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    烤烟育苗新方式的筛选与研究

    Evaluation of a New Seedling Production Method of Flue-cured Tobacco

    • 摘要: 为了进一步提高烟苗整体素质,培育强大的幼苗根系,克服“水生根”、“螺旋根”现象,引用了水床湿润育苗技术,并与漂浮育苗、托盘育苗两种育苗方式进行了比较试验。结果表明,水床湿润育苗技术能加快种子萌发和出苗,出苗期可提前一周,整个生育期缩短7~11 d;烟苗长势健壮,株高、茎围、叶片等性状良好,且抗逆性强;根系发达,单株侧根数较对照增加72.6 条、根干重提高0.034 g,烟苗整体素质高,基本无水生根和螺旋根现象。因此,可作为烟区新的育苗方式推广应用。

       

      Abstract: To improve flue-cured tobacco seedlings with stronger root system, we compared seedling production on moist tray with seedling nursing on float system and seedling production on tray to select the best method of seedling production in central Henan Province. The results showed that seeds germinated and emergenced up to one week earlier in moist tray treatment than the other two treatments. Compared with the other two treatments, the whole seedling growth period with moist tray was shortened by 7-11 days. Furthermore, the seedlings were sound, and the plant height, stalk circumference and leaves were well developed, the stress resistance of tobacco plant was enhanced. The root system was well developed. The lateral root per plant increased by 72.6 strips and the dry mass of root system increased by 0.034 g. The seedling production on moist tray could be extended as a new seedling production method in tobacco production areas.

       

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