+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Assessment of the v45 blueberry harvester on rabbiteye blueberry and southern highbush blueberry pruned to V-shaped canopy



Assessment of the v45 blueberry harvester on rabbiteye blueberry and southern highbush blueberry pruned to V-shaped canopy



HortTechnology 18(1): 130-138



Mechanical harvesting systems for processed blueberries (Vaccinium spp.) are available. However, low harvest efficiency and high fruit damage have limited the use of mechanical harvesters for picking blueberries for fresh market to specific cultivars under good weather conditions. New harvesting technology for fresh-market blueberries is needed. The V45 harvester was developed by the U.S. Department of Agriculture in 1994 to harvest fresh-market-quality northern highbush (V. corymbosum) blueberries in Michigan. The current study was performed in Georgia to evaluate the V45 harvester on specially pruned rabbiteye blueberry [V. virgatum (syn. V. ashei)] and southern highbush blueberry (V. darrowi x V. corymbosum) and included analysis of harvest efficiency and fruit quality (percent blue fruit, percent bloom, percent split skin, and internal bruise damage). Six-year-old, 6- to 8-ft-tall 'Brightwell' and 'Powderblue' rabbiteye blueberry plants were winter pruned to remove vertically growing and overarching canes in the center of the bush in Jan. 2004 and Feb. 2005 respectively. Three-year-old, 3- to 5-ft-tall 'FL 86-19' and 'Star' southern highbush blueberry plants were similarly pruned in summer (June 2004) or in winter (Feb. 2005). Pruning removed an estimated 30% to 50% of the canopy and opened the middle, resulting in V-shaped plants in both rabbiteye and southern highbush blueberries. Yield of winter-pruned 'Brightwell' rabbiteye blueberry was lower compared with unpruned plants during both years, but winter-pruned 'Powderblue' rabbiteye blueberry plants produced as much as unpruned plants in 2005. In 'FL 86-19' southern highbush blueberry, plants that were summer pruned in June 2004 produced as much as unpruned plants in 2005, but plants that were winter pruned in Feb. 2005 had lower yields than unpruned plants in 2005. The V45 harvester caused little cane damage on pruned blueberry plants. In rabbiteye blueberries, internal fruit damage and skin splitting was less in V45-harvested fruit than in fruit harvested by a sway harvester and nearly that of hand-harvested fruit. However, in 'FL 86-19' southern highbush blueberry, the V45 harvester detached a lower percentage of blue fruit and excessive amounts of immature and stemmed fruit. These findings suggest that the V45 harvester has the potential to harvest some rabbiteye blueberry cultivars mechanically with fruit quality approaching that of hand-harvested fruit.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 030201120

Download citation: RISBibTeXText


Related references

Assessment of the V45 blueberry harvester on rabbiteye blueberry and southern highbush blueberry pruned to V-shaped canopy. Horttechnology: 1, 130-138, 2008

Hybridization of two southern Appalachian blueberry species with rabbiteye and southern highbush blueberry. 1997

Horizontal and vertical distribution of flower thrips in southern highbush and rabbiteye blueberry plantings, with notes on a new sampling method for thrips inside blueberry flowers. Journal of Economic Entomology 100(5): 1622-1632, 2007

EST-PCR markers developed for highbush blueberry are also useful for genetic fingerprinting and relationship studies in rabbiteye blueberry. Scientia Horticulturae 125(4): 779-784, 2010

Possibility of long term blueberry harvesting with combined highbush and rabbiteye blueberry cultivation in Japan. Acta Horticulturae ( 241): 244-249, 1989

Highbush blueberry and rabbiteye blueberry cultivar tolerance to hexazinone. Proceedings, Southern Weed Science Society, 37th annual meeting: 137, 1984

Photosynthetic Characteristics of Highbush Blueberry and Rabbiteye Blueberry in Phytotron. Horticultural Research 9(4): 455-460, 2010

Yield and fruit quality of mechanically pruned highbush and rabbiteye blueberry bushes. Acta Horticulturae (165): 145-149, 1985

Occurrence of a new race of botryosphaeria corticis on highbush blueberry vaccinium corymbosum and rabbiteye blueberry vaccinium ashei. Plant Disease 68(6): 522-523, 1984

Effects of Blueberry red ringspot virus on Yield and Fruit Maturation in Southern Highbush Blueberry. Plant Disease 100(1): 171-174, 2016

Overexpression of a blueberry-derived CBF gene enhances cold tolerance in a southern highbush blueberry cultivar. Molecular Breeding 30(3): 1313-1323, 2012

Blueberry necrotic ring blotch virus in Southern Highbush Blueberry: Insights into In Planta and In-Field Movement. Plant Disease 100(8): 1575-1579, 2016

Occurrence of blueberry mosaic associated virus in highbush blueberry trees with blueberry mosaic disease in Japan. Journal of General Plant Pathology 82(3): 177-179, 2016

Rabbiteye and southern highbush blueberry response to sawdust mulch. Arkansas Farm Research 40(1): 3, 1991

Resistance to blueberry shoestring virus in southern Highbush and Rabbiteye cultivars. Hortscience 30(7): 1459-1460, 1995