植烟生态区、品种及其互作对烤烟多酚含量及品质的影响

为探究毕节烟区不同生态区（光照、降雨、温度等）对烤烟品种云烟105和云烟116多酚含量及品质的影响,采用二因素随机区组设计,分别在贵州省毕节地区威宁县和大方县植烟生态区种植云烟105和云烟116,并对中部烟叶多酚类物质及常规化学品质含量进行测定分析。结果表明,植烟生态区、品种及其互作对多酚含量的贡献不同,生态区对烤烟新绿原酸、绿原酸、隐绿原酸、莨菪亭、芸香苷及总酚的贡献率分别为22.68%、7.68%、9.67%、94.40%、9.48%和3.14%;品种的贡献率分别为68.53%、60.91%、82.39%、0.04%、63.10%和69.34%;生态区与品种互作的贡献率分别为8.79%、31.41%、7.94%、5.55%、27.42%和27.52%。云烟105在大方生态烟区的绿原酸、新绿原酸、隐绿原酸和芸香苷含量更高,而云烟116在威宁生态烟区的莨菪亭含量更高。烟叶多酚含量与磷、钾、还原糖及总糖含量呈显著正相关关系,与烟碱含量呈显著负相关关系。综合烟叶多酚及化学成分来看,毕节新引进的品种云烟105和云烟116更适宜种植在大方地区,且云烟105表现优于云烟116。

Effects of Tobacco Planting Ecoregions,Varieties and Their Interactions on Polyphenol Content and Quality of Flue-Cured Tobacco

To investigate the interactions between the flue-cured tobacco tpyes Yunyan 105 and Yunyan 116 and various ecological environments (such as light, rainfall, temperature, etc.) in the Bijie tobacco region, two-factor random block were designed. Yunyan 105 and Yunyan 116 were planted in Weining County and Dafang County, Bijie district, Guizhou Province, respectively, and the contents of polyphenols and conventional chemicals in tobacco leaves in the central part were determined and analyzed. The results showed that the contributions of tobacco-growing ecoregions, varieties and the contents of interactive polyphenols were different. The contribution rates of ecoregions to flue-cured tobacco neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, scopolamine, rutin and total phenols were 22.68 %, 7.68%, 9.67%, 94.40%, 9.48% and 3.14%, respectively; the contribution rates of varieties were 68.53%, 60.91%, 82.39%, 0.04%, 63.10% and 69.34%, respectively; the contribution rate of the interaction between ecological regions and varieties were 8.79%, 31.41%, 7.94%, 5.55%, 27.42% and 27.52%, respectively. Yunyan 105 had higher chlorogenic acid, neochlorogenic acid, cryptochlorogenic acid and rutin contents in Dafang ecological tobacco area, while Yunyan 116 had higher scopolamine content in Weining. The polyphenol content of tobacco leaves were significantly positively correlated with the contents of phosphorus, potassium, reducing sugar and total sugar, and was significantly negatively correlated with the content of nicotine. In terms of polyphenols and chemical components of tobacco leaves, the newly introduced flue-cured tobacco varieties Yunyan 105 and Yunyan 116 in Bijie were more suitable for planting in Dafang area, and Yunyan 105 outperforms Yunyan 116.