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ISHS Acta Horticulturae 1157: IX International Symposium on Grapevine Physiology and Biotechnology

Different inductors for rooting vine rootstocks 'Paulsen 1103', 'R-99' and '101-14'

Authors:   A.G. Turmina, A.P.F. Lima, S.C. Uber, L. Rufato, A.R. Rufato, A.F. Fagherazzi
Keywords:   grapevine rootstocks, indolbutyric acid, phloroglucinol, Trichoderma spp., Cyperus rotundus
DOI:   10.17660/ActaHortic.2017.1157.60
Abstract:
In the vine, the rootstock can have substantial influence on vegetative growth, gas exchange and water status in the canopy. The study of alternative methods to induce rooting from natural extracts may contribute to agricultural practices. The grapevine rootstocks used in this experiment were '1103 Paulsen', 'R-99' and '101-14'. The treatments were control, Trichoderma spp. 20,000 mg L-1, Cyperus rotundus extract 10,000 mg L-1, indolbutyric acid 2,000 mg L-1 and phloroglucinol 2,000 mg L-1. The objective of this study was to evaluate the efficiency of different methods for rooting of vine. The variables analysed were percentage of callus, root number, fresh weight and length of roots. There was no interaction between rootstocks and treatments. For the variable number of calluses the rootstock 'R-99' had the highest rooting percentage with 38.66%. The number of roots was higher for the rootstock '101-14' with an average of 22.20 roots per cutting. The root fresh weight of rootstock 'R-99' had lower mass and the length of root was no statistical difference between the rootstocks.

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