Efeito do extrato aquoso de Cyperus rotundus L. no enraizamento de estacas lenhosas de Prunus persica L. Batsch var. Vulgaris cv. Chimarrita

Abstract

The objective of this study was to evaluate the rooting capacity of hardwood cuttings of peach with application of shoot and root system aqueous extracts of Cyperus rotundus L. in different concentrations compared with the application of plant growth regulator (Auxin-IAA). The hardwood cuttings were maintained immersed for 24 hours with the following treatments: TAD: control 100% distilled water; PACR25: shoot aqueous extract of C. rotundus 25%; PACR50: shoot aqueous extract of C. rotundus 50%; PACR75: shoot aqueous extract of C. rotundus 75%; SRCR25: root system aqueous extract of C. rotundus 25%; SRCR50: root system aqueous extract of C. rotundus 50%; SRCR75: root system aqueous extract of C. rotundus 75%; IAA500: IAA solution 500 mgL-1; IAA1000: IAA solution 1000 mgL-1; IAA1500: IAA solution 1500 mgL-1. The experiment was conducted in a randomized complete block design with 10 treatments, 4 replicates and seven piles per repetition. The pots were keeping for 90 days in a greenhouse and evaluate the percentage of live cuttings, the rooting percentage, the greater root length and the dry matter of the root system. The results it was possible to conclude that, aqueous aqueous extract of shoot and root system in Cyperus rotundus, does not promote the rooting of hardwood cuttings of peach, compared to growth regulator. The concentration IAA 500 mgL-1 it is the one that promoted higher rooting of hardwood cuttings of peach.