烟草科技2019，Vol.52Issue(2)：25-32,8.
摘除不适用叶与喷施光碳核肥对烤烟上部叶生理代谢及品质的影响
Effects of removing unusable leaf at lower stalk position and spraying carbon dioxide trapping agent on physiological metabolism of upper leaves and quality of flue-cured tobacco
摘要
Abstract
In order to optimize the grading structure of flue-cured tobacco and promote industrial availability of upper leaves, a field experiment was conducted by using Yuyan No.6 to investigate the effects of removing unusable leaf at lower stalk position and spraying carbon dioxide trapping agent on the leaves on photosynthetic characteristics and metabolisms of carbon and nitrogen of upper leaves. In addition, chemical composition and economic traits of flue-cured tobacco leaves were also evaluated. The results showed that compared with the control (without removing lower leaves while topping), the leaf area, chlorophyll content, photosynthesis, metabolisms of carbon and nitrogen and total nitrogen contents of upper leaves, as well as the proportion of mid-to-high grade leaves were significantly increased. This was achieved by removing six lower unusable leaves while topping (Treatment 1), however the yield and output value of flue-cured tobacco leaves were decreased. Compared with Treatment 1, the leaf removing combined with spraying carbon dioxide trapping agent (Treatment 2) significantly increased the single leaf weight, the contents of potassium, total sugar and reducing sugar, total sugar/nicotine ratio, potassium/chlorine ratio, yield and output value of flue-cured tobacco leaves. Compared with the control, the leaf area, single leaf weight, potassium content, the proportion of mid-to-high grade leaves were increased by 11.53% , 23.19% , 12.69% and 17.50% , respectively. In general, Treatment 2 promotes the openness of upper leaves and the harmony of chemical compositions of flue-cured tobacco leaves and economic benefits.关键词
烤烟/不适用叶/光碳核肥/光合性能/碳氮代谢/产量/品质Key words
Flue-cured tobacco/Unusable leaf/Carbon dioxide trapping agent/Photosynthetic characteristic/Metabolism of carbon and nitrogen/Yield/Quality分类
农业科技引用本文复制引用
刘领,李冬,申洪涛,白峰,赵世民..摘除不适用叶与喷施光碳核肥对烤烟上部叶生理代谢及品质的影响[J].烟草科技,2019,52(2):25-32,8.基金项目
国家自然科学基金青年项目"基于核酸适配体- 纳米胶束的荧光多标记生物传感器检测8- 羟基-2'- 脱氧鸟苷"(21507020) （21507020）
国家烟草质量监督检验中心创新项目"烟用纸张大肠菌群、金黄色葡萄球菌、沙门氏菌和霉菌的快速检测方法"(512013CA0120). （512013CA0120）
