2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 1 2 ALABAMA AGRICULTURAL EXPERIMENT STATION Table of Contents Page Introduction ....................................................................................................................................... 3 Production ........................................................................................................................................ 3 Discussion ........................................................................................................................................ 3 Size and Grade Data Terms ................................................................................................................ 4 Acknowledgments ............................................................................................................................. 4 Wiregrass Research and Extension Center, Headland, Alabama ........................................................... Yield of Irrigated Peanut Varieties, 2000 ................................................................................... 5 Two-Year Average Yield of Irrigated Peanut Varieties, 1999-2000 ............................................ 5 Three-Year Average Yield of Irrigated Peanut Varieties, 1998-2000 .......................................... 6 Average Size and Grade on Irrigated Peanut Varieties, 2000 ..................................................... 6 Two-Year Average Size and Grade on Irrigated Peanut Varieties,1999-2000 ............................. 7 Three-Year Average Size and Grade on Irrigated Peanut Varieties, 1998-2000 ......................... 7 Average Shelled Seed Size Distribution of Irrigated Peanut Varieties, 1998-2000 ..................... 8 Occurrence of Tomato Spotted Wilt Virus Hits in the Irrigated Peanut Variety Test, 2000 ......... 9 Occurrence of White Mold Hits in the Irrigated Peanut Variety Test, 2000 .............................. 10 Occurrence of Leafspot in the Irrigated Peanut Variety Test, 2000 .......................................... 11 Yield of Dryland Peanut Varieties, 2000 ................................................................................. 12 Average Size and Grade on Dryland Peanut Varieties, 2000 .................................................... 12 Yield of Late-planted Dryland Peanut Varieties, 2000 ............................................................. 12 Average Size and Grade on Late-planted Dryland Peanut Varieties, 2000 ............................... 12 Planting Rate Chart ......................................................................................................................... 13 Tests Duration Daily Rainfall Data Recorded, 2000 ......................................................................... 14 Tests Duration Daily Maximum Temperatures Recorded, 2000 ........................................................ 15 Descriptions of 2000 Peanut Variety Test Entries ............................................................................. 16 Sources of Seed ............................................................................................................................... 19 Information contained herein is available to all persons regardless of race, color, sex, or national origin. 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 3 The 2000 Alabama Performance Comparison of Peanut Varieties James P. Bostick, Larry W. Wells, and Brian E. Gamble1 INTRODUCTION The number of peanut varieties available to Alabama growers has increased in recent years, thus placing greater need for unbiased performance data regarding varietal selection for production. PRODUCTION The 2000 tests were conducted at the Wiregrass Research and Extension Center in Headland, AL. Prior to 2000, comparisons were made only under irrigation. During 2000, 21 entries were evaluated under irrigation, 10 entries were evaluated dryland, and 4 entries were evaluated late-planted dryland. The late-planted dryland test was conducted as a result of the unseasonably hot, dry conditions that prevailed across the Southeast. Stand establishment in many dryland commercial production fields did not occur until after mid-June rainfall. The experimental design for each test was a randomized complete block consisting of two-row plots, 20 feet long, replicated four times. The irrigated test was planted on May 3, the dryland test was planted on May 17, and the lateplanted dryland test was planted on June 16. All tests were planted with a cone planter at a rate of six seed per foot of row. Recommended agronomic practices were followed regarding fertility, disease, insect, and weed control in all tests. The irrigated test entries considered to be earlier than Florunner in maturity were dug on September 15, 2000. These entries included AgraTech 1-1, AgraTech VC-2, Andru 93, NC 7, VA 93B, VA-C92, and ViruGard. All other entries except C99R, Florida MDR 98, and Southern Runner were dug on September 12, 2000. C99R, Florida MDR 98, and Southern Runner, considered to be later in maturity, were dug on September 28, 2000. The dryland test entries considered to be earlier than Florunner were dug on October 17, 2000. These entries included AgraTech 1-1 and ViruGard. All other entries except C99R, Florida MDR 98, and Southern Runner were dug on October 23, 2000. C99R, Florida MDR 98, and Southern Runner, considered to be later in maturity, were dug on November 2, 2000. In the late-planted dryland test, late fall weather