Abstract
Looking for improving ‘Leticia’ Japanese plums fruit quality and size, thinning offlowers and fruits have to be done early in the spring. Although, there are very fewstudies showing the effectiveness of chemical compounds that effectively promotethinning of stone fruits, especially for the Southern Brazilian conditions. Thus, theobjective of this study was to investigate the effectiveness of several agents withpotential to promote thinning at blooming or post blooming in ‘Leticia’ Japaneseplums. To do so, in the cropping season of 2014/2015 the treatments abscisic acid,benzyladenine, benzyladenine + gibberellic acid4+7, ethephon, metamitron, vegetaloil, and calcium chloride were sprayed in ‘Leticia’ plums looking for evaluating theeffects on the fruit set. The treatments ABA, benzyladenine, metamitron,benzyladenine + gibberellic acid4+7, calcium chloride, and vegetal oil are effective toreduce fruit set of ‘Leticia’ plums in Southern Brazil.
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