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白肋烟和烤烟(Nicotiana tabacum L.)生产在氮肥施用(Miner and Sims.1983)及调制方法(Chaplin,1976)两个方面都不相同,而这两个烟型的产量水平则相似(USDA,1985)。因为烤烟栽培品种需要的N肥几乎只是白肋烟的四分之一,所以,这可能意味着烤烟具有较高的N素利用率(Moll等,1982)。这两个烟型的主要差异是由两个位点的遗传因
The production of burley and flue-cured tobacco (Nicotiana tabacum L.) is different in both nitrogen application (Miner and Sims. 1983) and the modulation method (Chaplin, 1976), while the yields of the two tobacco types are similar (USDA , 1985). Because the N fertilizer required for flue-cured tobacco cultivars is almost a quarter of that of burley tobacco, this may imply higher N utilization of flue-cured tobacco (Moll et al., 1982). The main difference between these two cigarette types is the genetic cause of two loci