罗平烤烟新品种的适应性研究

研究了KRK26、云烟100、K326烤烟的生育期指标、植物学性状、农艺性状、抗病性、烤后烟外观质量、烘烤特性和经济性状的差异,结果表明:KRK26的田间长势强、开片好、需肥偏少、低抗黑茎病、感花叶病和白粉病,较难烘烤(烤后枯烟、青烟多),均价较对照略低;云烟100前期长势强,开片好,需肥中等偏少,易感黑茎病和野火病,易烘烤,均价较对照略低。此外,建议采取连续试验示范,以筛选出符合云南罗平气候、土壤条件的烤烟品种。

Adaptability Study of New Flue-cured Tobacco Varieties in Luoping

The growth period indexes,botanical characters,agronomic characters,disease resistance,appearance quality,curing characteristics and economic characters of new flue-cured tobacco varieties KRK26,Yunyan 100 and K326 in Luoping were compared.The results showed that KRK26 had strong field growth potential,good leaf opening,less fertilizer demand,low resistance to black-stem disease,and sensitivity to mosaic virus and powdery mildew,but it was hard to be cured,and its average price was slightly lower than that of the check variety.Yunyan 100 had strong previous field growth vigor,good leaf opening,less-moderate fertilizer demand,and high sensitivity to black-stem disease and wildfire disease,and it was easy to be cured,but its average price was slightly lower than that of the check variety.In addition,it was suggested to screen out flue-cured tobacco new varieties which were suitable for the climate and soil conditions of Luoping through continuous tests and demonstrations.