ABSTRACT.
ROOTING OF GRAPE CUTTINGS. II. FLUCTUATION OF ROOTING CÓFACTORS AND INHIBITORS OF TWO VITIS SPECIES

Iván Muñoz H.1 y Aurelio Villalobos P.2
 
Rootingcofactors and inhibitors incuttings of Sultanina and Dogridge grape cúltivars were estimated using the mungbean bioassay at 5 sampling times. Sultanina showed 3 promotion patterns located at Rf 0.6-0.73; 0.86-0.93 and 1 in everycutting-sampling-time. Dogridge, however, did not show promotion patterns during the last two coIlecting times. Inhibitors were found in cutting extracts of the two cultivars at the Rf 0.13-0.27; 0.33-0.47 and 0;53-0.8. Leaves of iboth cultivars presented the same promoters and inhibitors as shoots.
Keywords:
1Ing. Agr., M. S., Programa Frutales y Viñas, Estación Experimental La Platina, Instituto de Investigaciones Agropecuarias (INIA), Casilla 5427, Santiago, Chile. 2Ing. Agr., Ph. D., Programa Frutales y Viñas, Estación Experimental La Platina, Instituto de Investigaciones Agropecuarias (INIA), Casilla 5427, Santiago, Chile. Actualmente: Departamento de Horticultura, Escuela de Agronomía, Universidad Católica de Valparaíso, Casilla 4, Quillota, Chile.