Paternal inheritance of plastid genome was confirmed by PCR-sequencing in the interspecific cross between Actinidia arguta and A. deliciosa. Both coding region and spacer region in the plastid DNA were PCR amplified, restriction digested, or sequenced. PC
Epicotyl grafting in one of the most efficient propagation methods for walnut trees. We have analyzed the scion factors that may influence the survival rate of the grafts. The optimum time for the collection of scions was turned out to be between January