From the Editors. 391
Larkin, P.J. Somaclonal variation: history, method, and meaning. 393
Beversdorf, W.D. and L.S. Kott. An in vitro mutagenesis/selection system for Brassica napus. 435
Hanson, M.H., M.A. O'Connell, and C. Vidair. Regeneration of calli and plants following protoplast fusion in Lucopersicon.
Bagley, P.C. and N.L. Taylor. Evaluation of phosphorus efficiency in somaclones of red clover. 459
Orton, T.J. Genetic instability in celery tissue and cell cultures. 481
Book Review. 501
"Iowa State Journal of Research 61.4,"
Iowa State Journal of Research: Vol. 61
, Article 1.
Available at: https://lib.dr.iastate.edu/iowastatejournalofresearch/vol61/iss4/1