scholarly journals Anthracnose on Southern Highbush Blueberry

EDIS ◽  
2018 ◽  
Vol 2018 (3) ◽  
Author(s):  
Douglas A Phillips ◽  
Maria C. Velez-Climent ◽  
Philip F. Harmon ◽  
Patricio R. Munoz
Keyword(s):  
Plant Pathology ◽  
Fungal Pathogens ◽  
Highbush Blueberry ◽  
Pathology Department ◽  
Wide Range ◽  
Highbush Blueberries ◽  
Southern Highbush

Information contained in this 4-page publication is intended for Florida blueberry growers to use as a guide in the identification of anthracnose, a group of fungal pathogens that affects a wide range of plants, including southern highbush blueberries (SHB). Written by Douglas A. Phillips, Maria C. Velez-Climent, Philip F. Harmon, and Patricio R. Munoz and published by the UF/IFAS Plant Pathology Department, May 2018.https://edis.ifas.ufl.edu/pp337

scholarly journals Botryosphaeria Stem Blight on Southern Highbush Blueberry in Florida

EDIS ◽  
2019 ◽  
Vol 2019 (2) ◽  
Author(s):  
Norma C. Flor ◽  
Douglas A. Phillips ◽  
Philip F. Harmon
Keyword(s):  
United States ◽  
Plant Pathology ◽  
Vascular Disease ◽  
Abiotic Stresses ◽  
Southern United States ◽  
Highbush Blueberry ◽  
Stem Blight ◽  
Pathology Department ◽  
Advanced Stages ◽  
Southern Highbush

Botryosphaeria stem blight is the most common and damaging fungal vascular disease on southern highbush blueberry in the southern United States, causing stem and cane dieback and reductions in yield. Advanced stages of this disease may cause premature plant death, which results in significant replanting costs for growers. Biotic or abiotic stresses from a variety of sources can make plants more susceptible to infection by stem blight pathogens. This new 5-page publication is intended for Florida blueberry growers to use as a guide in the identification and management of Botryosphaeria stem blight on southern highbush blueberry. Written by Norma C. Flor, Douglas A. Phillips, and Philip F. Harmon and published by the UF/IFAS Plant Pathology Department. http://edis.ifas.ufl.edu/pp347

scholarly journals Florida Blueberry Leaf Disease Guide

EDIS ◽  
2019 ◽  
Vol 2019 (3) ◽  
Author(s):  
Douglas A. Phillips ◽  
Norma C. Flor ◽  
Philip F. Harmon
Keyword(s):  
Plant Pathology ◽  
Environmental Conditions ◽  
Production Systems ◽  
Highbush Blueberry ◽  
Basic Information ◽  
Management Options ◽  
Pathology Department ◽  
Leaf Spots ◽  
Southern Highbush ◽  
Leaf Symptoms

Southern highbush blueberry (SHB) cultivars are commercially grown throughout much of Florida, in both deciduous and evergreen production systems. In both systems, leaves can be damaged by many factors including environmental conditions, chemical applications, insects, and diseases. This new 12-page publication of the UF/IFAS Plant Pathology Department includes basic information to assist growers in determining 1) the likely cause (fungal, viral, algal, or bacterial) of leaf symptoms, 2) when specific leaf spots are likely to occur, 3) characteristic symptoms of common leaf problems, and 4) some of the management options that are available. Written by Douglas A. Phillips, Norma C. Flor, and Philip F. Harmon. http://edis.ifas.ufl.edu/pp348

scholarly journals Postharvest Performance of Southern Highbush Blueberry Fruit

1992 ◽  
Vol 2 (3) ◽  
pp. 366-370 ◽  
Author(s):  
Gregory A. Lang ◽  
Jiaxun Tao
Keyword(s):  
Titratable Acidity ◽  
Weight Percent ◽  
Soluble Solids ◽  
Highbush Blueberry ◽  
Fresh Weight ◽  
Solids Concentration ◽  
Early Ripening ◽  
Highbush Blueberries ◽  
Southern Highbush ◽  
Retail Conditions

The postharvest performance of early ripening southern highbush blueberries `Sharpblue' and `Gulfcoast' was evaluated under storage and simulated retail conditions. In general, `Gulfcoast' fruit were 28% heavier than those of `Sharpblue', which had a higher percent soluble solids concentration (SSC) and lower titratable acidity (TA). Quality loss, as indexed by fresh weight, percent decayed fruit, or changes in SSC, pH, or TA, was insignificant in first-harvest fruit of either cultivar when kept in storage (2C) for up to 7 days. Transfer of fruit stored at 2C for 3 days to simulated retail conditions at 21C for 4 days significantly increased fresh weight loss and decay, but not beyond levels deemed unmarketable. Second-harvest fruit were smaller than first-harvest fruit, and those of `Sharpblue' fruit were more prone to decay. However, storage quality of both cultivars was acceptable through 11 days at 2C. Retail quality, as influenced by decay incidence, was acceptable after 3 days at 2C plus 4 days at 21C, but not after 3 days at 2C plus 8 days at 21C. Overall, fruits of these early ripening southern highbush blueberry cultivars performed well under postharvest conditions and are suitable for expanding production of premium fresh blueberries by growers in the Gulf coastal plains.

