烤烟新品种中川208的选育及特征特性

烤烟新品种中川208（CF228）是以优质、适产、抗TMV为主攻目标，以MS中烟103为母本，烤烟新品系T136为父本，经杂交选育而成的雄性不育一代杂交种。该品种生长势强，株式塔型，叶形椭圆；综合经济性状显著优于K326，略优于云烟87；外观质量优于K326，略优于或相当于云烟87；烤后烟叶钾离子含量相对较高，化学成分协调；能够彰显区域风格特征，工业可用性较强，在西南烟区清香风格明显，清甜香韵突出；对TMV免疫，中感黑胫病、根结线虫病和PVY，感青枯病、赤星病和CMV。综合评价，中川208是质量性状、经济性状和抗病抗逆性状较能兼顾的烤烟新品种，适应性强，适宜在西南和华中烟区种植。

Breeding and Characterization of a New Flue-cured Tobacco Variety Zhongchuan208

The new flue-cured tobacco variety Zhongchuan208 (CF228) is a male sterile hybrid bred by crossbreeding with MS-Zhongyan103 as the female parent and T136 as the male parent, aiming at high quality, suitable yield and TMV resistance. In the field, Zhongchuan208 grows neatly and uniformly with strong vigor, with tower shape plant type and oval leaf shape. Comprehensive economic traits are significantly better than K326, slightly better than Yunyan87, and the appearance quality is better than K326, slightly better or equivalent to Yunyan87. The overall coordination of chemical components in flue-cured tobacco leaves is good with slightly higher potassium content. It is characterized by regional style, strong industrial usability, clear fragrance style and outstanding sweet fragrance in southwest tobacco areas. It has immunity to TMV, moderate susceptibility to black shank disease, root knot nematode disease and PVY, and is susceptible to bacterial wilt disease, brown spot disease and CMV. In summary, Zhongchuan208 is a new flue-cured tobacco variety with good quality, economic characters and disease resistance, which has strong adaptability and is suitable for planting in southwest and central China tobacco areas.