| 摘要 |
PROBLEM TO BE SOLVED: To provide: tobacco varieties having reduced levels of DVTs (4,8,13-duvatriene-1,3-diols); methods of making such varieties; and tobacco compositions including such varieties.SOLUTION: A cured tobacco is prepared from green tobacco having less than 20 μg of DVT per cmof green leaf tissue. A method for producing a plant variety includes the steps of: crossing first tobacco plants with second tobacco plants to produce progeny plants, wherein the first tobacco plants have less than 20 μg of DVTs per cmof green leaf tissue; allowing the progeny plants to self-pollinate for at least one generation; and selecting, in at least one generation, for reduced levels of DVTs in tobacco relative to tobacco of the variety designated KY14, selecting for less than 20 μg of DVT per cmof green leaf tissue, or selecting for significantly reduced bitterness in a sensory panel evaluation of tobacco from plants of the generation. |
