马里兰烟新品种五峰1号的选育及特征特性

[目的]为马里兰烟新品种五峰1号的推广种植提供科学依据。[方法]五峰1号是利用马里兰烟609(Md609)系统选育的马里兰烟新品种,介绍其选育经过,分析其特征特性。[结果]该品种株式筒形,株高较高,叶片长椭圆形,有效叶较多,大田生育期适中;生长势强,产量适宜,产值较高;抗黑胫病和根黑腐病,中抗赤星病,易感花叶病毒病、空茎病,较耐旱,适应范围较广。原烟叶片结构疏松,身份适中,颜色红黄,光泽明亮,外观质量好。总糖、还原糖含量低,总氮、烟碱含量适宜,钾含量高,氯离子含量低,化学成分协调,香型风格显著,香气质好,香气量较足,燃烧性强,工业利用价值高。[结论]五峰1号综合性状表现优良,适宜在湖北宜昌地区种植。

Breeding and Selection of Maryland Tobacco Variety Wufeng No.1 and Its Characteristics

[Objective] The purpose was to provide a scientific basis for popularization and cultivation of Maryland tobacco Wufeng No.1.[Method] Maryland tobacco Wufeng No.1 was a new variety bred from Maryland 609(Md609) system,its breeding process and characteristics were introduced and analyzed.[Result] This variety has characteristics of strong growth vigor,cylinder type,long elliptic blade,higher plant height,more effective leaf number and moderate field development stages.It also has a appropriate single output and high value.Moreover,this variety has a broader adaptation with a drought tolerance,can resist to black shank,black root rot,brown spot moderately and easy infected by mosaic virus disease,empty stem diseases.Raw tobacco leaf has a loose structure,moderate identity,red yellow color,shiny bright and good appearance quality.Raw tobacco leaf’s chemical composition is coordinate,has a high total sugar and reducing sugar,appropriate total nitrogen and nicotine,high potassium with a low chloride ion.This tobacco has a large amount of aromas with a good quality and significant aromas types,coupled with strong flammability.The characteristics of this tobacco described above lead to a high industrial value.[Conclusion] Wufeng No.1’s comprehensive characteristics is good,and suitable for planting in Yichang Area,Hubei.