by Rippy, J.F.M, Nelson, P.V, Bilderback, T.E, Swallow, Wm. H, Hesterberg, D.L, Kamprath, E.J, Jahn, David
Published in Acta horticulturae (2008)

by Rippy, J.F.M, Nelson, P.V
Published in HortScience (01.04.2007)

by Rippy, J.F.M, Peet, M.M, Louws, F.J, Nelson, P.V, Orr, D.B, Sorensen, K.A
Published in HortScience (01.04.2004)

by Rippy, J.F.M, Nelson, P.V, Hesterberg, D.L, Kamprath, E.J
Published in Communications in soil science and plant analysis (01.07.2007)

by Rippy, J.F.M, Nelson, P.V
Published in HortScience (01.02.2005)