Source: UNIVERSITY OF GEORGIA submitted to
GEORGIA PEANUT BREEDING AND GENETICS
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
TERMINATED
Funding Source
HATCH
Reporting Frequency
Annual
Accession No.
0199874
Grant No.
(N/A)
Project No.
GEO-00-245
Proposal No.
(N/A)
Multistate No.
(N/A)
Program Code
(N/A)
Project Start Date
Mar 1, 2004
Project End Date
Feb 28, 2015
Grant Year
(N/A)
Project Director
Branch, W.
Recipient Organization
UNIVERSITY OF GEORGIA
200 D.W. BROOKS DR
ATHENS,GA 30602-5016
Performing Department
Crop & Soil Sciences
Non Technical Summary
Improved peanut cultivars are needed with higher-yields, pest-resistance, and greater dollar value return per acre. The Georgia Peanut Breeding and Genetics Program will develop such improved peanut cultivars adapted to the southeastern U. S.
Animal Health Component
(N/A)
Research Effort Categories
Basic
(N/A)
Applied
(N/A)
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2011830108020%
2031830108050%
2041830108010%
2111830108010%
2121830108010%
Knowledge Area
211 - Insects, Mites, and Other Arthropods Affecting Plants; 204 - Plant Product Quality and Utility (Preharvest); 203 - Plant Biological Efficiency and Abiotic Stresses Affecting Plants; 212 - Pathogens and Nematodes Affecting Plants; 201 - Plant Genome, Genetics, and Genetic Mechanisms;

Subject Of Investigation
1830 - Peanut;

Field Of Science
1080 - Genetics;
Goals / Objectives
Develop superior peanut cultivars adapted to the southeastern United States with desirable traits for increasing dollar value, yield, grade, disease resistance, insect resistance, virus resistance, nematode resistance, drought resistance, aflatoxin resistance, better shelling characteristics, longer shelf-life, and enhanced flavor and nutritional qualities. Obtain additional information about qualitative and quantitative traits.
Project Methods
Genetic diversity within germplasm resources will be utilized to identify desirable characteristics. Hybridization followed by selection will be used to combine the good features from the parents into better agronomically suited progeny. Appropriate crosses will also be made to determine inheritance and gene action for various traits.

Progress 03/01/04 to 02/28/15

Outputs
Target Audience:Georgia-13M is a new high-yielding, high-oleic, TSWV-resistant, small-seeded, runner-type peanut cultivar. It is intended for the same market as other high-oleicrunner-types. Seed supply of the Georgia-13M peanut cultivar was limited during 2014, but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Nothing Reported How have the results been disseminated to communities of interest? Nothing Reported What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? 'GEORGIA-13M' is a new high-yielding, high-oleic, TSWV-resistant, small-seeded, runner-type peanut cultivar that was released by the Georgia Agricultural Experiment Station in 2013. It was developed at the University of Georgia, Coastal Plain Experiment Station, Tifton, GA. During three-years (2010-12) averaged over 29 multiple location tests in Georgia, Georgia-13M had significantly less total disease incidence and greater dollar value return per hectare compared to four other high-oleic, runner-type cultivars. Georgia-13M was also found to have a smaller runner seed size as compared to these larger high-oleic, runner-type check cultivars, Florida-07, FloRunTM '107', Georgia-09B, and Georgia-02C. Georgia-13M combines high-yield, TSWV-resistance with the excellent roasted flavor of Georgia Green and the high-oleic trait for longer shelf-life and improved oil quality of peanut and peanut products. Two molecular markers were compared to actual field test results for root-knot nematode resistance. The marker assisted selection (MAS) did not agree with low gall ratings and high pod yield for four of 15 genotypes. Reciprocal cross combinations involving field resistant parents showed one-gene difference between MAS resistant x MAS susceptible in F1 and F2 populations.

