Induction of bud development in apple trees with the application of vegetable and mineral oils

Marchi, Thiago De; Oliari, Ires Cristina Ribeiro; Maia, Aline José; Sato, Alessandro Jefferson; Botelho, Renato Vasconcelos

doi:10.5935/1806-6690.20170059

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Bud break promoters shorten the period between full bloom and the end of bloom. Marchi et al [18] also found that the application of MO in apple trees anticipates flowering and reduces the period. [11].…”

Section: Resultsmentioning

confidence: 95%

Thidiazuron with Mineral Oil as Alternative Bud Break Promoter for Apple Trees

Petri¹,

Sezerino²,

Fenili

et al. 2021

JEAI

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Aims: This work aims to evaluate the efficiency of Revent® 500 SC (Thidiazuron) concentrations as a bud breaker promoter in apple trees, cv. Maxi Gala and Supreme Fuji, through phenology, sprouting of buds, fruit set and production per plant. Place and Duration of Study: The experiments were carried out in southern Brazil, municipality of Caçador / SC, during the seasons from 2017 to 2019, in the cultivars Fuji Suprema and Maxi Gala / Marubakaido / M9. Methodology: The treatments were 1. Control (without application); 2. Mineral Oil (MO) 3.5% + Hydrogenated Cyanamide (HC) 0.35%; 3. MO 3.5% + HC 0.5%; 4. MO 3.5% + Thidiazuron (TDZ) 0.005%; 5. MO 3.5% + TDZ 0.01%; 6. MO 3.5% + TDZ 0.015%; 7.MO 3.5% + TDZ 0.02%; 8.MO 3.5% + TDZ 0.025%, applied in stages B and C. Several variables were evaluated such as phenology, sprouting of axillary and terminal buds, fruit set, production per plant and average fruit mass. Results: All treatments with bud breakers advanced the phenological stages in relation to the control in the three years. In the sprouting of the axillary and terminal buds, all treatments were superior to the control. TDZ treatments showed higher sprouting of axillary buds in 2017/18 compared to standard treatments with hydrogenated cyanamide. In plant production, the treatment MO 3.5% + TDZ 0.02% was higher than the other treatments in the 2018/19 and 2019/20 seasons, in both cultivars. TDZ associated with mineral oil is efficient in inducing the sprouting of ‘Maxi Gala’ and ‘Fuji Suprema’ apple trees and can be used to recover sprouts from previous years.

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Section: Resultsmentioning

confidence: 95%

Thidiazuron with Mineral Oil as Alternative Bud Break Promoter for Apple Trees

Petri¹,

Sezerino²,

Fenili

et al. 2021

JEAI

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“…Marchi et al . (2017) working with apple trees found changes in the activity of CAT or POD 24 h after the application of dormancy-breaking products, following the recommendations of the literature. Mohamed et al .…”

Section: Discussionmentioning

confidence: 97%

“…In the improvements in peach quality, the results agree with Hawerroth et al (2010b) and Uber et al (2019) who also did not observe changes in the quality or production of apples with the application of chemicals to break dormancy. Marchi et al (2017) working with apple trees found changes in the activity of CAT or POD 24 h after the application of dormancy-breaking products, following the recommendations of the literature. Mohamed et al (2012) found that the application of hydrogen cyanamide had an inhibitory effect on CAT activity, an effect that triggered the oxidative stress process, with an increase in H 2 O 2 that promoted the breaking of dormancy.…”

Section: Discussionmentioning

confidence: 97%

Dormancy breaking of ‘Kampai’ peach trees with alternative products in subtropical regions

et al. 2021

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Peach trees initiate flowering and then dense budding when the temperatures in winter are steadily low. When temperatures during the winter are high or when the chilling accumulation needs of the cultivar are not met, it is necessary to apply chemicals that stimulate flowering and budding in a uniform manner. This study aimed to evaluate alternative products for breaking the dormancy of ‘Kampai’ peach trees in a subtropical region. The experiment was conducted with ‘Kampai’ peach trees in the 2018, 2019 and 2020 production with the following treatments: (1) negative control composed only of water (control); (2) positive control composed of hydrogen cyanamide at a dose of 1.5% (commercial product Dormex®) plus 4.5% mineral oil; (3) Erger G® organomineral fertilizer supplemented with calcium nitrate at a dose of 3%; (4) potassium nitrate at a dose of 5%; and (5) copper sulphate at a dose of 0.3%. We evaluated affected budding capacity, flowering, the production cycle, peach production, the quality of peach trees and the enzymatic activities of catalase and guaiacol peroxidase. Hydrogen cyanamide and the organomineral fertilizer Erger G® promoted earlier flowering and an earlier production cycle. On the other hand, hydrogen cyanamide and copper sulphate stimulated flower opening and peach production. The chemicals used decreased catalase activity (24 h after application) and increased guaiacol peroxidase activity (6 h after application). The application of copper sulphate may be an option to break the dormancy of peach trees in the subtropics.

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Superação da dormência em macieira: efeito do frio combinado com uso de indutor de brotação

Anzanello¹,

Christo

Sartori

2020

PESQ. AGROP. GAÚCHA

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A superação da dormência das gemas em macieira ocorre após um acúmulo de horas de frio (HF) no outono/inverno. Caso o ambiente não supra a necessidade de frio das plantas, lança-se mão de insumos indutores de brotação para a superação artificial da dormência. Objetivou-se avaliar a superação da dormência de gemas de macieira combinando o efeito do frio e o uso de um indutor de brotação. Utilizou-se o indutor de brotação padrão para a cultura da macieira (Dormex® 1% + Óleo Mineral 4% - D/OM) na cultivar Royal Gala após a variedade receber diferentes tempos de frio. Estacas de ‘Royal Gala’ foram coletadas a campo em abril/2016 e submetidas ao tratamento com D/OM, após 0, 100, 200, 300, 400, 500 e 600 HF. Um tratamento controle foi incluso, com aplicação somente de frio a 7,2ºC. No tratamento controle, a variedade Royal Gala superou a dormência com 600 HF. Quando testado o D/OM combinado com o frio, os produtos não foram eficientes para a superação da dormência após 0, 100 e 200 HF, atingindo aproximadamente 50% de brotação das gemas. Porém quando o D/OM foi aplicado após 300, 400, 500 e 600 HF, as plantas responderam com uma alta taxa de brotação (acima de 90% de brotação), indicando que produtos indutores de brotação, como o D/OM, terão efeito somente se o ambiente suprir naturalmente 50% ou mais da necessidade de frio do genótipo a campo.

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Induction of bud development in apple trees with the application of vegetable and mineral oils

Cited by 4 publications

References 2 publications

Thidiazuron with Mineral Oil as Alternative Bud Break Promoter for Apple Trees

Thidiazuron with Mineral Oil as Alternative Bud Break Promoter for Apple Trees

Dormancy breaking of ‘Kampai’ peach trees with alternative products in subtropical regions

Superação da dormência em macieira: efeito do frio combinado com uso de indutor de brotação

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