conditions were not favorable for varietal maturity differences. All entries were dug on November 15, 2000. Information concerning relative maturity for all test entries was provided by the plant breeder responsible for developing the variety. DISCUSSION The information presented here represents data from three years at a single location. Performance comparisons among varieties should be drawn judiciously under these circumstances. Yield and disease occurrence data have been subjected to an analysis of variance. This statistical evaluation determined the overall averages for all varieties, coefficient of variation (CV), and the least significant differences (LSD). The LSD values represent the difference reBostick is an adjunct professor of the Auburn University Department of Agronomy and Soils and executive secretary of the Alabama Crop Improvement Association; Wells is superintendent and Gamble is assistant superintendent of the Wiregrass Research and Extension Center. 1 4 ALABAMA AGRICULTURAL EXPERIMENT STATION quired for the averages of two varieties to be considered statistically different. The (.05) following the LSD value indicates that the LSD was calculated at the 95 percent level of confidence. The CV, which is expressed as a percentage, is a relative measure of variation within a set of data. CV values of 8 to 12 percent are generally considered acceptable for yield data of agronomic crops. CV values in the disease data are considerably higher than this. However, this is expected due to random occurrence of disease in the field. SIZE AND GRADE DATA TERMS Data were collected and averaged on samples from replicates II, III, and IV for size and grade. The samples were graded following Federal-State Inspection Service procedures for grading farmer-stock peanuts. Terms Used SMKRS count/lb. (number per pound of sound mature kernels riding screen)–Number of sound whole mature kernels from 1 pound of the shelled sample riding a 15/64 x 1-inch slotted screen or a 16/64 x 3/4-inch slotted screen for Virginia or Runner varieties, respectively. Pct. SMKRS (sound mature kernels riding screen)–Portion of shelled sample as described above. Pct. SS (sound splits)–Portion of shelled sample split or broken but not damaged. Pct. TSMK (total sound mature kernels)–Portion of the shelled sample comprised of sound mature kernels plus sound splits. Pct. OK (other kernels)–Kernels that pass through a 15/64 x 1-inch slotted screen or 16/64 x 3/4-inch slotted screen for Virginia or Runner varieties, respectively. Pct. DK (damaged kernels)–Kernels that are moldy, decayed, affected by insects or weather conditions resulting in seed coat or cotyledon discoloration or deterioration. Pct. TK (total kernels)–All shelled sample kernels including TSMK, OK, and DK. Pct. Hulls–All hulls from the shelled sample. +21.0 (Generally considered as the Jumbo commercial grade)–Portion of SMKRS riding a 21/64 x 3/4-inch slotted screen. -21.0 +18.0 (Generally considered as the Medium commercial grade)–Portion of the SMKRS falling through a 21/64 x 3/4-inch slotted screen and riding a 18/64 x 3/4-inch slotted screen. -18.0+ 16.0 (Generally considered as the No.1 commercial grade)–Portion of the SMKRS falling through a 18/64 x 3/4-inch slotted screen and riding a 16/64 x 3/4-inch slotted screen. ACKNOWLEDGMENTS The authors express appreciation to Austin K. Hagan, Professor of Entomology and Plant Pathology, for providing the disease evaluation data and to Glenn Wehtje, Professor of Agronomy and Soils, for the statistical analysis. Appreciation is also expressed to Sara Casey and Larry Savelle, Wiregrass Research and Extension Center, for their cooperation. 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 5 AT THE TABLE 1. YIELD OF IRRIGATED PEANUT VARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 2000 Yield lb/a Variety or line Yield lb/a Variety (R) ViruGard .................................................... 5,037 (R) Georgia Hi-O/L .......................................... 4,783 (V) Gregory ...................................................... 4,737 (R) AgraTech 1-1 ............................................. 4,565 (R) Georgia Green ............................................ 4,538 (V) VA-C 92R .................................................. 4,483 (R) C99R .......................................................... 4,447 (V) NC-V11 ..................................................... 4,420 (R) AgraTech 201 ............................................. 4,283 (V) AgraTech VC2 ........................................... 4,175 (R) Florida MDR 98 ......................................... 4,075 (V) NC 7 .......................................................... 3,920 (V) VA 93B ..................................................... 3,920 (R) Georgia Bold ............................................. 3,911 (R) Southern Runner ........................................ 3,866 (V) VA 98R ..................................................... 3,802 (V) NC 12C ..................................................... 3,721 (R) Andru 93 ................................................... 3,594 (R) GK 7 High Oleic ........................................ 3,312 (R) SunOleic 97R ............................................ 3,194 (R) Florunner ................................................... 2,523 Overall Average ........................................................................................................................................... 