不同海拔对马里兰烟五峰1号农艺及经济性状的影响

摘要

Wufeng 1,a new Maryland tobacco variety,was tested in fields with different altitudes to study the effects on growth period,agronomic characters and main chemical components.The results showed that the growth period and maturity delayed,the height was slightly short, stem diameter increased,leaf became narrow,and effective leaves,yield,output value,average price and tobacco proportion with middle-first class presented a decline trend with altitude increase but the reducing sugar and total sugar content increased with altitude increase.The reducing sugar,total sugar and Chl content in tobacco cultivated in the field with an elevation of 1350 m all exceeded the quality Maryland standard. Wufeng 1 should be cultivated in the areas with an elevation of 750~1050 m in Wufeng County,Hubei.%为探索马里兰烟新品种五峰1号在五峰土家族自治县的适宜种植区域，在海拔750～1350 m地区进行不同海拔高度对五峰1号大田生育期、农艺性状、烟叶主要化学成分的影响试验。结果表明：随海拔升高，五峰1号大田生育期变长，成熟期延长，株高稍矮，茎围稍粗，节距稍长，叶片较窄，有效叶片数减少，产量、产值、均价和中上等烟比例均呈下降趋势；还原糖、总糖含量随海拔高度的上升而增加，在海拔1350 m 地区化学成分不协调，还原糖、总糖及氯含量均超出优质马里兰烟指标范围。综合各项指标，马里兰烟新品种五峰1号适宜在五峰土家族自治县海拔750～1050 m 烟区种植。