Behavior of Red Roomy Grapevines to Cycocel and Some Micronutrients: I. The Effect of Buds Behavior and Growth

Our objectives were to investigate the effect of spraying cycocel at effect of spraying cycocel at 0.0, 500, 1000, or 500 ppm starting immediately after pruning and ending at 30 days after berry set and/or the application of a mixture containing Mn, Zn, Cu, and Fe at 0.3 per each element. Data on buds behavior end growth characteristics (i.e., number of internodes and laterals, leaf area, cane thickness, and weight of pruning) were tabulated. Results showed that three sprays of 1000 ppm cycocel immediately after pruning, 15 days before first bloom, and at 30 days after berry set combined with using the micronutrients together at 0.3% substantially raised burst and fruiting buds and all the studied characteristics, while reducing dormant and vegetative buds. Three sprays of 1000 ppm cycocel plus 0.3% of a mixture containing the four micronutrients caused a positive influence on the behavior of buds and growth aspects of Red Roomy vines.