Controle do crescimento de mudas de morangueiro Camarosa cultivadas em substrato comercial pela aplicação de Proexadione cálcio

Pereira, Ivan dos Santos; Gonçalves, Marco Antônio; Picolotto, Luciano; Vignolo, Gerson Kleinick; Antunes, Luís Eduardo Corrêa

doi:10.4322/rca.2126

Cited by 2 publications

(8 citation statements)

References 9 publications

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“…Thus, ProCa in this experiment altered the concentration of pigments involved in photosynthesis, since chlorophyll a is the pigment used to carry out the photochemical phase of photosynthesis and chlorophyll b, together with other pigments, aids in the absorption of light and the transfer of radiant energy to the reaction centers (TAIZ et al, 2017). In addition to the effect of ProCa on chlorophyll content, Pereira et al (2016) verified that the use of this phytoregulator also causes physiological changes in strawberry seedlings, since it changes the photosynthetic activity of the leaves.…”

Section: Resultsmentioning

confidence: 79%

“…This reduces the levels of gibberellin, which functions in cell division, cell elongation, and growth (TAIZ Concentration and periods of application of prohexadione calcium in the growth of strawberry seedlings et al, 2017). Reduction in the length of apple (HAWERROTH; PETRI, 2014) and pear (PASA; EINHORNET, 2014, PASA; EINHORNET, 2017) branches has also been observed, as well as reduction of the petiole of strawberry seedlings (PEREIRA et al, 2016) following the application of ProCa.…”

Section: Resultsmentioning

confidence: 95%

“…This reduction of the leaf aerial parts observed in the seedlings with ProCa application, and especially in the highest concentration tested in this experiment (400 mg L -1 ), possibly occurred due to the hormonal regulation exerted by ProCa. That is, when this phytoregulator is applied, it induces a reduction of GA levels that inhibits cell elongation and leaf growth (PEREIRA et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…However, while seedling production initiatives in the national territory have been undertaken in the summer, the seedlings were planted only at the end of the season or the following spring. During this period, excessive development of the aerial part occurs, which necessitates control of plant growth (PEREIRA et al, 2016). These seedlings, when produced under favorable environmental conditions, may also accumulate fewer reserves in the crown and roots, which consequently decreases the quality of the seedling (COCCO et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…ProCa reduces the activity of GA 20 3β-hydroxylase, an enzyme that acts on the conversion of GA 20 (inactive gibberellins) to GA 1 (active gibberellins), thus controlling vegetative growth (KANG et al, 2010;HAWERROTH;PETRI, 2014). ProCa is effective in controlling vegetative growth and thus can be used for this purpose in strawberry seedlings (REEKIE et al, 2005;PEREIRA et al, 2016), as the domestic seedlings exhibit greater leaf growth and reduced reserve accumulation.…”

Section: Introductionmentioning

confidence: 99%

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Concentration and periods of application of prohexadione calcium in the growth of strawberry seedlings

Barreto

Ferreira

Costa

et al. 2018

SCA

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For strawberry cultivation in Brazil, producers are dependent on imported seedlings. An alternative strategy to reduce this dependence is the use of seedlings obtained from nursery plants grown in a protected environment. However, as these seedlings are produced in the summer and planted at the end of this season or the spring of the following year, it is necessary to control growth to reduce the energy costs of the plants. The objective of this study was to evaluate the effect of different concentrations and periods of application of proexadione calcium (ProCa) on growth control of strawberry seedlings. The experiment was carried out in a greenhouse with seedlings of the cultivars ‘Aromas’ and ‘Camarosa’, produced by rooting stolons and kept in polystyrene trays of 72 cells in a substrate of carbonized rice husk. The experimental design was completely randomized, with a 4 × 2 factorial scheme (4 concentrations of ProCa: 0, 100, 200, and 400 mg L-1 × 2 periods of application: at 20 and 30 days after the planting period of rooting stolon). Plant survival, crown diameter, petiole length, total leaf area, specific leaf area, chlorophyll concentration, and dry mass of the crown and shoot were evaluated. The application of ProCa at 20 days after the planting period of the rooting stolon at the concentrations of 200 and 400 mg L-1 favored the reduction of petiole length in plants of ‘Aromas’ strawberry and total leaf aerial in ‘Camarosa’ strawberry. The application of ProCa from the concentration of 100 mg L-1 reduced the vegetative growth of ‘Aromas’ and ‘Camarosa’ strawberry seedlings cultivated in substrate.

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Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Concentration and periods of application of prohexadione calcium in the growth of strawberry seedlings

Barreto

Ferreira

Costa

et al. 2018

SCA

Self Cite

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Productive behavior of strawberry from potted seedlings produced with application of prohexadione calcium in soilless cultivation

Becker¹,

Schiavon²,

Delazeri³

et al. 2020

Emir J Food Agric

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Use of national strawberry seedlings, produced in a system without soil, is an alternative to reduce the dependence of producers on using imported seedlings. The objective of this work was to evaluate the effect of applying different concentrations of prohexadione calcium (ProCa) in the growth control of strawberry seedlings and the productive behavior after planting these seedlings. The experiment was carried out in a greenhouse, with a 4 x 2 factorial scheme, four concentrations of prohexadione calcium (0, 150, 300 and 600 mg L-1) and two cultivars (Aromas and Camarosa). In the seedling phase, a completely randomized design was used, with 4 replications, with the experimental unit consisting of 12 seedlings. In the post-planting phase, a completely randomized design was used, with 5 replications and the experimental unit consisted of 4 plants. In the seedlings, the following were evaluated: number of leaves, crown diameter, petiole length, leaf area, chlorophyll content and dry matter of the aerial part. The parameters evaluated in the strawberry plants were: full bloom and fruiting, number of fruits per plant, average fruit weight, total fruit weight, length and diameter of fruit, dry weight of leaves and crowns. The application of 150, 300 and 600 mg L-1 of ProCa decreased the leaf area and petiole length for both cultivars, thus reduced the vegetative growth of the seedlings. On the other hand the chlorophyll a, b and total contents were increased in relation to the absence of ProCa for the two cultivars evaluated. The ProCa concentrations did not influence the number of fruits and the fruit mass per plant, and the results were related to the cultivar factor, where the cv Camarosa had the higher values.

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Controle do crescimento de mudas de morangueiro Camarosa cultivadas em substrato comercial pela aplicação de Proexadione cálcio

Cited by 2 publications

References 9 publications

Concentration and periods of application of prohexadione calcium in the growth of strawberry seedlings

Concentration and periods of application of prohexadione calcium in the growth of strawberry seedlings

Productive behavior of strawberry from potted seedlings produced with application of prohexadione calcium in soilless cultivation

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