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为了研究施加微量元素锌对烟草(Nicotiana tabacum)总氮、烟碱、硝态氮以及可溶性蛋白质积累的影响,以‘豫烟10号’为供试材料,在大田试验中设置两个处理,分别为T1(施加锌元素)和T2(对照),测定烟草大田各个生育期杀青样总氮、烟碱、硝态氮及可溶性蛋白质含量并进行分析。结果表明,在移栽后45~75 d内施锌能显著降低烟草叶片中的烟碱含量,并推迟烟草烟碱的积累高峰;在移栽后30和60~75 d内施锌能显著提高烟草叶片中的总氮含量,但对烟草总氮积累强度影响不大;施锌对烟草硝态氮的积累有明显促进作用,而对可溶性蛋白质含量的影响不显著。本试验为研究施加微量元素锌对烟草含氮化合物的积累提供了依据。
In order to study the effect of applying trace element zinc on the accumulation of total nitrogen, nicotine, nitrate nitrogen and soluble protein in tobacco (Nicotiana tabacum), Yufu 10 was used as the experimental material and two treatments were set up in the field experiment The contents of total nitrogen, nicotine, nitrate nitrogen and soluble protein were determined and analyzed for T1 (applying zinc element) and T2 (control) in each growth stage of tobacco field. The results showed that applying Zn within 45 ~ 75 days after transplanting significantly reduced the nicotine content in tobacco leaves and postponed the peak of accumulation of nicotine in tobacco leaves. Zinc application increased significantly within 30 and 60 ~ 75 d after transplanting The total nitrogen content in tobacco leaves, but had little effect on the total nitrogen accumulation intensity of tobacco; zinc application significantly promoted the accumulation of nitrate nitrogen in tobacco, but had no significant effect on soluble protein content. This experiment provides a basis for the study of applying trace element zinc to the accumulation of nitrogen compounds in tobacco.