4,053 CV (%) ........................................................................................................................................................... 12.3 LSD (.05) ......................................................................................................................................................................... 703 AT THE TABLE 2. TWO-YEAR AVERAGE YIELD OF IRRIGATED PEANUT VARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 1999-2000 1999 lb/a 2000 lb/a 5,037 4,447 4,538 4,737 4,483 4,175 4,565 4,420 3,920 4,283 3,920 3,802 3,866 3,594 3,911 3,312 3,721 3,194 2,523 Avg. yield lb/a 4,869 4,801 4,724 4,724 4,629 4,538 4,470 4,252 4,184 4,166 4,075 4,070 3,998 3,930 3,916 3,857 3,685 3,630 3,104 Variety ViruGard ................................................ 4,701 C99R ...................................................... 5,155 Georgia Green ........................................ 4,910 Gregory .................................................. 4,710 VA-C 92R .............................................. 4,774 AgraTech VC-2 ...................................... 4,901 AgraTech 1-1 ......................................... 4,374 NC-V11 .................................................. 4,084 NC 7 ....................................................... 4,447 AgraTech 201 ......................................... 4,048 VA 93B .................................................. 4,229 VA 98R .................................................. 4,338 Southern Runner ..................................... 4,129 Andru 93 ................................................ 4,265 Georgia Bold .......................................... 3,920 GK 7 High Oleic ..................................... 4,401 NC 12C .................................................. 3,648 SunOleic 97R ......................................... 4,066 Florunner ................................................ 3,685 Overall Average .............................................................................................................................. 4,187 CV (%) .............................................................................................................................................. 13.4 LSD (.05) ........................................................................................................................................................... 562 6 ALABAMA AGRICULTURAL EXPERIMENT STATION AT THE TABLE 3. THREE-YEAR AVERAGE YIELD OF IRRIGATED PEANUT V ARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 1998-2000 1998 lb/a 6,089 5,990 6,171 5,082 5,200 5,527 5,717 5,064 5,545 5,427 5,055 5,028 5,019 4,492 4,601 1999 lb/a 4,701 4,910 4,901 4,774 4,374 4,447 4,229 4,084 4,265 3,920 4,129 4,401 3,648 4,066 3,685 2000 lb/a 5,037 4,538 4,175 4,483 4,565 3,920 3,920 4,420 3,594 3,911 3,866 3,312 3,721 3,194 2,523 Avg. yield lb/a 5,276 5,146 5,082 4,780 4,713 4,631 4,622 4,523 4,468 4,419 4,350 4,247 4,129 3,917 3,603 Variety ViruGard ................................ Georgia Green ........................ AgraTech VC-2 ...................... VA-C 92R .............................. AgraTech 1-1.......................... NC 7 ....................................... VA 93B .................................. 4,622NC-V11 ......................... Andru 93 ................................ Georgia Bold .......................... Southern Runner ..................... GK 7 High Oleic ..................... NC 12C .................................. SunOleic 97R ......................... Florunner ................................ Overall Average ................................................................................................................................ 4,527 CV (%) ................................................................................................................................................ 14.6 LSD (.05) .............................................................................................................................................................. 533 AT THE TABLE 4. AVERAGE S IZE AND GRADE ON IRRIGATED PEANUT VARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 2000 SMKRS count/lb SMKRS pct 68 71 64 65 67 68 66 70 73 68 67 66 65 66 67 70 68 65 64 66 72 SS pct Variety TSMK pct 70 72 66 67 73 74 68 73 75 72 69 68 67 69 69 74 71 66 67 69 74 OK pct 4 3 5 6 3 3 5 2 3 1 5 2 2 2 1 3 4 2 2 2 2 DK pct 1 1 1 2 1 1 2 1 0 1 1 1 1 1 1 0 1 1 2 1 1 TK pct 75 76 71 75 77 78 75 76 78 74 75 71 70 72 71 77 76 69 71 72 77 Hulls pct 25 24 29 25 23 22 25 24 22 26 25 29 30 28 29 23 24 31 29 28 23 AgraTech 1-1............. 783 AgraTech 201 ............ 721 AgraTech VC 2 ......... 528 Andru 93 ................... 744 C99R ......................... 658 Florida MDR 98 ........ 678 Florunner ................... 797 Georgia Bold ............. 668 Georgia Green ........... 811 Georgia Hi-O/L ......... 522 GK 7 High Oleic ........ 744 Gregory ..................... 420 NC 7 .......................... 445 NC 12C ..................... 510 NC-V11 ..................... 499 Southern Runner .......... 841 SunOleic 97R ............... 770 VA 93B ........................ 534 VA 98R ........................ 504 VA-C 92R .................... 504 ViruGard ...................... 