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用不同剂量的氮离子束辐照不同烟草品种的干种子，对种子发芽率进行了测定。结果表明，不同品种间、不同处理剂量间差异均达显著水平；品种与剂量互作效应间差异也达显著水平。
The seeds of different tobacco varieties were irradiated with different doses of nitrogen ion beam to determine the seed germination rate. The results showed that there was significant difference among different treatments and between different treatments, and the difference between varieties and dose interaction was also significant.