1代的含油量比对照提高3—7％,但碘值似无变化。
1. The radish seeds of Brassica napus L. were radiated with ~ (60) Co-γ rays of 15,000, 3,000, 6,000, 9,000, and 12,000. The germination rate, the germination potential, the growth rate of young root, the dry weight, the root circumference of neck, the content of chlorophyll in winter before winter, the oil content and iodine value were measured. Low-dose (15,000-lun, 30,000-lun) treatment can improve plant physiological function, promote plant growth and development, high dose treatment (60,000 Lun, 90,000 Lun, 120,000 Lun) can inhibit the growth and development, Damage tends to increase with dose. According to the results obtained in this experiment, the optimum dose of 50% seedling survival rate is 6-120000 Lun, seedling survival rate of about 31-53%. The content of oil in M_1 generation increased by 3-7% compared with the control, but the iodine value did not change.