ABSTRACT.
EFFECTS OF G.A. DOSES AND TIME OF APPLICATION ON YIELD AND FRUIT CHARACTERISTICS OF GRAPE CV. MOSCATEL ROSADA

Juan Pedro Sotomayor S.1 y Jorge Valenzuela B.2
 
The effects of time application and doses of G.A. were evaluated in a field trial on Moscatel Rosada grape cultivar at Vicuña (Lat. 30º-02'S) (Long. 70º-44'W). Northern Region of Chile. Four doses: 0 (water) -15 - 25 and 35 ppm were applied at different cluster developmental stages: beginning of bloom, 50% of bloom, 75% of bloom, 3 days after full bloom, and 1 week after full bloom. Results showed that 35 ppm applied at 75% of bloom and 3 days after full bloom were the best for yield, cluster weight and volume, but some spoiling of cluster was observed by lack of adequate bunch loosening.
Keywords:
1Ing. Agr., Programa Frutales y Viñas, Subestación Experimental Cauquenes, Instituto de Investigaciones Agropecuarias (INIA) , Casilla 165, Cauquenes, Maule, Chile. 2Ing. Agr., Ph. D., Programa Frutales y Viñas, Estación Experimental La Platina, Instituto de Investigaciones Agropecuarias (INIA), Casilla 5427, Santiago, Chile.