Harlene M. HattermanDepartment of Horticulture, University of Nebraska, Lincoln, NE 68583-0724
Search for other papers by Harlene M. Hatterman in Google ScholarClose
Received for publication 10 Mar. 1986. Nebraska Agricultural Research Divison Journal Series no. 8021. This research was funded in part by grants from the Gloeckner Foundation and the Dean's Initiation and Innovation Fund. The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be hereby marked advertisement solely to indicate this fact.