Effects of Cane Emergence Time, Bending, and Defoliation on Flowering and Yield in Primocane-Fruiting Blackberry

Takeda, Fumiomi; Rose, Ann; Demchak, Kathleen

doi:10.3390/agronomy10111737

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…Unfortunately, we had to decapitate the vigorously growing plants as they became unmanageable at the higher temperatures after four weeks of cultivation. Since shoot tipping is shown to influence flowering in both biennial-and annual-fruiting blackberries [8,17], the results of the decapitated plants are not directly comparable with those of the nondecapitated plants at 12 • C. Accordingly, only tentative conclusions are permissible from comparison of these results.…”

Section: Discussionmentioning

confidence: 96%

“…For comparison, it should be mentioned that FBI in the annual-fruiting types of blackberry is less strictly controlled by environmental factors, and takes place more or less freely after a short period of vegetative growth [16,17]. This is analogous to the situation in annual-fruiting raspberries which is less photoperiodic dependent and which flower freely across the entire 6-30 • C temperature range [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Temperature and Daylength Effects on Growth and Floral Initiation in Biennial-Fruiting Blackberry

Sønsteby,

Heide

2023

Horticulturae

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Little is known about the environmental control of growth and flower bud initiation (FBI) in commercial blackberries. We studied the processes in the cultivars ‘Lock Ness’, ’Ouachita’ and ‘Sweet Royalla’ at 12, 16 and 20 °C in a daylight phytotron under naturally decreasing autumn daylength at Ås, Norway (59°40′ N). Growth rate increased with increasing temperature but was much lower at all temperatures in the erect ‘Ouachita’ than in the trailing cultivars ‘Lock Ness’ and ‘Sweet Royalla’. In all cultivars, FBI occurred earliest at 16 °C, whereas little or no FBI took place in ‘Ouachita’ and ‘Lock Ness’ at 12 °C. Growth cessation was earliest at 16 °C where it occurred in early September in all cultivars, suggesting a critical daylength of approximately 14 h. At variance from earlier statements, FBI started in lateral buds situated several nodes below the apex and progressed in both acropetal and basipetal directions as previously reported for red raspberry. Winter chill at 0 °C enhanced flowering in spring in marginally induced plants of all cultivars except ‘Ouachita’ grown at 12 °C, which remained vegetative in spring. The results suggest that temperature is as important as daylength for FBI in biennial-fruiting blackberry, and that winter chilling may enhance flowering and yield potential in partially induced plants.

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Temperature and Daylength Effects on Growth and Floral Initiation in Biennial-Fruiting Blackberry

Sønsteby,

Heide

2023

Horticulturae

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Impact of Modified Caneberry Trellis Systems on Microclimate and Habitat Suitability forDrosophila suzukii(Diptera: Drosophilidae)

Schöneberg

English

Popp

et al. 2021

Journal of Economic Entomology

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Caneberries are trellised to facilitate harvest and agrochemical applications as well as to improve crop yield and quality. Trellising can also increase airflow and light penetration within the canopy and affect its microclimate. We compared an experimental trellis that split the canopy into halves to standard I- and V-trellises, measuring Drosophila suzukii (Matsumura) fruit infestation as well as canopy temperature and relative humidity in raspberries at two commercial you-pick diversified farms. To evaluate the combined effects of trellising systems and pruning, we pruned one half of each row in blackberry plantings at two research farms and assessed D. suzukii infestation, canopy microclimate (temperature, relative humidity, and light intensity), fruit quality parameters (interior temperature, total soluble solids, and penetration force), and spray coverage/deposition. Trellis installation costs, labor inputs, and yield were used to further evaluate the trellis systems from an economic perspective. Fruit quality was not affected by trellising or pruning and lower total yield was observed in the experimental trellis treatment on one farm. Although D. suzukii infestation was only affected by trellising and pruning at one site, we observed a relationship between higher temperatures and reduced infestation on nearly all farms. Occasionally, lower relative humidity and high light intensity corresponded with lower infestation. Ultimately, the experimental trellis was less economically efficient than other trellising systems and our ability to successfully manipulate habitat favorability varied in a site-specific manner. Drosophila suzukii management approaches that rely upon unfavorable conditions are likely to be more effective in hot, dry regions.

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Identifying alternative management practices to promote blackberry lateral branch development

Kon,

Fernandez,

Melgar

et al. 2024

Acta Hortic.

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Effects of Cane Emergence Time, Bending, and Defoliation on Flowering and Yield in Primocane-Fruiting Blackberry

Cited by 3 publications

References 27 publications

Temperature and Daylength Effects on Growth and Floral Initiation in Biennial-Fruiting Blackberry

Temperature and Daylength Effects on Growth and Floral Initiation in Biennial-Fruiting Blackberry

Impact of Modified Caneberry Trellis Systems on Microclimate and Habitat Suitability forDrosophila suzukii(Diptera: Drosophilidae)

Identifying alternative management practices to promote blackberry lateral branch development

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