575 2 1 1 2 6 6 2 3 2 4 2 2 2 3 2 4 3 1 3 3 2 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 7 AT THE TABLE 5. TWO-YEAR AVERAGE S IZE AND GRADE ON IRRIGATED PEANUT VARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 1999-2000 SMKRS count/lb SMKRS pct 66 68 64 65 69 66 70 72 68 65 65 66 67 70 69 63 65 66 70 SS pct Variety TSMK pct 69 70 65 67 73 68 73 74 70 67 67 68 69 72 72 64 67 69 73 OK pct 5 4 5 6 3 5 2 3 5 2 2 2 3 3 3 3 2 2 3 DK pct 1 2 1 2 1 2 1 1 1 2 1 1 1 2 1 1 2 1 1 TK pct 75 76 71 75 77 75 76 78 76 71 70 72 73 76 76 68 71 72 77 Hulls pct 25 24 29 25 23 25 24 22 24 29 30 28 27 24 24 32 29 28 23 AgraTech 1-1 ...................... 769 AgraTech 201 ...................... 732 AgraTech VC-2 ................... 554 Andru 93 ............................. 721 C99R ................................... 631 Florunner ............................. 769 Georgia Bold ....................... 668 Georgia Green ..................... 783 GK 7 High Oleic .................. 658 Gregory ............................... 432 NC 7 .................................... 468 NC 12C ............................... 504 NC-V11 ............................... 499 Southern Runner .................. 811 SunOleic 97R ...................... 732 VA 93B ............................... 522 VA 98R ............................... 522 VA-C 92R ........................... 488 ViruGard ................................. 590 2 2 1 2 4 2 3 2 2 2 2 3 2 2 3 2 2 3 3 AT THE TABLE 6. THREE-YEAR AVERAGE S IZE AND GRADE ON IRRIGATED PEANUT VARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 1998-2000 SMKRS count/lb SMKRS pct 67 65 66 67 70 72 68 66 67 67 70 69 64 67 70 SS pct Variety TSMK pct 69 67 67 69 73 74 72 67 69 69 72 71 66 69 73 OK pct 5 4 6 4 2 3 4 3 2 3 3 4 3 2 3 DK pct 1 1 2 2 1 1 1 1 2 2 1 1 1 2 1 TK pct 75 72 75 75 76 78 77 71 73 74 76 76 70 73 77 Hulls pct 25 28 25 25 24 22 23 29 27 26 24 24 30 27 23 AgraTech 1-1 ..................... 757 AgraTech VC-2 .................. 516 Andru 93 ............................ 721 Florunner ............................ 744 Georgia Bold ...................... 668 Georgia Green .................... 744 GK 7 High Oleic ................. 631 NC 7 ................................... 445 NC 12C .............................. 473 NC-V11 .............................. 478 Southern Runner ................. 796 SunOleic 97R ..................... 709 VA 93B .............................. 493 VA-C 92R .......................... 454 ViruGard ................................ 590 2 2 1 2 3 2 3 1 2 2 2 2 2 2 3 8 ALABAMA AGRICULTURAL EXPERIMENT STATION AT THE TABLE 7. AVERAGE S HELLED S EED S IZE DISTRIBUTION OF IRRIGATED PEANUT VARIETIES WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 1998-2000 ———————SMKRS Size Distribution——————— +21.0 -21.0 + 18.0 -18.0 + 16.0 ———Jumbo——— ———Medium——— ————No. 1———— pct pct pct –1998—–1999–—2000– –1998—–1999–—2000– 49.0 — 35.0 50.8 — — 61.6 38.5 54.1 — 43.1 — 14.3 10.4 23.1 56.6 56.5 21.9 — 21.1 40.7 60.5 60.4 45.2 64.5 41.8 — 62.6 50.4 65.1 — 54.9 21.7 28.1 21.8 33.3 67.6 56.2 32.4 40.7 33.0 47.3 58.6 58.6 50.5 57.1 34.0 32.4 64.2 44.1 54.5 22.8 58.8 15.4 24.0 21.0 36.3 58.1 57.1 33.3 28.9 30.4 44.7 –1998—–1999–—2000– 9.5 — 5.7 12.4 — — 11.3 5.7 6.1 — 7.8 — 3.4 3.6 4.8 6.7 7.5 5.9 — 2.5 4.9 11.4 12.3 9.1 14.7 5.9 — 12.5 6.8 10.3 — 10.3 4.4 6.0 3.7 5.6 9.1 8.8 7.4 6.2 4.5 6.4 10.6 14.3 11.2 16.2 6.3 6.2 14.5 6.8 7.7 6.8 14.3 3.6 3.3 4.1 6.1 6.5 13.2 6.0 8.0 6.3 4.9 Variety AgraTech 1-1 .............................. 41.5 AgraTech 201 .............................. —1 AgraTech VC 2 ........................... 59.3 Andru 93 ..................................... 36.8 C99R ............................................ — Florida MDR 98 ........................... — Florunner ..................................... 27.1 Georgia Bold ............................... 55.8 Georgia Green ............................. 39.8 Georgia Hi-O/L ............................ — GK 7 High Oleic .......................... 49.1 Gregory ........................................ — NC 7 ............................................ 82.3 NC 12C ....................................... 86.0 NC-V11 ....................................... 72.1 Southern Runner .......................... 36.7 SunOleic 97R .............................. 36.0 VA 93B ....................................... 72.2 VA 98R ........................................ — VA-C 92R ................................... 76.4 ViruGard ......................................... 54.4 1 28.1 27.3 45.7 20.8 52.3 — 24.9 42.8 24.6 — 34.8 73.9 65.9 74.5 61.1 23.3 35.0 60.2 53.1 62.5 46.3 30.8 27.1 38.3 26.7 59.7 61.4 21.3 49.1 37.8 70.4 26.9 81.0 72.7 74.8 57.7 35.4 29.7 60.7 63.2 63.2 50.4 — Not tested. 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 9 TABLE 8. OCCURRENCE OF TOMATO S POTTED WILT VIRUS HITS1 IN THE IRRIGATED PEANUT VARIETY TEST AT THE WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 2000 ————————————Hits per plot————————————— Rep Rep Rep Rep Avg. I II III IV Georgia Hi-O/L ............................. 12 9 15 12 12.00 ViruGard ....................................... 18 10 10 16 13.50 C99R ............................................. 14 13 15 17 14.75 Gregory ......................................... 20 10 14 18 15.50 Southern Runner ............................ 21 19 27 14 20.25 Georgia Green ................................ 9 26 24 25 21.00 AgraTech 201 ................................ 22 23 15 25 21.25 GK 7 High Oleic ............................ 16 25 30 22 23.25 VA 93B ......................................... 27 18 25 23 23.25 VA 98R ......................................... 21 21 28 23 23.25 NC-V11 ......................................... 