Revista de la Facultad de Agronomía
de la Universidad del Zulia

Maracaibo, may-june de 2000. Vol. 17, No. 3.

Crop production.

Contaminating fungi in the in vitro establishment of nodal segments of Psidium guajava L.
M. del C. Ramírez Villalobos, R. A. Santos P. y F. R. Isea L

Leaves border necrosis and growth delay in sugarcane (Saccharum sp. hybrid) planted the lower Yaracuy area, Venezuela
J. Hernández, L. Zérega y A. Ordosgoitti

Nutrient concentration during the stages of growth of sorghum as a response to nitrogen and phosphorus fertilization in Guarico state, Venezuela
F. Quintero y E. Casanova

Effect of recovery treatments on pepper plants exposed to low temperatures
J. A. Rodríguez Rey, E. R. Romero, M.E. Amado, S. Gianfrancisco, S. del C. David.

Alterations produced by the eudesmanolide-1b-hydroxialantolactone isolated of Dinoseris salicifolia Griseb. on the germination and seedlings of saetilla (Bidens pilosa L.)
A. Pastoriza, S. Gianfrancisco, E. Riscala.

Tests of mechanical transmission with Sorghum yellow banding virus (SYBV) 
M. J. Garrido y G. E. Trujillo

Animal production.

Results of applying different food supplyng levels to calves type "criollo limonero"
J. Bravo e I. Bracho

Preliminary studies on the influence of boron on forage quality of the pasture legume Desmodium ovalifolium
A. Schmidt, B. Heider and R. Schultze-Kraft