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为探索衡阳烟区不同播种期对烤烟产质量的影响,采用4个播种期处理,考察烟苗素质和大田期烟株的生长发育特性,以及烟叶烘烤后产质量特性。结果表明,12月15日播种的烟苗生育期适宜,烟苗成活率达94%,烟苗健壮;移栽揭膜后40 d能够保留13片有效叶片,株高和茎围分别达到88 cm和8.8 cm,叶面积显著大于其他处理;烤后烟叶外观质量颜色橘黄程度高,成熟度好,综合得分均明显优于其余处理,说明适当推迟播种期能够显著提高烟苗素质,增加产值,改善烤后烟叶质量。
In order to explore the effect of different sowing date on the yield and quality of flue-cured tobacco in Hengyang tobacco field, 4 sowing dates treatments were used to investigate the quality of tobacco seedlings and the growth and development characteristics of tobacco plants in the field and the quality characteristics of tobacco leaves after baking. The results showed that the tobacco seedlings planted on December 15 were suitable for growing period, the survival rate of tobacco seedlings was 94%, and the tobacco seedlings were robust. After 40 days after transplanting, 13 effective leaves could be retained and the plant height and stem circumference reached 88 cm And 8.8 cm, leaf area was significantly greater than other treatments; after roasting, the appearance quality of the tobacco leaves was high in orange color and good in maturity, and the comprehensive scores were significantly better than the other treatments, indicating that proper postponing sowing could significantly improve the quality of tobacco seedlings, Flue-cured tobacco quality.