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| 18. |  | PETRI, J. L.; HAWERROTH, F. J.; LEITE, G. B. Maturação, qualidade e queda pré-colheita de maçãs Imperial Gala em função da aplicação de aminoetoxivinilglicina. Bragantia, São Paulo, v. 69, n. 3, p. 599-608, 2010. ISSN, 0006-8705| Biblioteca(s): Epagri-Sede. |
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| 19. | | HAWERROTH, M. C.; KVITSCHAL, M. V.; HAWERROTH, F. J. Pesquisadores brasileiros visitam a E. E. de Agricultura de New York - Universidade de Cornell, EUA. Jornal da Fruta, Lages, SC, v. 25, n. 308, p. 18-19, 2016.| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 86 | |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
12/04/2011 |
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Data da última atualização: |
12/04/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
-- - -- |
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Autoria: |
HAWERROTH, F. J.; PETRI, J. L.; LEITE, G. B. |
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Afiliação: |
Epagri |
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Título: |
Erger and Calcium Nitrate Concentration for Budbreak Induction in Apple Trees. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Acta Horticulturae, Leuven, v. 872, p. 239-244, 2010. |
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Idioma: |
Inglês |
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Notas: |
ISSN, 0567-7572 |
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Conteúdo: |
Apple trees grown in low chilling rest and break the dormancy later than those grown in colder areas. Low chilling shows symptoms such as low budbreak, which directly influences potential yield. Budbreak inductors are commercially used to overcome cold deficiency. Their effectiveness increases when at least 50% of the chilling requirement of a specific species or variety is naturally supplied. The lower the chilling the greater the concentration required for good budbreak and blooming. Too high concentrations may injure branches and fruiting organs. Erger, an inorganic nitrogen compound, has recently been introduced as an option for breaking apple dormancy. This work had the purpose of evaluating the effects of Erger and calcium nitrate concentrations on budbreak induction of ?Imperial Gala? and ?Suprema? (Fuji?s mutation). The experiments were carried out in Caçador - SC, Brazil (Lat. 26°46?31?S), in a RCB design, and 5 treatments with 6 replicates of one tree per plot. The treatments were control, standard (mineral oil 3% + Dormex®
0.7%), and Erger + calcium nitrate at concentrations of 3, 5 and 7%. The variables
evaluated were full bloom date, axillary and terminal budbreak, fruit set, fruits per cluster and mean fruit weight. The concentration of Erger + calcium nitrate had no effect on full bloom date, but these treatments anticipated it 24 days for ?Imperial Gala? and 7 days for ?Suprema?. Budbreak in axillary and terminal buds of the check was lower than in the other treatments up to 60 days after application. Budbreak did not differ between products and concentrations sprayed. Fruit set was not affected by Erger + calcium nitrate concentration. Sprayed trees with budbreak inductors had lower fruit set than the check trees of ?Imperial Gala?and ?Suprema?. The mean fruit weight was greater in all treated trees than in the control treatment.
Erger 7% + calcium nitrate 7% showed phytotoxicity symptoms, but they were
more intensive in ?Imperial Gala? than in ?Suprema?. MenosApple trees grown in low chilling rest and break the dormancy later than those grown in colder areas. Low chilling shows symptoms such as low budbreak, which directly influences potential yield. Budbreak inductors are commercially used to overcome cold deficiency. Their effectiveness increases when at least 50% of the chilling requirement of a specific species or variety is naturally supplied. The lower the chilling the greater the concentration required for good budbreak and blooming. Too high concentrations may injure branches and fruiting organs. Erger, an inorganic nitrogen compound, has recently been introduced as an option for breaking apple dormancy. This work had the purpose of evaluating the effects of Erger and calcium nitrate concentrations on budbreak induction of ?Imperial Gala? and ?Suprema? (Fuji?s mutation). The experiments were carried out in Caçador - SC, Brazil (Lat. 26°46?31?S), in a RCB design, and 5 treatments with 6 replicates of one tree per plot. The treatments were control, standard (mineral oil 3% + Dormex®
0.7%), and Erger + calcium nitrate at concentrations of 3, 5 and 7%. The variables
evaluated were full bloom date, axillary and terminal budbreak, fruit set, fruits per cluster and mean fruit weight. The concentration of Erger + calcium nitrate had no effect on full bloom date, but these treatments anticipated it 24 days for ?Imperial Gala? and 7 days for ?Suprema?. Budbreak in axillary and terminal buds of the check was lower than in the other ... Mostrar Tudo |
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Palavras-Chave: |
Budbreak inductors; Domência; Dormancy; Maçã; Malus domestica. |
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Categoria do assunto: |
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Marc: |
LEADER 02530naa a2200193 a 4500
001 1075614
005 2011-04-12
008 2010 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aErger and Calcium Nitrate Concentration for Budbreak Induction in Apple Trees.
260 $c2010
500 $aISSN, 0567-7572
520 $aApple trees grown in low chilling rest and break the dormancy later than those grown in colder areas. Low chilling shows symptoms such as low budbreak, which directly influences potential yield. Budbreak inductors are commercially used to overcome cold deficiency. Their effectiveness increases when at least 50% of the chilling requirement of a specific species or variety is naturally supplied. The lower the chilling the greater the concentration required for good budbreak and blooming. Too high concentrations may injure branches and fruiting organs. Erger, an inorganic nitrogen compound, has recently been introduced as an option for breaking apple dormancy. This work had the purpose of evaluating the effects of Erger and calcium nitrate concentrations on budbreak induction of ?Imperial Gala? and ?Suprema? (Fuji?s mutation). The experiments were carried out in Caçador - SC, Brazil (Lat. 26°46?31?S), in a RCB design, and 5 treatments with 6 replicates of one tree per plot. The treatments were control, standard (mineral oil 3% + Dormex® 0.7%), and Erger + calcium nitrate at concentrations of 3, 5 and 7%. The variables evaluated were full bloom date, axillary and terminal budbreak, fruit set, fruits per cluster and mean fruit weight. The concentration of Erger + calcium nitrate had no effect on full bloom date, but these treatments anticipated it 24 days for ?Imperial Gala? and 7 days for ?Suprema?. Budbreak in axillary and terminal buds of the check was lower than in the other treatments up to 60 days after application. Budbreak did not differ between products and concentrations sprayed. Fruit set was not affected by Erger + calcium nitrate concentration. Sprayed trees with budbreak inductors had lower fruit set than the check trees of ?Imperial Gala?and ?Suprema?. The mean fruit weight was greater in all treated trees than in the control treatment. Erger 7% + calcium nitrate 7% showed phytotoxicity symptoms, but they were more intensive in ?Imperial Gala? than in ?Suprema?.
653 $aBudbreak inductors
653 $aDomência
653 $aDormancy
653 $aMaçã
653 $aMalus domestica
773 $tActa Horticulturae, Leuven$gv. 872, p. 239-244, 2010.
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