Iowa State Journal of Research



From the Editors. 205

Isely, D. Classification of alfalfa (Medicago sativa L.) and relatives. 207

Snyder, R.L., R.E. Carlson, and R.H. Shaw. Leaf-water potential-yield relationships in soybeans. 221

Schmitt, D.N. and W.A. Hubert. Growth and condition factors of yellow perch in the Okoboji Lakes, Iowa. 233

Murphy, J.P., L.D. Robertson, and K.J. Frey. Double cropping of soybeans and corn with spring-sown oats. 245

Snyder, R.L., R.E. Carlson, and R.H. Shaw. Response of soybean to foliar fertilization and drought stress. 259

Jarvis, J.L., W.D. Guthrie, and W.B. Showers. Diapause characteristics of European corn borer cultures reared on a meridic diet for many generations. 269

Atkins, R.E., W.D. Guthrie, W.M. Moss, and S. D. Kindler. Investigations of host-plant resistance to the European corn borer in sorghum.

Gill, K.S. and D.F. Anderson. Education and teaching career characteristics of men's and women's interscholastic basketball coaches in Iowa. 293

Wolanksy, W.. and L.-Z. Lin. An assessment of the telelecture delivery for extension instruction: A case study. 301

Keith, P.M., R.D. Warren, and V.S. Lagomarcino. Predictors of general and specific evaluations of education by the public. 313

Lacasa, J.N. and J. Lacasa. Student-perceived uses of foreign languages: French, German, and Spanish. 327