不同化学调节剂对烤烟上部叶性状的影响

The Effects of Different Chemical Agolators on Agronomic Traits of Upper Leaf of Flue-cured Tobacco

通过盆栽试验研究了不同的化学调节剂(S-ABA)对调控烤烟上部烟叶性状的影响。结果表明:不同的化学调节剂对烤烟上部烟叶生长的影响不尽相同,其中以H5,H2,H3处理对上部叶宽、叶面积影响最大,效果最好,叶宽分别增长60.64%、42.55%、40.43%,日均叶面积分别增长84.25%、64.67%、54.62%;H4,H6处理次之,而H1处理表现欠佳;总体来看,H5,H2,H3处理对改善上部烟叶效果最好,主要表现在叶片宽大,叶形,叶面积指数均接近于中部叶,而对叶长促进不明显,符合烤烟生产要求。

The effects of different chemical agolators on agronomic traits of upper leaf of flue-cured tobacco were studied through pot experiment. The results showed that the best infection effect appeared on width and area of upper leaf is H7, H2, and H3 treatment： the leaf-width increased 60.64%, 42.55%, 40.43% respectively and leaf-area increased 84.25%, 64.67%, 54.62% respectively; H6, H8 treatment were worse and H1 treatment was the worst. In a whole, HS, H2, and H3 treatments had the best improvement effect of upper leaf, which mainly appeared in width, shape and leaf-area index of upper leaf were closed to middle leaf, but improvement effect of leaf length was not significantly. These agronomic traits were suited for the demands of flue-cured tobacco＇ s production.