Publications

  • Type: Journal Articles Status: Published Year Published: 2014 Citation: Branch, W. D. 2014. Registration of 'Georgia-13M' peanut. J. Plant Reg. 8: 253-256.
  • Type: Journal Articles Status: Published Year Published: 2014 Citation: Branch, W. D., T. B. Brenneman, and G. Hookstra. 2014. Field test results versus marker assisted selection for root-knot nematode resistance in peanut. Peanut Sci. 41: 85-89.
  • Type: Other Status: Published Year Published: 2014 Citation: Branch, W. D. 2014. Uniform Peanut Performance Tests - 2013. UGA/CPES Res. Prog Rept. No. 4-14, pp. 1-25.
  • Type: Other Status: Published Year Published: 2014 Citation: Branch, W. D. and T. B. Brenneman. 2014. Stem rot (white mold) and spotted wilt disease resistance among peanut genotypes. Proc. Amer. Peanut Res. Educ. Soc. 46: 31-32.


Progress 01/01/13 to 09/30/13

Outputs
Target Audience: Georgia-12Y is a new high-yielding, TSWV-resistance and white mold-resistant, medium-seeded, runner-type peanut cultivar. It is intended for the same market as other runner-types. Seed supply of the Georgia-12Y peanut cultivar was limited during 2013, but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Nothing Reported How have the results been disseminated to communities of interest? Nothing Reported What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? ‘GEORGIA-12Y’ is a new high-yielding, TSWV-resistant and white mold-resistant, medium-seeded, runner-type cultivars that was released by the Georgia Agricultural Experiment Stations in 2012. During three-years averaged over multilocation tests in Georgia, Georgia-12Y had significantly higher yield, dollar value return per acre, and number of seed per pound compared to Georgia-10T. However, Georgia-10T has a higher TSMK grade than Georgia-12Y. Georgia-12Y is most similar to Georgia-10T in later maturity. Both should be excellent cultivars for an early-planting date option in the southeast U.S. peanut production area. Field trials without fungicides or insecticides were conducted four consecutive years (2007-10) at the University of Georgia, Tifton Campus. Results from these field tests showed three Georgia cultivars, ‘Georgia-01R’, ‘Georgia-05E’, and ‘Georgia-10T’ consistently produced among the best yields with the highest disease and insect resistance each year. The release of high-oleic, U.S. runner and virginia-type peanut cultivars has been steadily increasing during the past several years. Two planting dates were used to evaluate these high-oleic peanut cultivars. Among the virginia-types, Georgia Hi-O/L, Georgia-05E, and Georgia-08V; and runner-types, Georgia-02C and Georgia-09B consistently had the best performance in both mid-April and mid-May planting date tests.

Publications

  • Type: Journal Articles Status: Published Year Published: 2013 Citation: Branch, W. D. 2013. Registration of Georgia-12Y peanut. J. Plant Reg. 7: 151-153.
  • Type: Journal Articles Status: Published Year Published: 2013 Citation: Branch, W. D. and A. K. Culbreath. 2013. Yield performance and pest resistance among peanut genotypes when grown without fungicides or insecticides. Crop Protection 52: 22-25.
  • Type: Journal Articles Status: Published Year Published: 2013 Citation: Branch, W. D. and A. K. Culbreath. 2013. Spotted wilt disease evaluation among high-oleic peanut cultivars. Online. Plant Health Prog. Doi:10.1094/PHP-2013-0812-01-RS.
  • Type: Other Status: Published Year Published: 2013 Citation: Branch, W.D. 2013. Uniform Peanut Performance Tests  2012. UGA/CPES Res. Prog. Rept. No. 4-13, pp 1-23.
  • Type: Other Status: Published Year Published: 2013 Citation: Branch, W. D., T. B. Brenneman, and G. Hookstra. 2013. Field resistance vs. marker assisted selection for root-knot nematode resistance in peanut. Bad New and Good News. Proc. Amer. Peanut Res. Educ. Soc. 45: 29.
  • Type: Other Status: Published Year Published: 2013 Citation: Beasley, J. P., Jr. 2013. It all came together for record yields in 2012. Proc. Amer. Peanut Res. Educ. Soc. 45: 15.


