Chemical thinning on Delicious apples in the Stanthorpe district, QueenslandExport / Share Dodd, B.C. (1965) Chemical thinning on Delicious apples in the Stanthorpe district, Queensland. Queensland Journal of Agricultural and Animal Sciences, 22 (2). pp. 193-203.
AbstractThinning trials with the Delicious variety of apple at Stanthorpe were conducted from 1960 to 1963, using naphthalene acetic acid (NAA), naphthalene acetamide (NAD) and 1 naphthyl N methyl carbamate (carbaryl). NAA gave variable results and sometimes severely overthinned the trees. NAD proved a more consistent thinner but treated trees retained an excessively large number of small, non-commercial fruit. Carbaryl was the best of the three materials under trial. It partially corrected the biennial bearing habit of the trees and increased yields over a two-year period.
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