不同植物生长调节剂及其与Mo、维生素C配施对烤烟农艺性状和化学成分的影响

研究了不同的植物生长调节剂萘乙酸(NAA)、赤霉素(GA)、生长素(IAA)及其与钼(Mo)、维生素C(Vc)配施对烟草农艺性状和化学成分的影响.结果表明,喷施后明显促进了烟草生长发育,倒一叶的叶长、叶宽和叶面积最大增幅分别达15.24%、34.23%和57.98%,倒十叶的叶长、叶宽和叶面积最大增幅分别达9.74%、17.31%和29.85%;株高比对照增幅达19.07%,产量提高也较为显著;还原糖含量略有提高,烟碱含量降低显著,对多酚含量影响较小.处理中以NAA GA IAA Mo和 NAA GA IAA ABA效果最佳,降碱效果显著,两糖差分别为3.50%和3.97%,糖碱比为7.80和7.96,协调了化学成分.

Effects of Different Plant Growth Regulators and Nutriments on the Agronomic Traits and Quality in Flue-cured Tobacco

The experiments were conducted to study the effects of different plant growth regulators NAA,GA,IAA and some nutriments on tobacco agronomic traits and chemical components.The results indicated that the growths of tobacco were promoted by NAA,GA,IAA obviously. The length ,width and leaf area of the last leaf increased by 15.24%,34.23% and 57.98% respectively,and the length ,width and leaf area of the leaf latter rised by 9.74%,17.31% and 29.85% respectively.The plant height increased by 19.07% compared with CK and the yield went up remarkably. Reducing sugar was improved slightly,nicotine content was reduced remarkably and polyphenolic content was affected slightly.NAA GA IAA Mo and NAA GA IAA ABA are the best treatment,the effect of reducing nicotine and nicotine are obvious. Margin of two sugar are 3.50% and 3.97% ,the ratios of carbohydrate to alkali are 7.80 and 7.96,and the tobacco chemical components are harmonized.