F. H. Ortiz

Competition of pigweed (Amaranthus dubius) with sweetpotato (Ipomoea batatas)

Lii-Chyuaan Liu, N. Semidey, F. H. Ortiz, 1987 .

Incorporating resistance to Xanthomonas campestris pv, phaseoli into bean using the latent period as a resistance marker

M. Zapata, G. Freytag, F. H. Ortiz, 1991 .

Determinate pigeon pea [Cajanus cajan (L) Millsp] genotypes on the north and south coasts of Puerto Rico

F. H. Ortiz, Abad Morales, B. Luciano, 1988 .