Progress 01/01/12 to 12/31/12

Outputs
OUTPUTS: Progress Report: 'GEORGIA-11J' is a new high-yielding, high-oleic, TSWV-resistant, large-podded and large-seeded, virginia-type peanut cultivar that was released by the Georgia Agricultural Experiment Stations in 2011. It was developed at the University of Georgia, Coastal Plain Experiment Station, Tifton Campus. Georgia-11J has the high-oleic (O) and low-linoleic (L) fatty acid O/L ratio for improved oil quality. Georgia-11J is similar to another high-oleic virginia-type cultivar 'Georgia-08V' in having low TSWV disease incidence, high pod yield, high total sound mature kernel (TSMK) grade percentage, and high dollar value return per acre. However, during several years averaged over multilocation tests in Georgia, Georgia-11J had significantly higher percent of jumbo pod size and higher percent of extra large kernels (ELK) compared to the check cultivar Georgia-08V. Georgia-11J also has a later maturity, larger plant size, and greater seed weight than Georgia-08V. Results from three-years clearly show new sources of CBR-resistance with Georgia Greener having the most consistent resistance and Tifguard being highly susceptible to CBR. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

Impacts
Outputs: Seed supply of the Georgia-11J peanut cultivar was limited during 2012, but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. Impact: Georgia-11J is a new high-yielding, high-oleic, large-podded, large-seeded, virginia-type peanut cultivar. It is intended for the same market as other viginia-types.

Publications

  • Branch, W. D. 2012. Registration of 'Georgia-11J' peanut. J. Plant Reg. 6: 281-283.
  • Branch, W. D. and T. B. Brenneman. 2012. New sources of cylindrocladium black rot resistance among runner-type peanut cultivars. Peanut Sci. 39: 38-42.
  • Branch, W. D. 2012. Uniform Peanut Performance Tests - 2011. UGA/CPES Res. Prog. Rept. No. 4-12 pp 1-23.
  • Branch, W.D. and A. K. Culbreath. 2012. No-fungicide and no-insecticide yield tests in peanut. Proc. Amer. Peanut Res. Educ. Soc. 44: 19.
  • Beasley, J. P., Jr., D. B. Adams, S. L. Brown, and J. E. Paulk, III. 2012. Thrips injury impact on yield and grade of peanut cultivars. Proc. Amer. Peanut Res. Educ. Soc. 44: 50-51.


Progress 01/01/11 to 12/31/11

Outputs
OUTPUTS: Progress Report: 'GEORGIA-10T is a high-yielding, Tomato spotted wilt virus (TSWV) resistant, large-seeded, runner-type peanut variety that was released by the Georgia Agricultural Experiment Stations in 2010. It was developed at the University of Georgia, Coastal Plain Experiment Station, Tifton, GA. During three-years (2007-09) averaged over 20 multilocation tests in Georgia, Georgia-10T had significantly less mid-season TSWV incidence and late-season total disease (TD) incidence, higher yield, grade, and dollar value return per acre compared to Georgia-01R. However, Georgia-10T is most similar to Georgia-01R in later maturity. During the past two-years (2008-09) at multilocations in Georgia when planted early (mid-April) to increase TSWV disease pressure, Georgia-10T was again found to be among the lowest in TSWV incidence and TD incidence, highest in pod yield, highest in TSMK grade, and highest in dollar value return per acre compared to 18 and 21 other runner genotypes in 2008 and 2009, respectively. Georgia-10T should be an excellent variety for an earlier planting option in the southeast. Inheritance of testa color in peanut has been studied over the past 100 years. These numerous genetic studies have established at least 12 genes controlling basic testa color and five variegated genes within the cultivated peanut. Outputs: Seed supply of the Georgia-10T peanut cultivar was limited during 2011, but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

Impacts
Impact: Georgia-10T is a new high-yielding, high TSWV-resistant, large-seeded, runner-type peanut cultivar. It is intended for the same market as other runner-types.

