Garlic and H₂O₂in overcoming dormancy on the vine “Cabernet Sauvignon”

Abstract

Abstract. The objective of this experiment was to evaluate the effect of garlic extract, H 2 O 2 and hydrogen cyanamide on dormancy break, budding and maturation of ''Cabernet Sauvignon'' in the Campaign Region -Brazil. In late winter 2014 and after drought pruning were performed spraying in the bud: T1 -distilled water (control); T2 -3.0% of hydrogen cyanamide; T3 -18.0% H 2 O 2 ; and T4 -3.0% garlic extract. It was evaluated in the field: the number of sprouted buds per plant, number of bunches per plant and weight of bunches per plant; and laboratory: on ripening, performed weekly from the color change of 360 berries per treatment for analyzes solids soluble -SS (Brix) pH and titratable acidity -TA (% tartaric acid). It was observed that the vines of treatment T4 (3.0% garlic extract), showed higher percentage of buds sprouting (63 shoots plant -1 ). Already at the number of clusters and weight per plant, there were no statistical differences between all treatments. The results obtained in the laboratory to SS, pH and TA did not differ statistically for the four tested treatments.

Defoliation in ‘Pinotage’ during the harvests 2014/15 and 2015/16 in Dom Pedrito-RS

“…The design used was randomized blocks with four replications and 20 plants per plot. The results were submitted to analysis of variance (ANOVA) and the averages were compared by the comparison test averages of Tukey at 5% probability [4][5][6].…”

Fertilizer of bovine and ovine origin in ‘Merlot’ vines in Dom Pedrito-RS

“…As is known, the cultivation of the vine was easily adapted in the Campanha Gaucha [2], but for an excellent crop in this region, as in other productive areas, many agrochemicals are used, from fertilization to phytosanitary treatments, which, over the time, can lead to toxicity to soil, water and plants. Thus, the organic fertilizer is a way to reduce the use of agrochemicals, improving soil structure, and is an alternative to reduce costs.…”