论文部分内容阅读
Speight G-80是美国斯佩特种子公司用Speight G-45和 Speight G-28杂交选育而成的。株式筒形,株高110厘米左右,茎围和节距适中,叶数20～22片,腰叶长52～56厘米,腰叶宽22～27厘米,主脉中等,叶形椭圆,叶色与 G-140相近,叶面较平,叶片厚薄适中。移栽至中心花开放60～66天。栽后长势较弱,发苗慢。高抗黑胫病、青枯病和线虫病,气候斑和赤星病较轻,不抗花叶病。产量中等,一般亩产150多公斤,单叶重7克左右,烤后叶色较深,近似桔黄色,油分好,1987年原烟(中黄三级)化学成份分析:还原
The Speight G-80 was bred by Speight G-80 from Speight G-45 and Speight G-28. Plant-shaped, about 110 cm in height, stem circumference and the pitch is moderate, the number of leaves 20 to 22, waist length 52 to 56 cm, waist width 22 to 27 cm, the main vein is medium, leaf-shaped oval, leaf color Similar to the G-140, the leaves are flat and the leaf thickness is moderate. Transplanting to the center flowers open 60 to 66 days. Weak growth after planting, hair seedling slow. High resistance to black shank, bacterial wilt and nematode, mild weathering and brown spot disease, non-resistant mosaic disease. Yield average, the general mu produce more than 150 kilograms, leaf weight about 7 grams, darker color after roasting, similar to orange, good oil, raw tobacco in 1987 (yellow) chemical composition analysis: reduction