scholarly journals Effects of CPPU Applications on Southern Highbush Blueberries

HortScience ◽  
2007 ◽  
Vol 42 (7) ◽  
pp. 1612-1615 ◽  
Author(s):  
Jeffrey G. Williamson ◽  
D. Scott NeSmith
Keyword(s):  
Growth Regulator ◽  
Field Experiments ◽  
Fruit Set ◽  
Vaccinium Corymbosum ◽  
Highbush Blueberry ◽  
Berry Size ◽  
Spray Volume ◽  
Highbush Blueberries ◽  
Southern Highbush ◽  
Spray Timing

Greenhouse and field experiments were conducted to determine the effects of the growth regulator N-(2-chloro-4-pyridyl)-N′-phenylurea (CPPU) on fruit set, berry size, and yield of southern highbush blueberry (Vaccinium corymbosum hybrids). The experiments were conducted over a period of several years in Georgia and Florida. CPPU sprays were capable of increasing fruit set and berry weight of southern highbush blueberry, although the responses to CPPU treatment were variable and appeared to be influenced by factors such as rate, spray timing, and cultivar. In Florida, high natural fruit set may have prevented increased fruit set from CPPU. A slight delay in berry maturity was noted in several experiments. Spray burn occurred on several occasions and may be related to factors such as cultivar, rate, spray volume, and use of surfactant.

scholarly journals Calendar for Southern Highbush Blueberry Management in Florida

EDIS ◽  
2020 ◽  
Vol 2020 (2) ◽  
Author(s):  
Doug Phillips ◽  
Jeffrey G. Williamson ◽  
Philip F Harmon ◽  
Oscar E. Liburd ◽  
Peter J. Dittmar
Keyword(s):  
Highbush Blueberry ◽  
Monthly Basis ◽  
General Management ◽  
Highbush Blueberries ◽  
Southern Highbush

Southern highbush blueberries (SHB) are commercially grown throughout Florida in both deciduous and evergreen systems. This calendar addresses general management requirements on a monthly basis for conventional (nonorganic) systems and should be used in coordination with other UF/IFAS EDIS publications. This new 7-page article, published by the UF/IFAS Horticultural Sciences Department, was written by Douglas A. Phillips, Jeffrey G. Williamson, Philip F. Harmon, Oscar E. Liburd, and Peter J. Dittmar.

scholarly journals Botrytis Blossom Blight of Southern Highbush Blueberry

EDIS ◽  
1969 ◽  
Vol 2004 (9) ◽  
Author(s):  
Philip F. Harmon
Keyword(s):  
Plant Pathology ◽  
Information Search ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Publication Date ◽  
Highbush Blueberry ◽  
Original Publication ◽  
University Of Florida ◽  
Extension Agent ◽  
Southern Highbush

Information contained in this publication is intended to help blueberry growers in Florida identify and manage Botrytis blossom blight. For more information, search the EDIS website (http://edis.ifas.ufl.edu) or contact your local UF/IFAS Extension agent (http://ifas.ufl.edu/extension-offices-rec-maps.shtml). This document is PP198, one of a series of the Plant Pathology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date April 2004.  PP198/PP119: Botrytis Blossom Blight of Southern Highbush Blueberry (ufl.edu)

Transcriptome based genetic resources from Rabbiteye and Southern Highbush blueberries

2021 ◽  
pp. 1-13
Author(s):  
Chuyan Wang ◽  
Jie Yu ◽  
Jun Wang ◽  
Jigang Zhang ◽  
Liuqing Yang ◽  
...  
Keyword(s):  
Genetic Resources ◽  
De Novo ◽  
Present Report ◽  
Rapid Development ◽  
Homology Search ◽  
Nucleotide Polymorphisms ◽  
High Quality ◽  
Wide Range ◽  
Highbush Blueberries ◽  
Southern Highbush

