晒红烟新品种延晒七号的选育及其特征特性

晒红烟新品种延晒七号是以“太兴烟”为母本,“万宝四号”为父本组配杂交,通过系谱法选育的优质杂交后代。2000~2003年进行了品比试验、吉林省区域试验和生产示范,结果表明该品种株式塔型,株高范围134.0~146.0cm,可采叶数范围10~12片,叶形椭圆,叶色正绿,着叶均匀,苗期和田间生长势强、整齐、烟叶成熟较集中;大田生育期为78~79d,抗病性强,适宜种植范围较广。平均产量2449.42kg/hm2,产值18224.51元/hm2,均价7.47元/kg,一、二级烟叶比例41.84%,均高于对照(延晒三号)。原烟颜色棕红色,油分有,结构尚疏松,叶片较薄,外观质量优于或接近于对照。主要化学成分较适宜,烟碱含量明显低于对照。具有明显的晒烟香气,香气质较好,余味尚干净、劲头较小,评吸质量优于或接近对照。

Breeding and Characteristics of Red Sun-cured Tobacco cv. Yanshai 7

The new red sun-cured tobacco cultivar Yanshai 7, a hybrid seed from mother Taixingyan and father Wanbao 4, was bred with a genealogy method. The results of contrast experiments during 2000-2003 showed that Yanshai 7 characterized a tower plant shape with evenly spaced green oval leaves, topped height of 134.0-146.0cm, 10-12 available leaves, vigorous and tidy growth in seedbed and field with a field growing period of 78-79 days, relatively narrow leaf maturation interval, high resistance to diseases and good adaptability. The average yield, output value and price were 2449.42kg/ha, 18224.51RMB yuan/ha and 7.47RMB yuan/kg, respectively; and the percentage of first and second grade leaves was 41.84%, which were higher than those of the contrast cv. Yanshai 3. The cured leaves of Yanshai 7 were reddish brown, oily, and firm structure, whose apparent quality was better than or close to that of the contrast. The main chemical constituents were fairly harmonious, the nicotine content was obviously lower than that in the contrast. With distinct style of sun-cured tobacco, good flavor quality, quite clean aftertaste, and mild strength, the smoking quality of Yanshai 7 was superior or close to the contrast.