28 19 26 21 23.50 NC 12C ......................................... 32 18 22 22 23.50 AgraTech 1-1................................. 19 24 29 24 24.00 VA-C 92R ..................................... 21 24 30 21 24.00 AgraTech VC-2 ............................. 27 18 24 29 24.50 Florida MDR 98 ............................ 17 30 29 27 25.75 NC 7 .............................................. 33 21 31 25 27.50 Florunner ....................................... 24 28 31 30 28.25 SunOleic 97R ................................ 33 31 27 30 30.25 Georgia Bold ................................. 31 31 25 39 31.50 Andru 93 ....................................... 34 39 36 34 35.75 Variety Overall Average ..................................................................................................................................... 23.17 CV (%) ................................................................................................................................................... 19.83 LSD (.05) ................................................................................................................................................................. 6.49 1 Hits equal length of row up to one linear foot with severely diseased plants. 10 ALABAMA AGRICULTURAL EXPERIMENT STATION TABLE 9. O CCURRENCE OF WHITE MOLD HITS IN THE I RRIGATED PEANUT VARIETY TEST AT THE W IREGRASS RESEARCH AND E XTENSION CENTER, H EADLAND, ALABAMA, 2000 ————————————Hits per plot————————————— Rep Rep Rep Rep Avg. I II III IV VA 93B .......................................... 0 0 1 0 0.25 ViruGard ........................................ 0 0 0 3 0.75 AgraTech 1-1 .................................. 1 2 1 2 1.50 Georgia Hi-O/L .............................. 2 1 2 1 1.50 NC 7 ............................................... 3 1 1 1 1.50 NC 12C .......................................... 2 1 3 1 1.75 Florida MDR 98 ............................. 1 2 2 4 2.25 AgraTech VC-2 .............................. 1 1 5 4 2.75 VA-C 92R ...................................... 2 1 3 5 2.75 Andru 93 ........................................ 4 3 3 3 3.25 C99R .............................................. 4 7 4 3 4.50 Georgia Bold ................................. 10 1 1 6 4.50 Gregory ......................................... 10 3 1 4 4.50 Southern Runner ............................. 2 8 2 7 4.75 NC-V11 .......................................... 6 8 0 7 5.25 Georgia Green ................................ 1 2 9 14 6.50 GK 7 High Oleic ............................. 8 3 10 8 7.25 VA 98R .......................................... 8 11 8 2 7.25 SunOleic 97R ................................. 4 8 6 15 8.25 AgraTech 201 ................................. 9 8 10 11 9.50 Florunner ....................................... 16 13 9 15 13.25 Variety Overall Average ....................................................................................................................................... 4.87 CV (%) ................................................................................................................................................... 72.11 LSD (.05) .................................................................................................................................................................. 3.97 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 11 AT THE TABLE 10. O CCURRENCE OF LEAFSPOT IN THE IRRIGATED PEANUT VARIETY TEST WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 2000 ————————————Rating per plot1————————————— Rep Rep Rep Rep Avg. I II III IV NC-V11 .......................................... 2 3 2 4 2.75 VA-C 92R ...................................... 3 3 3 3 2.75 Andru 93 ........................................ 3 3 2 4 3.00 SunOleic 97R ................................. 5 2 3 2 3.00 Georgia Hi-O/L .............................. 5 4 2 2 3.25 AgraTech 1-1 .................................. 4 3 4 3 3.50 GK 7 High Oleic ............................. 4 4 2 4 3.50 Gregory .......................................... 4 3 3 4 3.50 VA 98R .......................................... 3 4 4 3 3.50 Florunner ........................................ 4 5 3 3 3.75 NC 7 ............................................... 4 4 3 4 3.75 VA 93B .......................................... 4 4 3 4 3.75 Georgia Bold .................................. 3 4 5 4 4.00 Georgia Green ................................ 4 4 3 5 4.00 AgraTech 201 ................................. 5 4 4 4 4.25 NC 12C .......................................... 6 3 3 5 4.25 Southern Runner ............................. 4 4 4 5 4.25 AgraTech VC-2 .............................. 6 4 4 4 4.50 Florida MDR 98 ............................. 5 5 4 4 4.50 ViruGard ........................................ 4 4 5 5 4.50 C99R .............................................. 6 5 3 5 4.75 Variety Overall Average ........................................................................................................................................ 3.76 CV (%) ................................................................................................................................................... 22.20 LSD (.05) .................................................................................................................................................................. 1.81 1 Rating 1 (lowest) to 10 (highest). 