%0 Journal Article
%A Chapman, A. P.
%A Hussey, E. E.
%T The Value of Plant Growth Regulators in the Propagation of *Vitis Champini* Rootstocks
%D 1980
%J American Journal of Enology and Viticulture
%P 250-253
%V 31
%N 3
%X Experiments were conducted to determine the value of growth regulator treatments in rootstock rootling and benchgraft production. The difficult-to-root varieties Dog Ridge and Ramsey, derived from Vitis champini, were used. The five treatments and costs of the materials per 1,000 cuttings were as follows: 1) 24-hour soak in dilute Walter's Solution ($8A) (Australian dollars $1A = $1.10 U.S.), 2) 24-hour soak in dilute solution of I.B.A. ($3), 3) Five-second dip in concentrated solution of I.B.A. ($4), 4) Five-second dip in Seradix No. 2 dry powder ($8), and 5) Untreated control ($0). The percentage of Dog Ridge benchgrafts showing root initiation after 21 days for each of the five treatments were 100, 100, 95, 40, and 2.5%, respectively. The rooting of Ramsey hardwood cuttings after 30 days for each of the five treatments were 76, 71, 73, 61 and 33%, respectively. I.B.A. treatment reduced the rooting time by 14 days for difficult-to-root cuttings and benchgrafts. Electricity savings of 25-30% could be achieved as well as a corresponding increase in output for a given propagation facility.
%U https://www.ajevonline.org/content/ajev/31/3/250.full.pdf