Publications

  • Branch, W. D. 2011. First 100 years - Inheritance of testa color in peanut (Arachis hypogaea L.). Crop Sci. 51: 1-4.
  • Branch, W. D. and A. K. Culbreath. 2011. Registration of 'Georgia-10T' peanut. J. Plant Reg. 5: 279-281.
  • Branch, W. D. 2011. Uniform Peanut Performance Tests - 2011. UGA/CPES Res. Prog. Rept. No. 4-11, pp 1-25.
  • Branch, W. D. 2011. Utilization of two planting dates to evaluate the agronomic performance of high-oleic peanut cultivars in Georgia. Proc. Amer. Peanut Res. Educ. Soc. 43: 31-32.
  • Beasley, J. P., Jr., G. Vellidis, and W. H. Faircloth. 2011. Peanut maturity determination: past, present, and future. Proc. Amer. Peanut Res. Educ. Soc. 43: 22-23
  • Beasley, J.P., Jr., G.H. Harris, R.S. Tubbs, and J.E. Paulk III. 2011. Response of large-seeded peanut (Arachis hypogaea L.) cultivars to a rain-fed production system. CSSA Abstr. (Available at http://a-c-s.confex.com/crops/2011am/webprogram/Paper65737.html).


Progress 01/01/10 to 12/31/10

Outputs
OUTPUTS: 'Georgia-09B' is a new high-yielding, high-oleic, TSWV-resistant, medium-seeded, runner-type peanut cultivar that was released by the Georgia Agricultural Experiment Station in 2009. It was developed at the University of Georgia, Coastal Plain Experiment Station, Tifton, GA. Georgia-09B originated from the first backcross (BC1) made with 'Georgia Green', as the recurrent parent. During three-years (2006-08) averaged over 27 multilocation tests in Georgia, Georgia-09B had significantly less TSWV disease incidence, higher yield and percent TSMK grade, larger seed size, and greater dollar value return per hectare compared to the check cultivar, Georgia Green. Georgia-09B has also showed significantly higher TSMK percentage than 'Florida-07' and higher dollar value than, 'York', 'AT-3085RO', and 'McCloud', and was found to have a medium runner seed size as compared to the larger high-oleic, runner-type check cultivars, Florida-07, AT-3085RO, and McCloud. Georgia-09B combines the excellent roasted flavor of Georgia Green with the high-oleic trait for longer shelf-life and improved oil quality of peanut and peanut products. The agronomic performance and economic return among several peanut genotypes were evaluated with maximum and minimum production inputs. 'Georgia-06G' and 'Georgia Greener' were both found to have among the highest 3-yr average dollar value return above variable cost in this study. 'Georgia-02C' was also found to have a relatively wide maturity range or harvest window. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

Impacts
Outputs: Seed supply of the Georgia-09B peanut cultivar was limited during 2010, but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. Impacts: Georgia-09B is a new high-yielding, high-oleic, TSWV-resistant, medium-seeded, runner-type peanut cultivar. It is intended for the same market as other runner-types.

Publications

  • Branch, W. D. 2010. Registration of 'Georgia-09B' peanut. J. Plant Reg. 4:175-178.
  • Branch, W. D. and S. M. Fletcher. 2010. Agronomic performance and economic return among peanut genotypes with maximum and minimum production inputs. Peanut Sci. 37:83-91.
  • Branch, W. D., J. P. Bostick, E. J. Williams, and J. P. Beasley, Jr. 2010.Determination of the relative maturity range for the 'Georgia-02C' peanut cultivar. Peanut Sci. 37: 106-109.
  • Branch, W. D. et al. 2010. Uniform Peanut Performance Tests-2009. UGA/CPES Res. Prog. Rept. No. 4-10, pp 1-24.
  • Branch, W. D. and T. B. Brenneman. 2010. New sources of CBR resistance among runner-type peanut cultivars. Proc. Amer. Peanut Res. Educ. Soc. 42: 74.
  • Beasley Jr, J.P., R. S. Tubbs, G. H. Harris Jr., and J. E. Paulk, III. 2010. Helping producers adjust to management of large-seeded runner-type peanut cultivars. Proc. Amer. Peanut Res. Educ. Soc. 42:42.
  • Beasley, J. P., Smith, N. B., Tubbs, R. S. 2010. Economic Analysis of Seeding Rate and Seed Cost of Recently Released Peanut Cultivars. Southern Branch - American Society of Agronomy. a-c-s.confex.com/crops/2010srb/webprogram/Paper57302.html


