by Bretting, P.K
Published in Acta horticulturae (01.01.2007)

by Bretting, P.K., Duvick, D.N.
Published in Advances in Agronomy (1997)

by Bretting P.K, Goodman M.M
Published in IBPGR Training Courses: Lecture Series (IBPGR). no. 2 (1989)

by Berry, J, Bretting, P.K, Nabhan, G.P, Weber, C
Published in Journal of arid environments (01.06.1981)

by Cronn, R, Brothers, M, Klier, K, Bretting, P.K, Wendel, J.F
Published in Theoretical and applied genetics (01.09.1997)

by BRETTING, P. K, WIDRLECHNER, M. P
Published in HortScience (01.12.1995)

by Bretting P.K
Published in Economic botany (1986)

by Clark, R.L. (USDA, ARS, Plant Germplasm Introduction and Testing Unit, Pullman, WA.), Shands, H.L, Bretting, P.K, Eberhart, S.A
Published in Crop science (01.01.1997)

by Bretting P.K
Published in American journal of botany (1982)

by Bretting, P.K. (Purdue University, Lafayette, IN)
Published in Economic botany (01.07.1990)

by Bretting, P.K
Published in The Southwestern naturalist (28.08.1985)

by Bretting P.K
Published in The Southwestern naturalist (09.12.1983)

by Bretting, P.K, Goodman, M.M, Stuber, C.W
Published in American journal of botany (01.11.1987)