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利用ＰＥＧ（ 聚乙二醇） 浸种处理后的烤烟种子进行发芽试验和苗床育苗试验。结果表明：用ＰＥＧ 浸种处理烤烟种子，可明显地提高种子发芽势、发芽率、种子活力以及幼苗根系活力、干重、根茎（ 干重） 比和幼苗脯氨酸含量，使幼苗长势和抗旱力增强。ＰＥＧ 浸种适宜浓度为２０ ％ 。
The seeds of flue-cured tobacco after soaking with PEG (polyethylene glycol) were tested for germination and seedling nursery. The results showed that seed germination potential, germination rate, seed vigor and seedling root activity, dry weight, rhizome (dry weight) ratio and seedling proline content were significantly increased by soaking seeds with PEG, which made seedling growth and drought resistance Enhanced. PEG soaking the appropriate concentration of 20%.