Progress 01/01/09 to 12/31/09

Outputs
OUTPUTS: Georgia-08V is a new high-yielding, high-oleic, TSWV-resistant, large-seeded, virginia-type peanut cultivar that was released by the Georgia Agricultural Experiment Station in 2008. It was developed at the University of Georgia, Coastal Plain Experiment Station, Tifton, GA. Georgia-08V has the high-oleic (O) and low- linoleic (L) fatty acid ratio for improved oil quality and longer shelf-life. During the past five-years (2004-08) averaged over multilocations tests in Georgia, Georgia-08V had significantly less TSWV disease incidence, higher yield and percent ELK, larger seed size, and greater dollar value return per acre compared to Gregory, Perry, and NC-V 11. Georgia-08V has also showed significantly higher yield, ELK percentage, and dollar value than Georgia Hi-O/L, and was also found to have the largest seed size of all of the virginia-type cultivars tested, including Georgia-05E. The best combination of white mold and TSWV resistance and highest yield over multiple years was consistently found in the recently released medium-maturity, runner-type peanut cultivars: Georgia-07W, Georgia-03L, and AP-3. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

Impacts
Outputs:Seed supply of the Georgia-08V peanut cultivar was limited during 2009, but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. Impact: Georgia-08V is a new high-yielding, high-oleic, TSWV-resistant, large-seeded, virginia-type peanut cultivar. It is intended for the same market as other virginia-types.

Publications

  • Branch, W. D. 2009. Registration of 'Georgia-08V' peanut. J. Plant Reg. 3:143-145.
  • Branch, W. D. and T. B. Brenneman. 2009. Field evaluation for the combination of white mould and tomato spotted wilt disease resistance among peanut genotypes. Crop Protection 28:595-598.
  • Beasley, J. P., Jr. R. S. Tubbs, J. E. Paulk, III, J. E. Hook, and R. T. Yager. 2009. Response of peanut to differing irrigation amounts. Proc. Amer. Peanut Res. Educ. Soc. 41:26-27.
  • Beasley, J. P., R. S. Tubbs, J. E. Paulk, R. C. Kemerait, A. K. Culbreath, and T. B. Brenneman. 2009. How late can we plant peanut Southern Branch Amer. Soc. of Agron. Abstracts. http://crops.confex.com/crops/2009srb/techprogram/P51380.HTM
  • Branch, W. D. et al. 2009. Uniform Peanut Performance Tests-2008. UGA/CPES Res. Prog. Rept. No. 4-09, pp. 1-25.
  • Branch, W. D., J. P. Bostick, E. J. Williams, and J. P. Beasley, Jr. 2009. Utilization of six digging dates to determine the relative maturity for the 'Georgia-02C' peanut cultivar. Proc. Amer. Peanut Res. Educ. Soc. 41: 85-86.


Progress 01/01/08 to 12/31/08

Outputs
OUTPUTS: Progress Report: Georgia-07W is a new high-yielding, TSWV-resistant, white mold-resistant, runner-type peanut cultivar. It was developed at the University of Georgia, Coastal Plain Experiment Station and released in 2007. Georgia-07W has a high level of resistance to both diseases, tomato spotted wilt virus (TSWV) and white mold or stem rot. In multilocation tests conducted in Georgia during the past several years, Georgia-07W was found to be among the lowest in TSWV incidence and total disease incidence, highest in yield, grade, and dollar value return per acre. Results from four-years of no-fungicide and no-insecticide field trials showed that two Georgia cultivars 'Georgia-01R' and 'Georgia-05E' consistently produced the highest yields and had the highest level of disease and insect resistance which would suggest that both should be considered as good candidates for potential use in organic peanut production. Inheritance data from a genetic study indicated that any 2 of 3 duplicate recessive genes osp1, osp2, and osp3 control the one-seeded pod trait in peanut. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

Impacts
Outputs: Seed supply of the Georgia-07W peanut cultivar was limited during 2008 but it should be more available in the following years. Growers interested in this cultivar should contact their local county agent at the state cooperative extension service for more information. Impact: Georgia-07W is a new high-yielding, TSWV-resistant, white mold-resistant, runner-type peanut cultivars. It is intended for the same market as other runner-types. Multiple resistances found in Georgia-01R and Georgia-05E should be useful in reducing production cost.

