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以3个烤烟(Nicotiana tabacum L.)胞质雄性不育系(MsYZ206-9,MsYZ203-6和MsYZ216-1)和4个烤烟品种(红花大金元,云烟87,G80和G28)为材料,配成12个杂种,利用简单加性-显性遗传模型研究总糖、烟碱、总氮、氧化钾、氯、总糖/烟碱、总氮/烟碱和氧化钾/氯等8个烟叶化学品质性状的遗传效应和群体杂种优势表现。结果表明:(1)控制烟叶总糖的主要遗传效应是加性效应,显性效应较低,其杂种优势利用潜力可能较低;控制烟碱、总氮、氧化钾、氯、总糖/烟碱、总氮/烟碱和氧化钾/氯的显性效应较高,这7个化学品质性状的杂种优势利用潜力可能较大;(2)所有杂种总糖存在负向群体平均优势和负向群体超亲优势,其他7个化学品质性状表现为正向、负向群体平均优势和群体超亲优势并存。
Three tobacco (Nicotiana tabacum L.) cytoplasmic male sterile lines (MsYZ206-9, MsYZ203-6 and MsYZ216-1) and four flue-cured tobacco varieties (Dahua Yuan, Yunyan 87, G80 and G28) were used as materials 12 hybrids were used to study the effects of total sugar, nicotine, total nitrogen, potassium oxide, chlorine, total sugar / nicotine, total nitrogen / nicotine and potassium oxide / chlorine on the basis of simple additive- Genetic Effects of Tobacco Chemical Quality Traits and Group Heterosis Performance. The results showed that: (1) The main genetic effects of controlling total sugar content in tobacco were additive effect, lower dominant effect and lower potential for heterosis utilization; controlling nicotine, total nitrogen, potassium oxide, chlorine, total sugar and tobacco Alkalinity, total nitrogen / nicotine and potassium oxide / chlorine showed a higher potential for utilization of heterosis in these seven chemical quality traits. (2) The average heterosis and negative Among the other seven chemical quality traits, the average superiority of the positive and negative groups and the super-parental superiority of the group co-exist.