Vol. 53 No. 4 (1969): Vol. 53, No. 4, October 1969

Vol. 53 No. 4 (1969)

Published October 1, 1969
https://doi.org/10.46429/jaupr.v53i4
Vol. 53, No. 4, October 1969

Articles

Teh-ling Chu, J. L. Serapión
221-229
Effect of Certain Climatic Factors on Flowering of Sugarcane at Gurabo, Puerto Rico
PDF
Alex G. Alexander, Rafael Montalvo-Zapata
230-250
Enzyme Studies of Sucrose Decline in Sugarcane Desiccated with Paraquat
PDF
Rubén Caro Costas, José Vicente-Chandler
251-258
Milk Production with All-Grass Rations from Steep, Intensively Managed Tropical Pastures
PDF
José Vicente-Chandler, Servando Silva, Fernando Abruña
259-267
A New Low-Cost Method of Harvesting Coffee in High-Yielding Plantations
PDF
Servando Silva, José Vicente-Chandler, Fernando Abruña
268-273
Field Losses of Coffee and Improved Harvesting Methods for Intensively Managed Plantations
PDF
F. Sánchez Nieva, I. Hernández, C. Bueso de Viñas
274-283
Ripening of Montecristo Bananas
PDF
F. Sánchez Nieva, G. Colom Covas, I. Hernández, C. Bueso de Viñas, R. Guadalupe
284-306
Studies on the Production of the Montecristo Banana Grown on the South Coast of Puerto Rico
PDF
F. Sánchez Nieva, G. Colom Covas, I. Hernández, R. Guadalupe, C. Bueso de Viñas, A. Torres
307-328
Studies on the Production of the Montecristo Banana Grown on the Adjuntas Region of Puerto Rico
PDF
G. Rosado-Carbó, C. M. Berrocal, J. D. Rivera-Anaya, L. A. Lefebre, I. Carlo
329-337
The Effect of Estrogen in the Elimination of Sexual Odor And on Growth and Carcass Characteristics in Boars
PDF
David J. van Rest
338-347
Evaluation of A Portable Brush-Cutter for Harvesting Sugarcane
PDF
Julián Roldán Regús
348-356
Cobalt and Copper Contents of Some Tropical Soils and Grasses from Puerto Rico
PDF
E. Hernández-Medina
357-368
Further Evidence on the Need of Magnesium for Pineapple in Oxisols
PDF
M. A. Lugo-López, Raúl Pérez-Escolar
369-373
Attempts to Explain the Variability in the Cation-Exchange Capacity of Soils in Terms of Particle Size and Organic-Matter Levels
PDF

Research Notes

D. J. van Rest
374-375
RAPID DRYING OF PARCHMENT COFFEE IN UNSTIRRED BINS
PDF