Publications

  • Branch, W. D., and T. B. Brenneman. 2008. Field test evaluations for combined white mold and tomato spotted wilt disease resistance among peanut genotypes. Proc. Amer. Peanut Res. and Educ. Soc. Abstr. 40:75-76.
  • Beasley, J. P., Jr., R. S. Tubbs, J. E. Paulk, III, R. C. Kemerait, A. K. Culbreath, and T. B. Brenneman. 2008. Response of peanut cultivars to planting date. So. Branch - Ameri. Soc. Of Agron. Abstr. (electronic version).
  • Branch, W. D. 2008. Inheritance of a one-seeded pod trait in peanut. J. Hered. 99:221-222.
  • Branch, W. D. and T. B. Brenneman. 2008. Registration of 'Georgia-07W' peanut. J. Plant Reg. 2:88-91.
  • Branch, W. D. and A. K. Culbreath. 2008. Disease and insect assessment of candidate cultivars for potential use in organic peanut production. Peanut Sci. 35:61-66.
  • Branch, W. D. et al. 2008 Uniform Peanut Performance Tests-2007. UGA/CPES Res. Prog. Rept. No. 4-08, pp. 1-24.
  • Beasley, J. P., Jr., E. J. Williams, J. E. Paulk, III, R. S. Tubbs, and J. A. Baldwin. 2008. Response of Six Peanut Cultivars to Timing of Harvest. Proc. Amer. Peanut Res. and Educ. Soc. Abstr. 40:54.


Progress 01/01/07 to 12/31/07

Outputs
Georgia-06G and Georgia Greener are two new high-yielding, TSWV-resistant, runner-type peanut cultivars. Both were developed at the University of Georgia, Coastal Plain Experiment Station and released in 2006. Georgia-06G and Georgia Greener have a high level or resistance to spotted wilt disease caused by tomato spotted wilt virus (TSWV). In multilocation tests conducted in Georgia during the past several years, Georgia-06G and Georgia Greener were found to be among the lowest in TSWV incidence and total disease incidence, highest in pod yield, TSMK grade, and dollar value return per acre compared to all of the other runner-types tested each year. Georgia-06G is a large-seeded runner-type peanut cultivar; whereas, Georgia Greener is more of a regular seed size runner-type cultivar. Irrigation of agricultural crops is continually improving, and the latest information is now available for peanut irrigation. It includes the newest technologies and strategies from around the world on irrigating agronomic crops.

Impacts
Georgia-06G and Georgia Greener are two new high-yielding, TSWV-resistant, runner-type peanut cultivars. Each are intended for the same market as other runner-types. Georgia-06G is a large-seeded, runner-type peanut cultivar; whereas, Georgia Greener is more of a regular seed size runner-type cultivar. Both have a high level of resistance to spotted wilt disease caused by tomato spotted wilt virus (TSWV).

Publications

  • Branch, W. D. 2007. Registration of 'Georgia-06G' peanut. J. Plant Reg. 1:120.
  • Branch, W. D. 2007. Registration of 'Georgia Greener' peanut. J. Plant Reg. 1:121.
  • Beasley, J. P., Jr. 2007. Irrigation of peanut. Pp. 304-312. In Lascano, R. J. and Sojka, R. E. (ed.) Irrigation of Agricultural Crops, 2nd Edition Amer. Soc. Agron. Monograph Series, Madison, WI.
  • Branch, W. D. and Fletcher, S. M. 2007. Non-irrigated minimum-input peanut yield tests. Proc. Amer. Peanut Res. Educ. Soc. 39:24.
  • Beasley, J. P. Jr., Brenneman, T. B., Culbreath, A. K., and Kemerait, R. C., Jr. 2007. Planting date effect on disease severity and peanut yield. Proc. Amer. Peanut Res. Educ. Soc. 39:23.
  • Branch, W. D. etal. 2007. Uniform Peanut Performance Tests-2006. UGA/CPES Res. Prog. Rept. No. 4-07, pp. 1-25.


