Abstract
The objective of this study was to evaluate the effect of aminoethoxyvinilglycine (AVG), sprayed at different doses, on yield components and fruit quality of pear trees, during the growing seasons of 2015/2016 and 2016/2017, in Sao Joaquim, Santa Catarina state, Brazil. Treatments consisted of AVG sprayed one week after full bloom (WAFB) ) at different doses on ‘Santa Maria’ (0 mg L-1, 40 mg L-1, 80 mg L-1, and 120 mg L-1) and ‘Abate Fetel’ (0 mg L-1, 80 mg L-1, and 100 mg L-1) pear trees, arranged in a randomized block design. Yield components and fruit quality attributes were assessed. Fruit set, number of fruit per tree and yield are significantly improved and positively related to AVG dose for both cultivars, while fruit quality attributes and fruit size are not affected by treatments.
Highlights
The objective of this study was to evaluate the effect of aminoethoxyvinilglycine (AVG), sprayed at different doses, on yield components and fruit quality of pear trees, during the growing seasons of 2015/2016 and 2016/2017, in São Joaquim, Santa Catarina state, Brazil
Several studies have reported positive effects mainly of gibberellins (HAWERROTH et al 2011, VERCAMMEN & GOMAND 2008), and thidiazuron (PETRI et al 2001, BIANCHI et al 2000) on pears when applied at full bloom
The higher fruit set induced by these substances is due to a higher rate of induced parthenocarpy (VERCAMMEN & GOMAND 2008, PETRI et al 2001), which often leads to misshapen fruits (BIANCHI et al 2000), which are not desirable
Summary
The objective of this study was to evaluate the effect of aminoethoxyvinilglycine (AVG), sprayed at different doses, on yield components and fruit quality of pear trees, during the growing seasons of 2015/2016 and 2016/2017, in São Joaquim, Santa Catarina state, Brazil. The application of inhibitors of ethylene synthesis, such as AVG might be a potential tool to reduce fruit drop and increase fruit set of pears. The objective of this study was, to evaluate the effect of AVG, sprayed at different doses, on yield components and fruit quality of ‘Santa Maria’ and ‘Abate Fetel’ pears.
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