RESPONSES OF MOSCATEL ROSADA GRAPE BUNCH TO DOSES OF GIBERELLIC ACID
|Juan Pedro Sotomayor S.1 y Jorge Valenzuela B.2|
Four doses: O (water) - 15 - 25 and 35 ppm G. A. were applied to M. Rosada bunches when they reached 75% bloom at the Vicuña Experiment Substation vineyards, Northern Chile.
At harvest results showed that 35 ppm G. A. produced the largest bunch, rachis and berry weight. G. A. doses increased the length of the rachis and length/width ratio over the O (water) treatment. G. A. also increased the percentage of berries size 1 and 2, and reduced the percentage of berries size 3. The larger percentage of berries size 2 affected the total berry weight.
|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.