Progress 01/01/06 to 12/31/06

Outputs
Georgia-05E is a new high-oleic, multiple-pest-resistant, virginia-type peanut cultivar. It was developed at the University of Georgia, Coastal Plain Experiment Station and released in 2005. Georgia-05E has the high-oleic and low-linoleic fatty acid oil chemistry for improved oil quality and longer shelf-life. It is intended for the same market as other virginia-types. In several multilocation tests conducted in Georgia during the past four years, Georgia-05E was found to be significantly lower in disease incidence and significantly higher in yield, TSMK grade, ELK grade, and dollar value return per hectare compared to Georgia Hi-O/L, Perry, Gregory, NC-V 11, and Wilson. Georgia-05E also has a later maturity compared to these other virginia-types. During the past several years, abnormal plants with course stems, thick leaves, and an occasional single-seeded pod have been found within different peanut cultivars and advanced breeding lines. Relative DNA content as measured by flow cytometry showed that these abnormal plants were autooctoploids and had about twice the DNA content when compared with the normal allotetraploid cultivated peanut.

Impacts
Georgia-05E is a new high-yielding, high-oleic, multiple-pest-resistant, virginia-type peanut cultivar. It is intended for the same market as other virginia-types. These other virginia-type cultivars are all very susceptible to both early and late leafspots; whereas, Georgia-05E has shown leafspot resistance and tomato spotted wilt virus (TSWV) resistance comparable to some of the more disease resistant runner-type cultivars.

Publications

  • Branch, W. D. 2006. Registration of 'Georgia-05E' peanut. Crop Sci. 46:2305.
  • Branch, W. D. 2006. Registration of Lutescent-Leaf peanut genetic stock. Crop Sci. 46: 2340-2341.
  • Branch, W. D. and W. W. Hanna. 2006. Natural occurrence of autopolyploidy within the allotetraploid-cultivated peanut. Plant Breeding 125:311-312.
  • Branch, W. D. and A. K. Culbreath. 2006. Candidate cultivars for organic peanut production. Proc. Amer. Peanut Res. Educ. Soc. 38: (in press).
  • Branch, W. D. etal. 2006. Uniform Peanut Performance Tests-2005. UGA/CPES Res. Prog. Rept. No. 4-06, pp. 1-25.
  • Branch, W. D., A. E. Coy, and J. L. Day. 2006. 2005 Georgia peanut breeding lines and variety trials. In W. H. Faircloth and N. B. Smith. (ed.) 2005 Georgia Peanut Res. Ext. Rept. UGA/USDA Res. Ext. Publ. No. 2006: (in press).


Progress 01/01/05 to 12/31/05

Outputs
Georgia-04S is a new high-oleic spanish-type peanut cultivar. It was developed at the University of Georgia, Coastal Plain Experiment Station and released in 2004. It is intended for the same confectionary or candy market as other spanish-types. However, Georgia-04S would also be excellent for the roasted or peanut butter trade as well. Georgia-04S has pod and seed size similar to other spanish market type cultivars. It has a similar growth habit and maturity as Georgia Browne, the non-oleic recurrent parent. Both Georgia-04S and Georgia Browne have shown a significantly higher yield, TSMK grade, and dollar value return compared to all other leading spanish cultivars during the past five years in Georgia. In a recent study, significant genotype x seeding rate interaction was found among TSWV-resistant runner-type peanut cultivars which indicates that not all cultivars performed the same at different seeding rates. A good example was the TSWV-resistant, runner-type peanut cultivar Georgia Green. It performed subpar at the below normal or lowest seeding rate; whereas, at the highest rate, Georgia Green and Georgia-01R produced the highest pod yields and dollar value returns among all of the runner cultivars.

