Early Ripening of Southern Highbush Blueberries Under Mild Winter Conditions

Baptista, M.C.; Oliveira, P.B.; Fonseca, Laura; Oliveira, Cristina M.

doi:10.17660/actahortic.2006.715.27

Cited by 11 publications

(5 citation statements)

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“…Southern highbush blueberry production in unheated high tunnels ( Figure 3) has been studied in different countries, including Japan [11], Spain [12], Portugal [13], Chile [2], and the United States [14]. High tunnels increase soil and air temperature around the plant [6,15,16], reducing cold stress or damage [16] and enhancing heat unit accumulation during winter and early spring [11,14,16,17].…”

Section: High Tunnel Productionmentioning

confidence: 99%

“…Optimal temperature ranges vary among SHB cultivars, and cultivars with a recent introgression of subtropical wild species might exhibit greater tolerance for high temperatures [22]. Late-developing cultivars might be negatively impacted by high air temperatures inside high tunnels, where poor fruit set could reduce productivity [13].…”

Section: High Tunnel Productionmentioning

confidence: 99%

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A Review for Southern Highbush Blueberry Alternative Production Systems

et al. 2020

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Southern highbush blueberry cultivation has expanded into non-traditional growing areas worldwide due to elite cultivars and improved horticultural practices. This article presents a comprehensive review of current production systems—alternatives to traditional open field production—such as production in protected environments, high-density plantings, evergreen production, and container-based production. We discuss the advantages and disadvantages of each system and compare their differences to open field production. In addition, we provide potential solutions for some of the disadvantages. We also highlight some of the gaps existing between academic studies and production in industry, providing a guide for future academic research. All these alternative systems have shown the potential to produce high yields with high-quality berries. Alternative systems, compared to field production, require higher establishment investments and thus create an entry barrier for new producers. Nevertheless, with their advantages, alternative productions have the potential to be profitable.

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Section: High Tunnel Productionmentioning

confidence: 99%

Section: High Tunnel Productionmentioning

confidence: 99%

A Review for Southern Highbush Blueberry Alternative Production Systems

et al. 2020

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“…is a highvalue crop, particularly when grown organically and during periods of low production (Williamson and Lyrene, 2004a). Previous findings suggest that high tunnels can advance the yield of blueberries by 1 week to 1 month (Bal, 1996;Baptista et al, 2006;Ciordia et al, 2002;Hicklenton et al, 2004;Ozeki and Tamada, 2006). The effects of high tunnels on fruit growth and development are cultivar-specific (Baptista et al, 2006;Renquist, 2005).…”

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confidence: 95%

Southern Highbush Blueberry Production in High Tunnels: Temperatures, Development, Yield, and Fruit Quality During the Establishment Years

Ogden¹,

Iersel²

2009

horts

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Growers interested in producing early, high-quality, southern highbush blueberries (Vaccinium corymbosum L.) in high tunnels face a lack of information regarding appropriate cultural methods. We sought to elucidate the optimal date to close high tunnels to hasten vegetative and reproductive growth of organic southern highbush blueberry cultivars Emerald and Jewel grown in Georgia. The three dates selected to close the high tunnels were 15 Dec., 2 Jan., and 16 Jan. High tunnels raised soil and daytime air temperatures during winter months, but the tunnels did not retain heat at night and did not provide freeze protection without the use of propane heaters. The high tunnel microclimate advanced both vegetative and reproductive growth compared with outdoor plants. Averaged over the 2-year study, the 15 Dec. tunnel closure advanced flower initiation by 38 days for ‘Emerald’ and 39 days for ‘Jewel’ compared with outdoor control plants. Synchronization of flowering of the two cultivars was poor in 2007 when ‘Emerald’ flowered much earlier than ‘Jewel’ and much better in 2008. In 2007, flower and fruit development of ‘Jewel’ were faster than that of ‘Emerald’ with Jewel going from the appearance of individual flowers to ripe fruit in 80 days as compared with 105 days for ‘Emerald’. Total yield was strongly correlated with fruit set (r = 0.94). ‘Emerald’ fruit contained higher concentrations of soluble solids and anthocyanins than ‘Jewel’ fruit, and anthocyanin concentrations increased throughout the harvest period. No fruit matured in 2008 as a result of freeze damage. The biggest obstacle for high tunnel production of southern highbush blueberries appears to be preventing freeze damage and assuring pollination. Cost-effective freeze protection and ways to promote good fruit set will be critical to successful production of early southern highbush blueberries in high tunnels.

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“…Kadir et al (2006) and Salame-Donoso et al (2010) proved that strawberry leaf area and number, shoot biomass, and soluble solid content improved under high tunnels. In southern highbush blueberry, previous studies conducted in Italy, Portugal, and Japan indicated that production could be from 1 week to 1 month earlier under high tunnels compared with open-field production (Baptista et al, 2006;Ciordia et al, 2002;Ozeki and Tamada, 2006). However, there is no information on the effect of this type of structure on southern highbush blueberry fruit earliness under the subtropical Florida conditions.…”

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Performance of Southern Highbush Blueberry Cultivars Under High Tunnels in Florida

Santos¹,

Salamé-Donoso²

2012

hortte

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A study was conducted over two southern highbush blueberry (Vaccinium corymbosum × Vaccinium darrowi) seasons in a grower field in Florida. The objective was to compare the early fruit weight of southern highbush blueberry cultivars in high tunnels and in open fields. Four treatments were tested using combinations of two southern highbush blueberry cultivars (Snow Chaser and Springhigh) and two production systems (open fields and 18-ft-high tunnels). The results indicated that there was a significant effect of the production systems on the number of days with air temperatures at or near freezing (≤34 °F), and maximum and minimum air temperatures. The minimum air temperature in open-field plots reached ≈19 and 21 °F (61 freezing or near-freezing events) in the 2009–10 and 2010–11 seasons, respectively, whereas the minimum air temperatures inside the high tunnels were ≈32 and 33 °F, respectively, during the same seasons (only 3 days at ≤34 °F). This indicated that using high tunnels was an effective means to avoid freezing air temperatures in blueberries. In the first season, the cumulative early fruit weight was the highest in plots planted with ‘Snow Chaser’ inside the high tunnels (≈10 tons/acre), while the combined production of the two cultivars in the open fields did not reach 1 ton/acre until the end of the early harvests. The following year, there were no differences in the cumulative early fruit weight of both cultivars when planted in the open fields (2.2 tons/acre) and the cumulative fruit yields of ‘Springhigh’ and ‘Snow Chaser’ growing inside the high tunnels was twice and four times higher, respectively, than the early fruit production obtained in the open fields. These data showed the profound effect of high tunnels on flower protection and fruit set. High tunnels reduced water use for freeze protection. The total volume used in the open fields during the freezing or near-freezing days was ≈2.5 acre-inch/acre per 8 hours of freeze protection, whereas only 1/10 of that volume was applied inside the structures.

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Early Ripening of Southern Highbush Blueberries Under Mild Winter Conditions

Cited by 11 publications

References 0 publications

A Review for Southern Highbush Blueberry Alternative Production Systems

A Review for Southern Highbush Blueberry Alternative Production Systems

Southern Highbush Blueberry Production in High Tunnels: Temperatures, Development, Yield, and Fruit Quality During the Establishment Years

Performance of Southern Highbush Blueberry Cultivars Under High Tunnels in Florida

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