`VERNON': A NEW EARLY SEASON RABBITEYE BLUEBERRY CULTIVAR

Released in 2004 by the University of Georgia and U.S. Dept. of Agriculture, `Vernon' is an early season rabbiteye blueberry (Vaccinium ashei Reade), having large fruit size, good yields and excellent plant vigor. `Vernon', tested as T-584, was selected in 1990 at the Coastal Plain Experiment Station in Tifton, Ga. from a cross of T-23 × T-260. `Vernon' fruit ripens early with the cultivar Climax in south Georgia, and few days before `Premier'; however, `Vernon' flowers 5 to 10 days after the standard cultivars. On average over a 6 year period, `Vernon' yielded 5.8 kg/plant per season, compared to 3.1 and 4.5 kg/plant for `Climax' and `Premier', respectively. Berry stem scar, color, firmness, and flavor of the new cultivar are good to excellent. Berry size of `Vernon' is considerably large, averaging 2.05 g/berry over 4 locations in 2003, compared to only an average weight of 1.56 g/berry for `Climax'. `Vernon' berries are firmer than `Premier'. Propagation of the new cultivar is easily accomplished from softwood cuttings. Chill hour requirement is estimated to be in the range of 500 to 550 hours (<7 °C). `Vernon' should be planted with other rabbiteye blueberry cultivars with a similar time of bloom to provide optimum pollination. Propagation rights are controlled by Georgia Seed Development Commission, 2420 S. Milledge Avenue, Athens, GA 30606 (for more information go to www.gsdc.com).

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`REBEL': A NEW EARLY RIPENING SOUTHERN HIGHBUSH BLUEBERRY CULTIVAR

HortScience ◽

10.21273/hortsci.41.3.512e ◽

2006 ◽

Vol 41 (3) ◽

pp. 512E-512

Author(s):

D. Scott NeSmith

Keyword(s):

Seed Development ◽

Highbush Blueberry ◽

Blue Color ◽

Similar Time ◽

Light Blue ◽

University Of Georgia ◽

Early Ripening ◽

Trial Basis ◽

Southern Highbush ◽

The University

A new southern highbush blueberry cultivar named `Rebel' was released in 2005 by The University of Georgia. It is a very early season cultivar with large fruit having a medium to light blue color, and a small, dry picking scar. `Rebel' berry firmness is good, while flavor is only average. The new cultivar flowers 3 to 4 days before `Star' and ripens 6 to 9 days before `Star' in south and middle Georgia. `Rebel' plants are highly vigorous, very precocious and have a spreading bush habit with a medium crown. Yield has been similar to or greater than `Star' in south Georgia. Leafing has been excellent, even following mild winters. Rebel has an estimated chill requirement of 400 to 450 hours (<7 °C). Propagation is very easily accomplished using softwood cuttings. Plants of `Rebel' are self-fertile to a degree, but should be planted with other southern highbush blueberry cultivars with a similar time of bloom for cross-pollination (`Emerald' and `Star' suggested). `Rebel' is new, so planting on a trial basis is recommended. `Rebel' requires a license to propagate. For licensing information and/or a list of licensed propagators, contact the Georgia Seed Development Commission, 2420 S. Milledge Avenue, Athens, GA 30606; or visit their web-site at www.gsdc.com.

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`CAMELLIA': A NEW MIDSEASON SOUTHERN HIGHBUSH BLUEBERRY CULTIVAR

HortScience ◽

10.21273/hortsci.41.3.512f ◽

2006 ◽

Vol 41 (3) ◽

pp. 512F-513

Author(s):

D. Scott NeSmith ◽

Arlen D. Draper

Keyword(s):

Coastal Plain ◽

Vaccinium Corymbosum ◽

Highbush Blueberry ◽

Blue Color ◽

Similar Time ◽

Light Blue ◽

University Of Georgia ◽

Trial Basis ◽

Southern Highbush ◽

The University

A new southern highbush blueberry cultivar named `Camellia' was released in 2005 by The University of Georgia and the USDA–ARS. `Camellia' is a hybrid containing mostly Vaccinium corymbosum and a small amount of V. darrowi. The new cultivar was selected in 1996 at the Coastal Plain Experiment Station in Tifton, Ga. from a cross of MS-122 × MS-6, and was tested as TH-621 in plantings at Alapaha, Ga. beginning in 1998. `Camellia' has an estimated chill requirement of 450 to 500 hours (<7 °C). It is an early- to mid-season cultivar, having berries that are large, with a very light blue color, and a small, dry picking scar. Berry firmness is good and flavor is very good. `Camellia' flowers 5 to 8 days after `Star' and `O'Neal' in south Georgia, and ripens 4 to 9 days after `Star', and with `O'Neal'. Plants are highly vigorous, with strong cane growth and an open, upright bush habit and a narrow crown. Yields have been similar to `Star' and greater than `O'Neal'. `Camellia' should be planted with other southern highbush blueberry cultivars with a similar time of bloom for cross-pollination (`Star' and `O'Neal' suggested). It is recommended on a trial basis at this time. `Camellia' requires a license to propagate. For licensing information and/or a list of licensed propagators, contact the Georgia Seed Development Commission, 2420 S. Milledge Avenue, Athens, GA 30606; or visit their website at www.gsdc.com.