Impacts
Georgia-04S is a new high-oleic, high-yielding, spanish-type peanut cultivar. It is intended for the same confectionary or candy market as other spanish-types. Georgia-04S has pod and seed size similar to other spanish-type cultivars, however it has similar disease resistance, growth habit, and maturity as Georgia Browne.

Publications

  • Branch, W. D. 2005. Registration of 'Georgia-04S' peanut. Crop Sci. 45:1653-1654.
  • Branch, W. D., J. A. Baldwin, and A. K. Culbreath. 2003. Genotype x seeding rate interaction among TSWV-resistant, runner-type peanut cultivars. Peanut Sci. 30: 108-111.
  • Branch, W. D., W. C. Johnson III, and J. W. Todd. 2005. Occurrence and inheritance of a puckered-leaf shape in peanut. Peanut Sci. 32: (in press).
  • Branch, W. D., T. B. Brenneman, and A. K. Culbreath. 2005. Utilization of early-planted yield test to evaluate for TSWV-resistance among peanut genotypes in Georgia. Proc. Amer. Peanut Res. Educ. Soc. 37: (in press).
  • Branch, W. D. 2005. Uniform Peanut Performance Tests-2004. UGA/CPES Res. Prog. Rept. No. 4-05, pp. 1-24.
  • Branch, W. D., A. E. Coy, and J. L. Day. 2005. 2004 Georgia peanut breeding lines and variety trials. In W. H. Faircloth and J. P. Beasley Jr. (ed.) 2004 Georgia Peanut Res. Ext. Rept. UGA/USDA Res-Ext. Publ. No. 2005: 25-35.


Progress 03/01/04 to 12/31/04

Outputs
Georgia-03L is a new large-podded runner-type peanut cultivar. It was developed at the University of Georgia, Coastal Plain Experiment Station and released in 2003. Georgia-03L has similar maturity as Georgia Green with pods and seed significantly larger. Georgia-03L also has a high level of resistance to tomato spotted wilt virus (TSWV) and moderate resistance to soilborne diseases: white mold or stem rot and CBR. Georgia-03L is highly productive and was found to be higher in yield than AP-3, Carver, Andru II, and ANorden. It has very good stability and a wide range of adaptability throughout the major peanut production areas. Two other recently released runner-type cultivars Georgia-01R and Georgia-02C were found to consistently outperform the check cultivars each and every year under test regimes of reduced input production practices and without irrigation. Both Georgia-01R and Georiga-02C also had comparable or significantly better tomato spotted wilt virus (TSWV) resistance at midseason and total disease (TD) resistance at harvest than the best TSWV-resistant check cultivars.

Impacts
Georgia-03L is a new large-podded, high-yielding, runner-type peanut cultivar. It has excellent tomato spotted wilt resistance as well as moderate resistance to soilborne diseases. It also has very good stability and a wide range of adaptability throughout the major peanut production areas.

Publications

  • Branch, W.D. 2004. Registration of 'Georgia-03L' peanut. Crop Sci. 44:1485-1486.
  • Branch, W. D. and S. M. Fletcher. 2004. Evaluation of advanced Georgia peanut breeding lines with reduced-inputs and without irrigation. Crop Protection 23: 1085-1088.
  • Branch, W. D. and J. W. Todd. 2004. Field screening for insect resistance among peanut genotypes. Proc. Amer. Peanut Res. Educ. Soc. 36: 20.
  • Branch, W. D. 2004. Uniform Peanut Performance Tests-2003. UGA/CPES Res. Prog. Rept. No. 4-04, pp. 1-25.
  • Branch, W. D., A. E. Coy, and J. L. Day. 2004. 2003 Georgia peanut breeding lines and variety trials. In T. B. Brenneman and C. L. Butts (ed.) 2003 Georgia Peanut Res. Ext. Rept. UGA/CPES Res-Ext. Publ. No. 2004: 41-48.
  • Branch, W.D. 2004. 'Georgia-01R' A new high-yielding runner-type peanut variety with multiple pest resistance. Southeastern Peanut Farmer (Tifton, GA) 42 (1):9.