【摘要】 通过盆栽试验,研究了丙二酸对烤烟氮代谢和烟碱含量的影响。结果表明,在烤烟打顶后喷施25～50mmol/L的丙二酸能明显降低硝酸还原酶活性,减少叶片中NO3-N的还原,使烤烟中的烟碱含量降低0.4744～1.3246个百分点。更多还原

【Abstract】 Effect of malonate on the nitrogen metabolism and nicotine content of flue-cured tobacco was studied through pot experiment.The results showed that spraying25-50mmol/L malonate after topping could de-crease nitrate reductase activity and the reducing of NO 3 -N,and make nicotine content decrease by0.4744-1.3246percents.更多还原