12 ALABAMA AGRICULTURAL EXPERIMENT STATION TABLE 11. YIELD OF DRYLAND PEANUT VARIETIES AT THE W IREGRASS RESEARCH AND E XTENSION C ENTER, H EADLAND, ALABAMA, 2000 Variety ViruGard ......................................................... Georgia Green ................................................. AgraTech 1-1 ................................................... Southern Runner .............................................. Georgia Bold ................................................... Yield lb/a 2966 2705 2505 2477 2459 Variety C99R ............................................................. Florida MDR 98 ............................................. GK 7 High Oleic ............................................ AgraTech 201 ................................................ Florunner ....................................................... Yield lb/a 2424 2407 1915 1897 1845 Overall Average ........................................................................................................................................ 2358 CV (%) ....................................................................................................................................................... 9.13 LSD (.05) ..................................................................................................................................................................... 312 TABLE 12. AVERAGE S IZE AND GRADE ON DRYLAND PEANUT VARIETIES AT THE W IREGRASS RESEARCH AND E XTENSION CENTER, H EADLAND, ALABAMA, 2000 Variety SMKRS count/lb SMKRS pct 52 49 65 65 56 61 59 53 66 61 SS pct TSMK pct 54 51 71 68 58 63 63 55 67 65 OK pct 14 16 2 5 12 7 10 12 6 5 DK pct 0 0 0 0 0 0 0 0 0 0 TK pct 68 67 73 73 70 70 73 67 73 70 Hulls pct 32 33 27 27 30 30 27 33 27 30 AgraTech 1-1 ..................... 1107 AgraTech 201 .................... 1297 C99R ................................. 744 Florida MDR 98 ................ 811 Florunner ........................... 1056 Georgia Bold ..................... 1335 Georgia Green ................... 1056 GK 7 High Oleic ................ 1135 Southern Runner ................ 873 ViruGard ................................ 825 2 2 6 3 2 2 4 2 1 4 AT THE TABLE 13. YIELD OF LATE-PLANTED DRYLAND PEANUT VARIETIES W IREGRASS RESEARCH AND EXTENSION C ENTER, HEADLAND, ALABAMA, 2000 Yield lb/a Variety Yield lb/a Variety Georgia Green ................................................... 1162 AgraTech 1-1 .................................................... 880 ViruGard ........................................................... 1109 AgraTech 201 ................................................... 651 Overall Average ........................................................................................................................................... 948 CV (%) ....................................................................................................................................................... 20.0 LSD ( .05) .................................................................................................................................................................... 303 TABLE 14. AVERAGE S IZE AND GRADE ON LATE-PLANTEDDRYLAND PEANUT VARIETIES AT THE W IREGRASS RESEARCH AND E XTENSION CENTER, H EADLAND, ALABAMA, 2000 Variety SMKRS count/lb SMKRS pct 53 49 56 57 SS pct TSMK pct 72 69 74 73 OK pct 1 1 1 1 DK pct 0 0 0 1 TK pct 73 70 75 75 Hulls pct 27 30 25 25 AgraTech 1-1 ...................... 987 AgraTech 201 .................... 1032 Georgia Green ................... 1032 ViruGard ................................ 927 19 20 18 16 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 13 PLANTING R ATE CHART1 Seed per pound Seed per foot Lbs. per acre Seed per foot Lbs. per acre Seed per foot Lbs. per acre 600 625 650 675 700 725 750 775 800 825 850 875 900 925 950 975 1000 1025 1050 1075 1100 1 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 121 116 112 108 104 100 97 94 91 88 85 83 81 78 76 74 73 71 69 68 66 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 145 140 134 129 124 120 116 112 109 106 102 100 97 94 92 89 87 85 83 81 79 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 178 171 164 158 152 147 142 138 133 129 125 122 118 115 112 109 107 104 102 99 97 Pounds of peanut seed at various seed count per pound required to plant 1 acre at five, six, or seven seed per foot of row with single row width spacing. (For twin-rows at 36-inch centers, divide seed per foot for single row by two to determine seed per foot for each twin-row.) To determine pounds per acre at 36-inch row spacing, use the following formula: (A) Seed per foot x linear feet in 1 acre = pounds per acre Seed count per pound (B) To determine linear feet in one acre at 36-inch row spacing: 43,560 square feet per acre = 14,520 linear feet in 1 acre 3 square feet (C) Example: 6 seed per foot x 14,520 linear feet = 109 pounds per acre 800 seed per pound 14 ALABAMA AGRICULTURAL EXPERIMENT STATION AT THE TESTS DURATION DAILY RAINFALL DATA RECORDED WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 2000 MAY in — — — — — — — — — — — — — 0.11 — — — — — — — — — — — — — — — — — 0.11 JUNE in — — — — — 0.08 — — — — — — — — 0.05 0.27 0.24 — — — — — 0.13 — — 0.05 0.24 0.10 0.32 0.17 — 1.75 JULY in — — 0.12 — — — — — — — — 0.10 0.11 0.35 — — — — — — — — — 0.10 — — — 0.25 0.20 0.08 0.06 1.27 AUG in 0.08 0.97 0.78 — 0.10 — — 0.13 — 0.12 — — — — — — — — — 0.17 — — — — — 0.21 — 0.04 — — — 2.60 SEPT in — 0.02 0.31 0.25 — 0.83 0.60 0.02 — — — — — — 1.20 — — — — — — — 0.88 — — 0.58 — — — — — 6.14 OCT in — — — — — — 0.25 — — — — — — — — — — — — — — 1.45 — — — — — — — — — 0.25 NOV in — — — — — — 0.02 0.21 0.36 1.22 — — — 0.81 — — 0.65 0.05 1.90 0.05 — — — — 1.93 — — — — — — 7.20 DATE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Totals1 1 APR in — — — 0.17 — — — — — — — — — — 0.07 — — — — — — — — — 0.22 — — 0.03 — — — 0.49 Total daily rainfall from April through November, 2000 = 19.81 in; 1999 = 28.15 in; 1998 = 37.41 in. 