Physiological Comparison of Pure American and American-Chinese Chestnut Hybrids
American chestnut (Castanea dentata), once a dominant canopy species in eastern North America, succumbed to invasive pathogens in the early 20th century. The American Chestnut Foundation attempts to breed pathogen resistance using backcrossed hybrids with Chinese chestnut (Castanea mollissima ). We compared steady-state photosynthetic characteristics among backcrossed chestnut hybrids (BC1F1 with 3/4 American genotype and […]