烤烟新品种贵烟5号的选育及特征特性

烤烟新品种贵烟5号是以自育品系2009-203(PVH06×NC729)为母本,南江3号为父本杂交,经系谱法选育而成,2020年通过全国烟草品种审定委员会审定。该品种遗传性状稳定,田间长势较强,易烘烤;抗黑胫病,中抗青枯病和根结线虫病;经济性状、外观质量、物理性状优于对照K326;感官质量与对照K326相当;并具有烤后烟叶钾含量高(中部烟叶比云烟87高29.95%)、含梗率低(中部烟叶比云烟87低10.55%)的显著优点。贵烟5号适宜在西南、华中烟区种植,是一个工业利用价值和农业生产效益兼顾的优良新品种。

Breeding and Characteristics of a New Flue-cured Tobacco Variety Guiyan5

Guiyan5,a new flue-cured tobacco variety,was bred by systematic selection with 2009-203(PVH06×NC729) as female parent and Nanjiang 3 as male parent,and was approved by the National Tobacco Variety Approval Committee in 2020.Its genetic traits were stable.Plants grew vigorously in the field and leaves were easy for flue-curing.Guiyan5 was highly resistant to black shank and moderately resistant to tobacco bacterial wilt and root knot nematode.The comprehensive economic characters,appearance quality and physical properties were better than those of control K326;The sensory and comprehensive quality was similar to that of K326, with the characteristics of high potassium content and low stem ratio.In conclusion,Guiyan5 was a new superior variety,which had both industrial application value and agricultural efficiency.