5个烤烟新品种与云烟87的比较研究

 为筛选出适应丽江地区烤烟种植区优质、适产、抗病性强的新品种，在2009～2010年于丽江市永胜县开展了以云烟87为对照，XYN87，云烟113，云烟114，云烟115，T29共5个新品种的区域试验。进行了生物学性状、抗病性、经济性状等观测分析。结果表明：在5个供试品种中，T29的经济性状最好，产量为3256.35kg/hm2；在抗病性上云烟113最优，白粉病病株率3.75%为最低；从化学成分上看，云烟115与T29的糖碱比分别为10.78和9.31，化学成分最协调。两年的适应性研究结果的主成分分析法综合成分得分T29为1.07674，表现最佳。

The Comparative Test of Five New Flue cured Tobacco Varieties with Yun87

In order to select new varietis of flue cured tobacco which have some good characters such as superior quality, adaptive yield, produce and strong disease resistance to suit in Lijiang, demonstration test was conducted in Yongsheng County, Lijiang. The new varieties of flue cured tobacco included XYN87，Yun113，Yun114，Yun115 and T29, compared with Yun87 by biological characters, disease resistance, economic characters. The results showed that: in these five varieties, economic characters of T29 were preferable, its yield  reached  3256.35kg/ hm2; Yun113 had the strongest disease resistance, its diseased plants rate of tobacco powdery mildew was only 3.75%; sugar nicotine ratios of Yun115, T29 were 10.78 and 9.31.It is proved that  these varieties have more coordinating chemical composition. T29 has the highest principle component score of 1.07674, the best performance among these new varieties in two years study.