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Monda de frutos em macieira Fuji com matamitrão, ácido 1-naftilacético e 6-benziladenina
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Resumo(s)
The effectiveness of 6-benzyladenine (6-BA, 150 mg/L), 1-naphthaleneacetic acid + 6-
benzyladenine (ANA 10 mg/L + 6-BA 100 mg/L) and metamitron (165; 165+165; 247.5 mg/L)
were analyzed in 6 years old apple ‘Fuji’ grafted on M7, considering simple, double or
combined applications. Production per hectare, average fruit weight and commercial fruit
production were not significantly different between the different methods however, there were
significant differences between these treatments when considering the highest fruit size
class. All the chemical thinning methods led to a reduction in the total number of fruits/BSA
(cm2) and in the average number of fruits/100 fruit clusters. The methods ANA+6-BA and
metamitron at 247.5 mg/L showed highest efficiency and metamitron at 247.5 mg/L resulted
in the best global results: average fruit weight of 175.6 g and average diameter of 77 mm.
The lower efficiency of 6-BA at 150 mg/L was due probably to adverse weather conditions
that occurred 2-3 days after the product application. Chemical thinning is more favorable
than manual thinning due to excessive cost of the second and to the lack of available labour.
Descrição
Mestrado em Engenharia Agronómica - Horticultura e Viticultura - Instituto Superior de Agronomia
Palavras-chave
apple Fuji matamitron 6-benzyladenine 1-naphthaleneacetic acid fruit chemical thinning
Contexto Educativo
Citação
Leal, L.M.T. - Monda de frutos em macieira Fuji com matamitrão, ácido 1-naftilacético e 6-benziladenina. Lisboa: ISA, 2012, 58 p.