烤煙育苗新方式的篩選與研究
Evaluation of a New Seedling Production Method of Flue-cured Tobacco
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摘要: 為了進一步提高煙苗整體素質(zhì),，培育強大的幼苗根系，克服“水生根”,、“螺旋根”現(xiàn)象,，引用了水床濕潤育苗技術(shù)，并與漂浮育苗,、托盤育苗兩種育苗方式進行了比較試驗,。結(jié)果表明，水床濕潤育苗技術(shù)能加快種子萌發(fā)和出苗,，出苗期可提前一周,，整個生育期縮短7～11 d；煙苗長勢健壯,，株高,、莖圍、葉片等性狀良好,，且抗逆性強,；根系發(fā)達，單株側(cè)根數(shù)較對照增加72.6 條,、根干重提高0.034 g,，煙苗整體素質(zhì)高，基本無水生根和螺旋根現(xiàn)象,。因此,，可作為煙區(qū)新的育苗方式推廣應(yīng)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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