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Evaluation of parental raspberry breeding forms for fruit size

Horticulture and viticulture ◽

10.31676/0235-2591-2021-1-16-22 ◽

2021 ◽

pp. 16-22

Author(s):

M. A. Podgaetskiy ◽

S. N. Evdokimenko

Keyword(s):

Objective Assessment ◽

Fruit Size ◽

Weather Conditions ◽

Base Station ◽

Average Weight ◽

Trial Period ◽

Parental Form ◽

Breeding Sites ◽

Berry Weight ◽

Berry Size

Te article tackles the feasibility of improving the raspberry fruit size as an important production and marketability factor. Te trials included 22 domestic and foreign cultivars, 11 selected forms of raspberry, as well as ten cross-breeding combinations and three open-pollinated forms. Te assessment of parental forms and hybrids was carried out at the collection and breeding sites of the Kokino base station of Federal Horticultural Center for Breeding, Agrotechnology and Nursery during 2016-2020. Fruits were harvested from regular cultivar bushes every 2 days in triplicate. Te average weight was determined per 100 berries in each replicate. Cultivars and hybrids were divided into three groups, small- (3.6 g). Te average berry weight in hybrid nurslings was estimated per plant. Each plant was sampled with 30 berries. Weighing was performed with an SCC-750 electronic scales device. Te weather conditions of the trial period were contrast, allowing a more objective assessment of the collection and breeding raspberry material by berry weight. Te following cultivars were identiﬁed as the sources of improved berry size in the parental form trials: Maria, Cascade Delight, Fenomen, Lavina, Cowichan, Patricia, Laczka, Glen Ample and selections 2-115-1, 8-13-2, 18-11-3, 18-11-2, 2-90-2 and 2-90-3. Tese forms had an average trial-period berry weight of 3.7-4.3 g least aﬀected by weather conditions. Te inspection of hybrids revealed the best parental forms for obtaining new raspberry cultivars with an improved berry weight: Maria, Fenomen, Lavina, Cowichan, Glen Ample and the selected form 8-13-2. Te promising cross-combinations are: 2-12-1 x Fenomen, Lavina x Ulybka, 8-13-2 x Peresvet, as well as the open-pollinated oﬀspring of Glen Ample, Cowichan and Maria. Large-fruited genotypes isolated in these lineages will be used in further breeding to increase the fruit size in raspberry.

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History of Bermudagrass Turfgrass Breeding Research in Tifton, GA

HortScience ◽

10.21273/hortsci13257-18 ◽

2018 ◽

Vol 53 (11) ◽

pp. 1560-1561 ◽

Cited By ~ 2

Author(s):

Lisa L. Baxter ◽

Brian M. Schwartz

Keyword(s):

Coastal Plain ◽

Agricultural Research ◽

Department Of Agriculture ◽

University Of Georgia ◽

Breeding Research ◽

History Of ◽

The University ◽

Warm Temperate ◽

Agricultural Research Service ◽

The U.S

Bermudagrass (Cynodon spp.) is the foundation of the turfgrass industry in most tropical and warm-temperate regions. Development of bermudagrass as a turfgrass began in the early 1900s. Many of the cultivars commercially available today have been cooperatively released by the U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) and the University of Georgia at the Coastal Plain Experiment Station in Tifton, GA.

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Differences in Cell Number Facilitate Fruit Size Variation in Rabbiteye Blueberry Genotypes

Journal of the American Society for Horticultural Science ◽

10.21273/jashs.136.1.10 ◽

2011 ◽

Vol 136 (1) ◽

pp. 10-15 ◽

Cited By ~ 18

Author(s):

Lisa Klima Johnson ◽

Anish Malladi ◽

D. Scott NeSmith

Keyword(s):

Fruit Development ◽

Fruit Size ◽

Size Variation ◽

Cell Number ◽

Fruit Weight ◽

Cell Area ◽

Vaccinium Ashei ◽

Cell Production ◽

University Of Georgia ◽

Fruit Diameter

Fruit size is a valuable commercial trait in blueberry. The cellular basis of variation in fruit size among rabbiteye blueberry (Vaccinium ashei) genotypes was investigated. Twenty genotypes, including cultivars and advanced selections from the University of Georgia blueberry breeding program, were analyzed. Among the 20 genotypes, fruit weight and fruit diameter varied by over threefold and 1.6-fold, respectively. Regression analysis indicated a linear relationship between fruit weight and fruit diameter (R2 = 0.97, P < 0.001), suggesting that fruit diameter is a good predictor of fruit weight. Among the 20 genotypes, mesocarp cell number and cell area varied by almost 2.5-fold and 1.5-fold, respectively. Although fruit diameter and cell number were significantly related (R2 = 0.79, P < 0.001), no relationship could be established between fruit diameter and cell area. These data indicate that variation in fruit size among rabbiteye blueberry genotypes is primarily facilitated by variation in cell number. Two small and two large fruit size genotypes were further analyzed. Differences in cell number among some of these genotypes were apparent at bloom suggesting that cell production before bloom is an important mechanism contributing to variation in final cell number. Differences in final cell number among other genotypes were manifested during fruit development, indicating that cell production during fruit development was also instrumental in determining variation in final cell number. This study suggests that fruit size variation in rabbiteye blueberry genotypes is determined by mechanisms that regulate cell production before bloom and during fruit development.

