Fruit set and yield of ‘Santa Maria’ and ‘Abate Fetel’ pears are increased by early spring application of aminoethoxyvinilglycine (AVG)
DOI:
https://doi.org/10.5965/223811711642017487Keywords:
Pyrus communis, plant growth regulators, pyrus, fruit, efficiencyAbstract
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. 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.
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BIANCHI VJ et al. 2000. Aumento da frutificação efetiva de pereiras cultivar Garber com uso de AG3 e TDZ. Revista Brasileira de Agrociência 6: 191-193.
CRISOSTO CH et al. 1986. Effect of ethylene inhibitors on fruit set, ovule longevity, and polyamine levels in ‘Comice’ pear. Acta Horticulturae 179: 229-236.
DECKERS T & SCHOOFS H. 2002. Improvement of fruit set on young pear trees cultivar Conference with gibberellins. Acta Horticulturae 596: 735–743.
DUSSI MC et al. 2002. Effects of Retain™ on Fruit Maturity and Fruit Set of Pear Cultivars Williams and Packham’s Triumph. Acta Horticulturae 596: 767-771.
EINHORN TC et al. 2013. Promotion and management of pear fruiting. Good Fruit Grower 64: 42-43.
FERREIRA EB et al. 2013. ExpDes: experimental designs package. R Package Version 1.1.2.
GREENE DW. 1980. Effect of silver nitrate, aminoethoxyvinylglycine and gibberellins A 4+7 plus 6-benzylaminopurine on fruit set and development of ‘Delicious’ apples. Journal of the American Society for Horticultural Science 105: 717-720.
HAWERROTH FJ et al. 2011. Aumento da produção de pereira asiática pelo uso de fitorreguladores. Ciência Rural 41: 1750-1754.
JACKSON JE. 2003. Biology of apples and pears. Cambridge: Cambridge University Press. 488p.
PASA MS et al. 2015. Performance of ‘Rocha’ and ‘Santa Maria’ pears as affected by planting density. Pesquisa Agropecuária Brasileira 50: 126-131.
PETRI JL et al. 2001. Efeito do thidiazuron (TDZ) na frutificação de fruteiras de clima temperado. Revista Brasileira de Fruticultura 23: 513-517.
R CORE TEAM. 2014. R: A language and environment for statistical computing. R Foundation for Statistical Computing. Vienna, Austria.
ROBINSON TL. 2011. High density pear production with Pyrus communis rootstocks. Acta Horticulturae 909: 259-270.
SÁNCHEZ E et al. 2011. Effect of AVG Application on Fruit Set, Yield and Fruit Size in ‘Abate Fetel’ and ‘Packam’s Triumph’ Pears in a Semi-Commercial Statistical Trial. Acta Horticulturae 909: 435-440.
SANTOS HG et al. 2013. Sistema brasileiro de classificação de solos. 3.ed. rev. e ampl. Brasília: Embrapa. 353p.
SANZOL J & HERRERO M. 2001. The “effective pollination period” in fruit trees. Scientia Horticulturae 90: 1-17.
VERCAMMEN J & GOMAND A. 2008. Fruit set of ‘Conference’: a small dose of gibberellins or Regalis. Acta Horticulturae 800: 131-138.
WEBSTER AD. 2002. Factors influencing the flowering, fruit set and fruit growth of European pears. Acta Horticulturae 596: 699-709.
YANG SF & HOFFMAN NE. 1984. Ethylene biosynthesis and its regulation in higher plants. Annual Review of Plant Physiology 35: 155–189.
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