BACKGROUND: Blueberry is among the fastest growing fruit crops in the world, which is beneficial to human health and attracts extensive interests. In contrast to its rapid development and utilization, availability of molecular and genetic resources for blueberries are still scarce. OBJECTIVE: In present report, transcriptomic profiling of four widely cultivated varieties of Rabbiteye and Southern Highbush blueberries were characterized to assist the breeding programs. METHODS: Both de novo and reference-based assembly were conducted to generate the genetic resources that can be used in the further functional and breeding studies. RESULTS: De novo and reference-based assembly found average 136,350 and 158,123 non-redundant transcripts, respectively. Average 57,668 de novo assembled transcripts can be functionally annotated by homology search with different databases. We further detected 6,268 polymorphic simple sequence repeats, 566,913 high-quality single nucleotide polymorphisms and 88,662 insertion and deletions among the four varieties with comparison to a recently released reference genome of blueberry. Differentially expressed genes analysis showed that varieties of same species show less differences within species but larger differences between species. CONCLUSIONS: These comprehensive and high-quality genetic resources will contribute to a wide range of genetics and molecular breeding studies in blueberries.

scholarly journals Postharvest Quality of Mechanically and Hand-harvested, Southern Highbush Blueberry Fruit for Fresh Market

2013 ◽  
Vol 23 (4) ◽  
pp. 437-441 ◽  
Author(s):  
Steven A. Sargent ◽  
Adrian D. Berry ◽  
Jeffrey G. Williamson ◽  
James W. Olmstead
Keyword(s):  
Titratable Acidity ◽  
Vaccinium Corymbosum ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Successful Implementation ◽  
Highbush Blueberry ◽  
Fresh Market ◽  
Highbush Blueberries ◽  
Southern Highbush ◽  
Solids Content

Three southern highbush blueberry cultivars (Vaccinium corymbosum hybrids) were mechanically harvested (MH) or hand-harvested (HH) and commercially packed before storage for 14 days at 1 °C in two successive years. MH fruit were softer, had lower ratings for overall appearance, and lost up to 20% more fresh weight than HH fruit after 14 days storage. MH ‘Meadowlark’ had fewer soft fruit (<35%) during storage than either ‘Sweetcrisp’ or ‘Farthing’; however, the latter two cultivars had lower incidences of shrivel and weight loss. Fruit in the 2010 season were more susceptible to bruising than those from the 2009 season; however, soluble solids content (SSC), total titratable acidity (TTA), and ascorbic acid concentration remained constant during storage and between seasons. ‘Meadowlark’ had the highest sugar to acid ratio (25.0). Successful implementation of MH of southern highbush blueberries for fresh market will only be commercially feasible if harvest impacts are further reduced.

scholarly journals Assessment of the V45 Blueberry Harvester on Rabbiteye Blueberry and Southern Highbush Blueberry Pruned to V-Shaped Canopy

2008 ◽  
Vol 18 (1) ◽  
pp. 130-138 ◽  
Author(s):  
Fumiomi Takeda ◽  
Gerard Krewer ◽  
Elvin L. Andrews ◽  
Benjamin Mullinix ◽  
Donald L. Peterson
Keyword(s):  
Fruit Quality ◽  
Weather Conditions ◽  
Lower Percentage ◽  
Highbush Blueberry ◽  
Fresh Market ◽  
Harvesting Systems ◽  
Harvest Efficiency ◽  
Fruit Damage ◽  
Highbush Blueberries ◽  
Southern Highbush

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 × 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.

scholarly journals 701 PB 315 SOUTHERN HIGHBUSH BLUEBERRIES DIFFER IN POSTHARVEST QUALITY

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 533d-533
Author(s):  
P. Perkins-Veazie ◽  
J. K. Collins ◽  
J. R. Clark ◽  
J. Magee
Keyword(s):  
Gulf Coast ◽  
Titratable Acidity ◽  
Postharvest Quality ◽  
Highbush Blueberry ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Total Anthocyanin Content ◽  
Cape Fear ◽  
Highbush Blueberries ◽  
Southern Highbush

Although several new southern highbush blueberry cultivars have been introduced, little is known about their shelflife quality. Five southern highbush cultivars and three advanced selections were harvested from plantings at Clarksville, Ark. and held at 5C, 95% RH for 21 days followed by 1 day at 20C. `Gulf Coast' fruit had the most and `A109' the least weight loss after storage (12% and 6%). `Gulf Coast' fruit were rated softest after storage, Anthocyanin content was highest in `Cape Fear' and lowest in `MS108' (142 and 57 abs. units/g FW, respectively). After storage, total anthocyanin content increased 60% in `Cape Fear' and `O'Neal' fruit. Fruit pH was higher in stored fruit but titratable acidity decreased only in `ONeal', `Sierra', and `G616' fruit. Results indicate that southern highbush blueberries cultivars show great variability in shelflife quality.

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