Efficiency of fruitlet thinning in ‘Granny Smith’ apples by use of metamitron
Abstract
In this paper the results of chemical fruit thinning in the apple cultivar ‘Granny Smith’ carried out with the herbicide Brevis® containing 150 g kg-1 of metamitron as the active ingredient are reported. In two treatments, the effect of this compound was enhanced by NAA (1-naphthaleneacetic acid). This study was conducted in a commercial apple orchard of PIK “Južni Banat” located in Bela Crkva (Serbia), in two consecutive years (2013, 2014). The planting distance was 3.3×0.8 m (3878 trees ha-1) and trees were trained as slender spindle. Brevis® was sprayed when central fruits in the clusters were 12-14 mm in diameter. Applied treatments in ‘Granny Smith’ were as follows: control, 150, 188, 225, 150 mg L-1 of metamitron + 5 mg L-1 NAA and 225 mg L-1 metamitron + 5 mg L-1 NAA. Spraying volume was 800 L ha-1 in all applied treatments. Metamitron expressed a positive influence on crop load in both investigated years. Treatments containing metamitron alone provided large yield consisting of... a high percentage of first quality fruit. The effect of metamitron could be enhanced by mixing with NAA.
Keywords:
Brevis / Chemical thinning / Fruit quality / YieldSource:
Acta Horticulturae, 2018, 1228, 439-443Publisher:
- International Society for Horticultural Science
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Radivojević, D. AU - Milivojević, Jasminka AU - Oparnica, Čedo AU - Zabrkić, G. PY - 2018 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4804 AB - In this paper the results of chemical fruit thinning in the apple cultivar ‘Granny Smith’ carried out with the herbicide Brevis® containing 150 g kg-1 of metamitron as the active ingredient are reported. In two treatments, the effect of this compound was enhanced by NAA (1-naphthaleneacetic acid). This study was conducted in a commercial apple orchard of PIK “Južni Banat” located in Bela Crkva (Serbia), in two consecutive years (2013, 2014). The planting distance was 3.3×0.8 m (3878 trees ha-1) and trees were trained as slender spindle. Brevis® was sprayed when central fruits in the clusters were 12-14 mm in diameter. Applied treatments in ‘Granny Smith’ were as follows: control, 150, 188, 225, 150 mg L-1 of metamitron + 5 mg L-1 NAA and 225 mg L-1 metamitron + 5 mg L-1 NAA. Spraying volume was 800 L ha-1 in all applied treatments. Metamitron expressed a positive influence on crop load in both investigated years. Treatments containing metamitron alone provided large yield consisting of a high percentage of first quality fruit. The effect of metamitron could be enhanced by mixing with NAA. PB - International Society for Horticultural Science T2 - Acta Horticulturae T1 - Efficiency of fruitlet thinning in ‘Granny Smith’ apples by use of metamitron EP - 443 SP - 439 VL - 1228 DO - 10.17660/ActaHortic.2018.1228.65 ER -
@article{ author = "Radivojević, D. and Milivojević, Jasminka and Oparnica, Čedo and Zabrkić, G.", year = "2018", abstract = "In this paper the results of chemical fruit thinning in the apple cultivar ‘Granny Smith’ carried out with the herbicide Brevis® containing 150 g kg-1 of metamitron as the active ingredient are reported. In two treatments, the effect of this compound was enhanced by NAA (1-naphthaleneacetic acid). This study was conducted in a commercial apple orchard of PIK “Južni Banat” located in Bela Crkva (Serbia), in two consecutive years (2013, 2014). The planting distance was 3.3×0.8 m (3878 trees ha-1) and trees were trained as slender spindle. Brevis® was sprayed when central fruits in the clusters were 12-14 mm in diameter. Applied treatments in ‘Granny Smith’ were as follows: control, 150, 188, 225, 150 mg L-1 of metamitron + 5 mg L-1 NAA and 225 mg L-1 metamitron + 5 mg L-1 NAA. Spraying volume was 800 L ha-1 in all applied treatments. Metamitron expressed a positive influence on crop load in both investigated years. Treatments containing metamitron alone provided large yield consisting of a high percentage of first quality fruit. The effect of metamitron could be enhanced by mixing with NAA.", publisher = "International Society for Horticultural Science", journal = "Acta Horticulturae", title = "Efficiency of fruitlet thinning in ‘Granny Smith’ apples by use of metamitron", pages = "443-439", volume = "1228", doi = "10.17660/ActaHortic.2018.1228.65" }
Radivojević, D., Milivojević, J., Oparnica, Č.,& Zabrkić, G.. (2018). Efficiency of fruitlet thinning in ‘Granny Smith’ apples by use of metamitron. in Acta Horticulturae International Society for Horticultural Science., 1228, 439-443. https://doi.org/10.17660/ActaHortic.2018.1228.65
Radivojević D, Milivojević J, Oparnica Č, Zabrkić G. Efficiency of fruitlet thinning in ‘Granny Smith’ apples by use of metamitron. in Acta Horticulturae. 2018;1228:439-443. doi:10.17660/ActaHortic.2018.1228.65 .
Radivojević, D., Milivojević, Jasminka, Oparnica, Čedo, Zabrkić, G., "Efficiency of fruitlet thinning in ‘Granny Smith’ apples by use of metamitron" in Acta Horticulturae, 1228 (2018):439-443, https://doi.org/10.17660/ActaHortic.2018.1228.65 . .