N. H. LoomisAgricultural Research Service, U.S. Department of Agriculture, Fresno, CA 93727
Search for other papers by N. H. Loomis in Google ScholarClose
and
J. H. Weinberger
J. H. WeinbergerAgricultural Research Service, U.S. Department of Agriculture, Fresno, CA 93727
Search for other papers by J. H. Weinberger in Google ScholarClose
Contributor Notes
Received for publication March 15, 1978.
The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper must therefore be hereby marked advertisement solely to indicate this fact.