PowerPoint Presentation - The American Chestnut Foundation’s Breeding Program

Selection for Recurrent Type

•Trichome density and type

•Stipule size and shape

•Leaf shape

•Tooth shape

•Lenticel density, size and color

•Stem color

•Form

•Time of leaf emergence

•Vigor

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Each backcross generation will vary in the remaining proportion of Chinese heritage. By picking trees with the fewest Chinese traits (except blight resistance), we accelerate the recovery of American type. At the present time, this selection is done using the following morphological traits:

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