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 15 AT THE TESTS DURATION DAILY MAXIMUM TEMPERATURES RECORDED WIREGRASS RESEARCH AND EXTENSION CENTER, HEADLAND, ALABAMA, 2000 MAY o F 85 86 87 89 88 87 88 90 90 90 92 95 95 98 90 90 89 91 92 92 91 85 92 97 96 97 99 98 98 96 89 DATE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 APR o F 79 80 80 81 65 70 77 80 70 70 77 80 83 81 81 79 85 87 81 87 87 80 82 76 80 68 78 80 81 83 JUNE o F 92 96 102 101 100 92 92 90 95 95 96 96 96 97 99 95 88 93 97 97 98 98 99 97 98 96 88 93 92 91 JULY o F 93 96 95 92 95 100 101 105 98 100 102 99 100 101 99 104 104 102 106 105 108 101 101 101 97 93 92 96 96 95 91 AUG o F 90 91 85 88 94 95 95 95 95 96 92 94 93 93 95 98 101 104 106 98 100 93 93 96 98 99 97 98 99 97 95 SEPT o F 93 92 93 92 93 93 70 75 84 89 91 90 92 93 91 92 88 84 85 87 90 87 82 88 90 90 73 77 79 81 OCT o F 83 83 83 84 88 90 87 66 75 62 66 75 78 80 81 82 83 85 86 85 85 85 82 83 80 82 81 85 86 87 84 NOV o F 86 85 84 —1 — 85 80 80 83 75 64 66 69 69 59 60 58 58 45 45 58 48 49 55 62 65 63 64 65 70 Not recorded. 16 ALABAMA AGRICULTURAL EXPERIMENT STATION DESCRIPTIONS OF 2000 PEANUT VARIETY TEST ENTRIES 1. AgraTech 1-1 Developed by Dr. Kim Moore, AgraTech Seeds Inc. Released in 1999 with variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. Maturity is approximately 15 days earlier than Florunner. Seed and pod size slightly larger than Florunner, with high oleic/linoleic fatty acid ratio and typical runner growth habit. Has shown tolerance to tomato spotted wilt virus. 2. AgraTech 201 Developed by Dr. Kim Moore, AgraTech Seeds Inc. Released in 1999 with variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. Maturity range is same as Florunner with similar seed and pod size. The oleic/linoleic fatty acid ratio is high with typical runner growth habit with erect mainstem. Carries tolerance to tomato spotted wilt virus with thin hulls and dark green foliage. 3. AgraTech VC 2 Developed by Dr. Kim Moore, AgraTech Seeds Inc. Released in 1999 with variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. Maturity is about the same as NC 7 and has smaller seed and pod size than NC 7. The oleic/linoleic fatty acid ratio is high with runner type growth habit. No known insect resistance, but has shown some tolerance to tomato spotted wilt virus. Has slightly less vine growth than NC 7. 4. Andru 93 Developed by Dr. Dan Gorbet, University of Florida Agricultural Experiment Station. Released in 1993 and a protected variety to be sold only as a class of certified seed. Earlier in maturity by seven to ten days than Florunner. Has slightly larger seed and pod size than Florunner, normal oleic/linoleic fatty acid ratio, and typical runner growth habit. Has no known disease or insect resistance. Released primarily due to earliness and high yields. Has prominent center stem and more jumbo kernels than Florunner. 5. C99R Developed by Dr. Dan Gorbet, Florida Agricultural Experiment Station. Released in 1999 with variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. The maturity range is 14 to 21 days later than Florunner with large seed and pod size and normal oleic/linoleic fatty acid ratio. Runner growth habit with resistance to late leafspot, white mold, and tomato spotted wilt virus. Other characteristics include good yields and grades with multiple disease resistance (as noted); similar to Florida MDR 98 but more normal oleic fatty acid content (55 to 59%) with somewhat darker green foliage. 6. Florida MDR 98 Developed by Dr. Dan Gorbet, University of Florida Agricultural Experiment Station. Released in 1998. Variety Protection has been applied for under the 1994 Amendment of the Plant Variety Protection Act. (MDR stands for Multiple Disease Resistance.) Later in maturity than Florunner by approximately 15 days. Larger seed and pod size than Florunner and has mid-level oleic/linoleic fatty acid ratio. Has better resistance than Southern Runner to late leafspot, white mold, rust, tomato spotted wilt virus, and web blotch. No known insect resistance. Released due to significantly larger seed, better yields and grade than Southern Runner. Has larger leaves than Southern Runner, but similar pod venation and seed coat color. 7. Florunner Developed by Dr. Al Norden, University of Florida Agricultural Experiment Station. Released in 1969. Matures in approximately 135 days and has normal oleic/linoleic fatty acid ratio. Until the occurrence of tomato spotted wilt virus, Florunner had been the industry standard of comparison with respect to yield for runner varieties. It is still the standard of comparison for many milling characteristics for runner varieties. No known disease or insect resistance. 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 17 8. Georgia Bold Developed by Dr. Bill Branch, University of Georgia Agricultural Experiment Station. Released in 1997 and protected under the 1994 Amendment of the Plant Variety Protection Act. Same maturity range as Florunner with larger seed and pod size with slightly higher oleic/linoleic fatty acid ratio. No known insect resistance, but has moderate tolerance to tomato spotted wilt virus. Georgia Bold has excellent yield and grade combination with significantly larger seed size than Florunner for both seed weight and percentage of extra large kernels. 