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078 REDUCING AGRICULTURAL POLLUTION WITH RIPARIAN BUFFER SYSTEMS

HortScience ◽

10.21273/hortsci.29.5.439c ◽

1994 ◽

Vol 29 (5) ◽

pp. 439c-439

Author(s):

Lee S. Altier ◽

R. Richard Lowrance ◽

R.G. Williams

Keyword(s):

Nonpoint Source Pollution ◽

Coastal Plain ◽

System Management ◽

Buffer System ◽

Hydrologic Processes ◽

University Of Georgia ◽

The University ◽

Forested Buffer ◽

Careful Management

Even with careful management, within-field practices are often insufficient to prevent considerable nonpoint source pollution to adjacent streams. Water resources suffer from sediment, N, and P transported in surface runoff and N in subsurface movement when fields are cultivated up to stream banks. The maintainance of forested buffer systems between farmland and streams has been proposed as a remedy for mitigating pollution. Chemical movement through such a buffer system has been monitored for several years at the University of Georgia Coastal Plain Experiment Station. With the aid of that data, the Riparian Ecosystem Management Model is being developed to simulate biological, chemical, and hydrologic processes in order to evaluate the effectiveness of buffer system management for reducing the influx of pollutants to streams. The model allows an examination of the long-term potential of a buffer system under changing environmental conditions.

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Control of Stink Bugs and Velvetbean Caterpillars on Georgia Soybeans, 1994

Arthropod Management Tests ◽

10.1093/amt/20.1.240 ◽

1995 ◽

Vol 20 (1) ◽

pp. 240-241

Author(s):

Robert M. McPherson ◽

Amy L. Lambert ◽

J. Delano Taylor

Keyword(s):

Coastal Plain ◽

Growth Stage ◽

Stink Bugs ◽

Single Row ◽

University Of Georgia ◽

Testing Period ◽

Experiment Station ◽

The University ◽

Range Test

Abstract The efficacy of 14 insecticides for control of velvetbean caterpillars and stink bugs was evaluated at the University of Georgia Coastal Plain Experiment Station, Tifton, GA. The insecticides were foliar-applied on 31 Aug on ‘Cook’ soybeans planted on 17 May. Individual plots were 4 rows wide × 50 ft long with alleys 6 ft wide on each end and 2 border rows on each side, arranged in a RCBD with 4 replications. Each spray concentrate was applied with a CO2-powered backpack sprayer with 4, TX-12 nozzles on a 6 ft boom (2 nozzles per row) at 40 psi that delivered 17.6 gal/acre. Each plot was sampled prior to treatment and on 2, 7, 14 and 21 DAT, by taking a 20-sweep sample (15-inch diam net) from a single row. Soybeans were in the R5 growth stage (pods rilling with seeds) during the testing period. At 28 DAT, the percent defoliation was visually estimated for all plots. The data were subjected to ANOVA and Duncan’s multiple range test.

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New Source of Leafhopper Resistance in Peanut

Journal of Entomological Science ◽

10.18474/0749-8004-41.3.198 ◽

2006 ◽

Vol 41 (3) ◽

pp. 198-201 ◽

Cited By ~ 1

Author(s):

William D. Branch ◽

James W. Todd

Keyword(s):

Arachis Hypogaea ◽

Coastal Plain ◽

Field Trials ◽

Potato Leafhopper ◽

Breeding Lines ◽

University Of Georgia ◽

Arachis Hypogaea L ◽

Wide Range ◽

The University ◽

Postemergence Herbicides

Field screening for potato leafhopper, Empoasca fabae Harris, resistance among peanut, Arachis hypogaea L., genotypes were conducted for three consecutive years (2001, 2002, and 2003) at the University of Georgia, Coastal Plain Experiment Station in Tifton, GA. Irrigated field trials were used for evaluations, and plants were grown without any pesticides other than preplant and occasional postemergence herbicides. Results from these replicated tests showed a wide-range of leafhopper damage. During each of the 3 yrs, ‘Georgia-01R’ consistently had the lowest leafhopper damage rating of all genotypes tested. Likewise, each year ‘Georgia Hi-O/L’ had the highest leafhopper damage rating. ‘Georgia Green’ and other cultivars and breeding lines were intermediate between Georgia-01R and Georgia Hi-O/L for leafhopper ratings. These field trials confirmed the multiple-pest resistant runner-type cultivar Georgia-01R as a new source of leafhopper resistance in peanut.

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