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

Barreto, Caroline Farias; Ferreira, Letícia Vanni; Costa, Savana Irribarem; Schiavon, Andressa Vighi; Becker, Tais Barbosa; Vignolo, Gerson Kleinick; Antunes, Luís Eduardo Corrêa

doi:10.5433/1679-0359.2018v39n5p1937

Cited by 2 publications

(2 citation statements)

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“…Generally, strawberry plants show different responses depending on the cultivar being treated [40,41], and these characteristics are controlled by genetic traits of the cultivars [42]. Barreto et al [43] reported that concentrations of 200 and 400 mg•L −1 Pro-Ca markedly reduced vegetative growth indicators such as petiole length and leaf area in the strawberry cultivars Camarosa and Aromas. Thus, a concentration of 100 mg•L −1 Pro-Ca was suggested as the most appropriate concentration to apply to the cultivars Camarosa and Aromas.…”

Section: Growth Characteristics Of Mother Plants At 15 Weeks After Trmentioning

confidence: 99%

“…In addition, it is considered that the photosynthetic products of the mother plant were more effectively translocated to the runner plant due to the formation of the high quality runner after application of 50 mg•L −1 Pro-Ca (Figure 3). In previous studies, Pro-Ca treatment of strawberries focused mainly on the concentration and number of foliar spray application [16][17][18]43]. Foliar spray applications are most commonly used in PGRs, but can result in non-uniform plant size if careful attention to technique is not used [50].…”

Section: Growth Characteristics Of the First Second And Third Runnementioning

confidence: 99%

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Prohexadione-Calcium Application during Vegetative Growth Affects Growth of Mother Plants, Runners, and Runner Plants of Maehyang Strawberry

et al. 2019

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Strawberry (Fragaria × ananassa Duch.) is an important horticultural crop that is vegetatively propagated using runner plants. To achieve massive production of runner plants, it is important to transfer the assimilation products of the mother plant to the runner plants, and not to the runner itself. Application of prohexadione–calcium (Pro–Ca), a plant growth retardant with few side effects, to strawberry is effective in inhibiting transport of assimilates to runners. This study aimed to determine the optimum application method and concentration of Pro–Ca on the growth characteristics of mother plants, runners, and runner plants for the propagation of strawberry in nurseries. Pro–Ca was applied at the rate of 0, 50, 100, 150, or 200 mg·L−1 (35 mL per plant) to plants via foliar spray or drenching under greenhouse conditions at 30 days after transplantation. Petiole lengths of mother plants were measured 15 weeks after treatment; growth was suppressed at the higher concentrations of Pro–Ca regardless of the application method. However, the crown diameter was not significantly affected by the application method or Pro–Ca concentration. The number of runners was 7.0 to 8.2, with no significant difference across treatments. Runner length was shorter at higher concentrations of Pro–Ca, especially in the 200 mg·L−1 drench treatment. However, fresh weight (FW) and dry weights (DW) of runners in the 50 mg·L−1 Pro–Ca drench treatments were higher than controls. Foliar spray and drench treatments were more effective for runner plant production than the control; a greater number of runner plants were produced with the 100 and 150 mg·L−1 Pro–Ca foliar spray treatment and the 50 and 100 mg·L−1 drench treatment. The FW and DW of the first runner plant was not significantly different in all treatments, but DW of the second runner plant, and FW and DW of the third runner plant were greatest in the 50 mg·L−1 Pro–Ca drench treatment. These results suggested that growth and production of runner plants of Maehyang strawberry were greatest under the 50 mg·L−1 Pro–Ca drench treatment.

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Section: Growth Characteristics Of Mother Plants At 15 Weeks After Trmentioning

confidence: 99%

Section: Growth Characteristics Of the First Second And Third Runnementioning

confidence: 99%

Prohexadione-Calcium Application during Vegetative Growth Affects Growth of Mother Plants, Runners, and Runner Plants of Maehyang Strawberry

et al. 2019

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

Cited by 2 publications

References 9 publications

Prohexadione-Calcium Application during Vegetative Growth Affects Growth of Mother Plants, Runners, and Runner Plants of Maehyang Strawberry

Prohexadione-Calcium Application during Vegetative Growth Affects Growth of Mother Plants, Runners, and Runner Plants of Maehyang Strawberry

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

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