烟草科技Issue(3)：19-22,52,5.DOI:10.16135/j.issn1002-0861.20150304
根区温度与氮素形态互作对烟株生物量和烟碱积累的影响
Effects of Temperature and Nitrogen Form Interaction at Root Area on Accumulation of Biomass and Nicotine in Flue-cured Tobacco
摘要
Abstract
In order to reveal the effects of rhizosphere temperature on the nicotine accumulation in flue-cured tobacco, the interaction effects of rhizosphere temperature (10, 18, 26, 35 ℃) and nitrogen form (100% NH4-N, 50% NH4-N+50% NO3--N, 100% NO3--N) on the accumulation of biomass and nicotine in flue-cured tobacco were studied with a pot experiment. The results showed that the biomass in tobacco plants was increased by rising rhizosphere temperature properly; NO3--N was more beneficial to plant growth than NH4-N. At the rhizosphere temperature of 35 ℃, 100% NH4-N and 50% NH4-N+50% NO3--N, the growth of tobacco plants was restrained, while the plants fertilized by 100% NO3--N grew vigorously. Nitrogen form affected the biomass content in tobacco plants more significantly than did rhizosphere temperature. The nicotine accumulation in tobacco plant peaked at the rhizosphere temperature of 18 ℃. The nicotine content in plants fertilized by 100% NO3--N was 1.64 times that by 100%NH4-N, which indicated that NO3--N application promoted the synthesis of nicotine. At the rhizosphere temperature of 35 ℃ , the synthesis of nicotine was restrained. Rhizosphere temperature affected nicotine accumulation more significantly than did nitrogen form.关键词
烟草/根区温度/氮素形态/生物量/烟碱Key words
Flue-cured tobacco/Rhizosphere temperature/Nitrogen form/Biomass/Nicotine分类
农业科技引用本文复制引用
邱尧,周冀衡,黄劭理,李强,张毅,刘晓颖..根区温度与氮素形态互作对烟株生物量和烟碱积累的影响[J].烟草科技,2015,(3):19-22,52,5.基金项目
红云红河烟草(集团)有限责任公司科技项目“云南原料基地单元烤烟品种立体优化布局研究”（HYHH2012YL03）；湖南省研究生科研创新项目“去除顶端优势对烟草生物碱和钾素吸收分配的影响及调控技术研究”（CX2014B289）。 （集团）
