喷施植物生长调节剂对烤烟品质的影响

Effect of Plant Growth Regulators on Quality of Flue-cured Tobacco

[目的]通过在现蕾期和打顶期叶面喷施3种植物生长调节剂,研究植物生长调节剂对烟叶含梗率和其他品质指标的影响。[方法]以云烟87为试验材料,研究喷施各植物生长调节剂(6-BA、DA-6、LaCl 3)对烤后烟叶外观质量、物理指标、化学成分、感官质量、经济性状的影响。[结果]3种喷施植物生长调节剂的处理能显著提升烤烟的外观质量、单叶重、叶质重、钾氯比、氮碱比、糖碱比、感官质量,显著降低烤烟的含梗率和烟碱,3种植物生长调节剂中LaCl 3对烤烟各项指标提升最为明显。[结论]使用6-BA、DA-6和LaCl 3等植物生长调节剂在现蕾期和打顶期喷施,可以显著提升烤烟质量,降低含梗率,促进烤烟的生长发育。

[Objective]To study the effects of plant growth regulators on stemming rate and other quality indexes of tobacco leaves by foliar spraying.[Method]Using Yunyan 87 as the test material,the effects of spraying plant growth regulators(6-BA,DA-6,LaCl 3)on the appearance quality,physical index,chemical composition,sensory quality and economic shape of tobacco leaves after roasting were studied.[Result]Three treatments sprayed with plant growth regulators could significantly improve the appearance quality,single leaf weight,leaf weight,potassium-chloride ratio,nitrogen-base ratio,sugar-base ratio and sensory quality of flue-cured tobacco,and significantly reduce the stemming rate and nicotine of flue-cured tobacco,and among the three plant growth regulators,LaCl 3 improved the most obvious indicators of flue-cured tobacco.[Conclusion]The use of plant growth regulators such as 6-BA,DA-6 and LaCl 3 in the bud stage and the topping stage can effectively and significantly improve the quality of flue-cured tobacco,reduce the stalk rate,and promote the growth and development of flue-cured tobacco.