Patents by Inventor Gayle H. Davidonis

Gayle H. Davidonis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Controlled regeneration of cotton plants from tissue culture
    Patent number: 4672035
    Abstract: The regeneration of plants from cotton callus (Gossypium hirsutum L. cv Coker 310) is described. Somatic proembryoids developed spontaneously after two years in culture on a modified Linsmaier and Skoog medium. The percentage of calli forming proembryoids was increased to about 30% by prolonged culture without NAA and kinetin. Development of proembryoids was enhanced by transferring proembryoids to media lacking NH.sub.4 NO.sub.3 but containing double the standard KNO.sub.3 concentration and gibberellic acid. Root initiation and growth was promoted by lowering the glucose concentration to 5 g/l.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: June 9, 1987
    Assignee: Research Corporation
    Inventors: Gayle H. Davidonis, Ralph O. Mumma, Robert H. Hamilton