烤烟自育种质GDH88化学品质特征研究

以烤烟自育种质GDH88以及烤烟品种K326、K730、G70、G140和云85等13个品种(系)为材料,通过测定烟碱、蛋白质等7种化学成分的含量,研究了GDH88的化学品质特征。结果表明,GDH88的烟碱含量(2.2807%)、糖碱比(8.970)、氮碱比(0.9312)、施木克值(1.8924)与理想品种的关联系数最大,说明在13个品种(系)中GDH88总体化学成分含量最适宜。与4个亲本的关联度分析则说明GDH88化学成分优质基因最主要来自于亲本K326。烤烟自育种质GDH88的化学品质特征表现突出、协调性较好,在烤烟品质育种中有很好的应用潜力。

Study on the chemical quality characteristics of self-breeding tobacco germplasm GDH88

Chemical component of main cultivar flue-cured tobacco was carried out among K326,K730,G70,G140,Yun85 and self-breeding germplasm GDH88.The results showed that the content of nicotine in GDH88 was 2.2807%,sugar alkali 8.970,nitrogen alkali 0.9312,schmuck number 1.8924.The reserch indicated that among 13 varieties,the chemical component of GDH88 was the most appropriate.Through analyzing the correlation of the four parents,we found that the high-quality gene of GDH88 was mainly come from the parent K326.The results from the research on the self-breeding tobacco germplasm GDH88 showed it had good coordination and quality.The GDH88 had great potential for application in flue-cured tobacco breeding.