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 5 publications

(5 citation statements)

References 2 publications

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“…Tupy, in which the 4.5%-dose showed greater anticipation, uniformity, budding, and fruit production (Fernández et al 2011). Marchi et al (2017) also observed that, regardless of the cultivar, the location of the bud, and the evaluation period, the highest percentages of budding of apple tree buds were obtained with the use of CH 2 N 2 (2%) + mineral oil compared to the absence of CH 2 N 2 . Although other products, such as vegetable and mineral oil, showed a significant increase in budding percentage, Marchi et al (2017) observed that the use of oils did not reach half of the gains obtained (bud sprouting) with the use of CH 2 N 2 .…”

Section: Resultsmentioning

confidence: 76%

“…Marchi et al (2017) also observed that, regardless of the cultivar, the location of the bud, and the evaluation period, the highest percentages of budding of apple tree buds were obtained with the use of CH 2 N 2 (2%) + mineral oil compared to the absence of CH 2 N 2 . Although other products, such as vegetable and mineral oil, showed a significant increase in budding percentage, Marchi et al (2017) observed that the use of oils did not reach half of the gains obtained (bud sprouting) with the use of CH 2 N 2 . Chen and Beckman (2019) observed budding approximately four times higher in peach tree branches sprayed with CH 2 N 2 than in untreated branches.…”

Section: Resultsmentioning

confidence: 76%

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Hydrogened cyanamide promotes dormancy breakage in pear tree grown in a subtropical region

Suárez,

Abreu,

Peche

et al. 2024

Bragantia

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The pear tree (Pyrus spp.) is a fruit tree of temperate climate, so it needs a certain number of hours under cold temperatures to overcome its natural dormancy. It can be cultivated in the tropics, but few regions have cold enough winters to overcome the natural dormancy of pear trees. For this purpose, it is necessary to select cultivars with less need for cold conditions combined with the use of budinducing to sprouting and flowering products. This study aimed to test doses of hydrogenated cyanamide (Dormex) to break dormancy and induce bud sprouting in different pear cultivars under subtropical conditions. The branches of five pear tree cultivars, 'Cascatense', 'Primorosa', 'Seleta', 'Packham's Triumph', and 'William's', were sprayed with Dormex (a commercial product containing 52% hydrogen cyanamide, CH 2 N 2 ) at 1, 2, 3, 4, or 5% or with water (control). The trees were evaluated at two, four, six, eight, 10, and 12 weeks after the application of the treatments in two consecutive years. The European pear trees 'William's' and 'Packham's Triumph' showed low budding rates compared to hybrid pear trees. Hybrid pear showed better performance in subtropical regions, with higher budding rates, than European pear. CH 2 N 2 efficiently induces bud sprouting of pear, with especially 4 and 5% Dormex.

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Section: Resultsmentioning

confidence: 76%

Section: Resultsmentioning

confidence: 76%

Hydrogened cyanamide promotes dormancy breakage in pear tree grown in a subtropical region

Suárez,

Abreu,

Peche

et al. 2024

Bragantia

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

Cited by 5 publications

References 2 publications

Hydrogened cyanamide promotes dormancy breakage in pear tree grown in a subtropical region

Hydrogened cyanamide promotes dormancy breakage in pear tree grown in a subtropical region

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

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

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