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[目的]研究竹醋液对不同品种烤烟种子萌发及幼苗生长的影响,为其在烟草生产上的应用提供参考。[方法]采用室内培养皿种子萌发试验和温室育苗方法,分别设50、100、200、400倍竹醋液稀释处理,以清水作为对照,测定云烟97、贵烟2号、韭菜坪2号和毕纳1号种子发芽和云烟97烟苗生长的相关指标。[结果]在萌发试验过程中,与对照相比,使用不同浓度竹醋液抑制了不同烤烟品种种子的萌发和生长,各烤烟品种的种子发芽率、发芽指数、活力指数、幼苗全长、根长、茎长、鲜重均呈现降低趋势,且部分达到显著水平。在幼苗期对云烟97叶面喷施不同浓度竹醋液,与对照相比,喷施不同浓度竹醋液可不同程度提高幼苗素质。其中在不同浓度竹醋液处理中,以100倍处理烟苗株高、最大叶长和根系体积最高,分别为3.36、10.14 cm和0.92 ml;以400倍处理的烟苗茎围、干物质重和最大叶宽最高,分别为1.82 cm、0.262 g和5.74 cm。[结论]在培育皿中添加不同浓度竹醋液会抑制烤烟种子的萌发和幼苗生长;在漂浮育苗过程中,对幼苗叶片喷施100~400倍竹醋液可在不同程度上促进幼苗生长并改善其质量。
[Objective] The research aimed to study the effect of bamboo vinegar on the seed germination and seedling growth of different varieties of flue-cured tobacco and provide references for its application in tobacco production. [Method] With indoor petri dish seed germination test and greenhouse seedling raising method, 50, 100, 200 and 400 times bamboo vinegar dilution treatments were respectively taken as controls to determine the effects of Yunyan 97, Guiyan 2, Leekoping 2 and Poa 1 seed germination and Yunyin 97 tobacco seedlings growth related indicators. [Result] Compared with the control, the bamboo vinegar inhibited the germination and growth of seeds of different flue - cured tobacco varieties in the germination test. The germination rate, germination index, vigor index, total seedling length, Length, stem length, fresh weight showed a downward trend, and some reached a significant level. In the seedling stage Yunyou 97 leaves were sprayed with different concentrations of bamboo vinegar, compared with the control, spraying different concentrations of bamboo vinegar can improve seedling quality to varying degrees. Among them, the plant height, maximum leaf length and root volume of tobacco seedlings treated with 100 times higher concentration of bamboo vinegar were the highest, which were 3.36, 10.14 cm and 0.92 ml, respectively. The stem circumference, dry matter weight And maximum leaf width of the highest, respectively 1.82 cm, 0.262 g and 5.74 cm. [Conclusion] Adding different concentrations of bamboo vinegar to the culture dish could inhibit the seed germination and seedling growth of flue-cured tobacco. Spraying 100-400 times bamboo vinegar solution on seedling leaves could promote seedling growth to varying degrees in the process of floating seedling growth. Improve its quality.