POSTER SESSION PAPERS Cold Hardiness Evaluation of Cornus kousa Provenances

摘要

For the past quarter-century one of the primary missions of the Morris Arboretum has been domestic and international plant exploration and introduction. The goals of this plant exploration program are to;Broaden the genetic pool of known species Extend hardiness and increase vigor Broaden adaptability to difficult microclimates Increase insect and disease resistance Conserve rare species Select improved horticultural forms Evaluate and introduce appropriate new species