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| PETRI,JOSÉ LUIZ; COUTO,MARCELO; GABARDO,GENTIL CARNEIRO; FRANCESCATTO,POLIANA; HAWERROTH,FERNANDO JOSÉ. |
| ABSTRACT Carbaryl or the mixture of carbaryl with NAA (naphthalene acetic acid) or BA (benzyladenine) are the post-bloom chemical thinners most widely used in apple thinning in Brazil. The marketing restriction of carbaryl demands new options of apple post-bloom thinners, requiring the evaluation of others compounds for this purpose. Metamitron is one of the substances that may be used in chemical thinning of apples. Metamitron was evaluated at two concentrations, alone or in mixture with BA, in ‘MaxiGala’, ‘Fuji Suprema’ and ‘Fred Hough’ apple cultivars. Applications of metamitron at 384 mg L-1 and at 768 mg L-1 in a mixture with BA, ranging from 40 mg L-1 to 80 mg L-1, sprayed on fruits with diameter ranging from 5 to 25 mm were compared with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant growth regulators; Concentration; Fruit set; Fruit production. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000400705 |
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| GABARDO,GENTIL CARNEIRO; PETRI,JOSÉ LUIZ; HAWERROTH,FERNANDO JOSÉ; COUTO,MARCELO; ARGENTA,LUIZ CARLOS; KRETZSCHMAR,AIKE ANNELIESE. |
| ABSTRACT The aim of this study was to evaluate the efficacy of metamitron or metamitron plus benzyladenine as a post-bloom thinner on ‘Baronesa’ and ‘Fuji’ apples. Three experiments (rate, timing and BA combination) were conducted during two crop seasons, 2013/14 and 2014/15 at the experimental station located in Caçador, SC. Fruit set, fruit drop, yield per tree, fruit size and flowering return were assessed. The efficacy of metamitron was affected by time of application, and when applied at petal fall, promoted the proper adjustment of the production load of plants. Yield per plant reduces, whereas the allocation of fruits in categories of greater size increases proportionally to the increase in the metamitron concentration applied. However, there is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica; Post-bloom thinning; Fruit drop; Return bloom; Fruit quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300701 |
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