9. Georgia Green Developed by Dr. Bill Branch, University of Georgia Agricultural Experiment Station. Released in 1995 and protected under the 1994 Amendment of the Plant Variety Protection Act. Same maturity range as Florunner with seed and pod size similar to or slightly more round than Florunner. Normal oleic/linoleic fatty acid ratio with intermediate growth habit and considerable less vine growth than Florunner. Resistant to tomato spotted wilt virus, but carries no known insect resistance. Georgia Green has proven to have yield stability across a wide range of different environments under both irrigated and non-irrigated conditions and in both single and twin row patterns. 10. Georgia Hi-O/L Developed by Dr. Bill Branch, University of Georgia Agricultural Experiment Station. Released in 1999 with plant variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. Same maturity range as Florunner with larger seed and pod size, high oleic/linoleic acid ratio, and intermediate growth habit. Resistant to tomato spotted wilt virus. 11. GK 7 High Oleic Developed by Dr. Kim Moore, AgraTech Seeds Inc. Released in 1997 and protected under the 1994 Amendment of the Plant Variety Protection Act. Maturity range similar to Florunner with seed and pod size slightly larger. High oleic/linoleic fatty acid ratio and some tolerance to tomato spotted wilt virus. No other known disease or insect resistance. Typical runner growth habit with erect mainstem. 12. Gregory Developed by Dr. T. G. Isleib, North Carolina Agricultural Research Service. Released in 1997 with plant variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. Maturity range is earlier than NC 7 with larger seed and pod size. Has normal oleic/linoleic fatty acid ratio and intermediate growth habit. The only known resistances of Gregory are to CBR (this is very slight; i.e., it is less susceptible than NC 7) and to tomato spotted wilt virus (6.5% infection rate compared with 9.2% for NC-V11). Like NC 7 and NC 12C, Gregory is extremely susceptible to sclerotinia blight. Gregory has a pink seed coat. 13. NC 7 Developed by North Carolina Agricultural Research Service. Released in 1978 and protected under the 1994 Amendment of the Plant Variety Protection Act. Has become the industry standard for Virginia variety development comparisons as Florunner has for Runner varieties. Maturity range is early compared with other Virginia varieties. Has normal oleic/linoleic fatty acid ratio and intermediate growth habit. Highly susceptible to early leafspot, CBR, and sclerotinia blight but has moderate tolerance to tomato spotted wilt virus. No known insect resistance. It is preferred for the in-shell export market due to its large pod and size. 14. NC 12C Developed by North Carolina Agricultural Research Service. Released in 1996 and protected under the 1994 Amendment of the Plant Variety Protection Act. Same maturity group as NC 7 with about the same seed and pod size, normal oleic/ linoleic fatty acid ratio, and intermediate growth habit. Intermediate resistance to CBR (similar to NC 10C), low level of resistance to early leafspot (similar to NC 6), low level of tolerance to tomato spotted wilt virus, and highly susceptible to sclerotinia blight. No known insect resistance. Pod and seed characteristics similar to NC 7. 18 ALABAMA AGRICULTURAL EXPERIMENT STATION 15. NC-V11 Developed by North Carolina Agricultural Research Service, Virginia Agricultural Experiment Station, and USDAARS. Released in 1998 and protected under the Plant Variety Protection Act, Maturity range same as NC 7 with smaller seed and pod size, normal oleic/linoleic fatty acid ratio, and runner growth habit. Has field tolerance to tomato spotted wilt virus, low level of resistance to CBR, susceptible to early leafspot and sclerotinia blight. No known insect resistance. Bright shapely pods make NC-V11 one of the three varieties preferred by VC area shellers (VA 93B first, NC 10C second, NC-V11 third). 16. Southern Runner Developed by Dr. Dan Gorbet, University of Florida Agricultural Experiment Station. Released in 1986 and protected under the Plant Variety Protection Act. Matures 15 to 20 days later than Florunner with smaller seed and pod size. Has normal oleic/linoleic fatty acid ratio with runner growth habit. Has resistance to late leafspot, white mold, rust, and tomato spotted wilt virus. Possibly has some resistance to Southern corn rootworm, possibly more drought tolerant and usually lower LSK and less alfatoxin than Florunner. Tan seedcoat and prominent exterior hull venation. 17. SunOleic 97R Developed by Dr. Dan Gorbet, University of Florida Agricultural Experiment Station. Released in 1997 and protected under the 1994 Amendment of the Plant Variety Protection Act. Same maturity group as Florunner, with about the same seed and pod size. High oleic/linoleic fatty acid ratio with typical runner growth habit. No known disease or insect resistance. Generally very similar to Sunrunner, but with high oleic oil chemistry. 18. VA 93B Developed by Virginia Agricultural Experiment Station and USDA-ARS. Released in 1993 and protected under the Plant Variety Protection Act. Maturity range is earlier than NC 7 by about seven days in the VC area. Has smaller seed and pod size than NC 7, normal oleic/linoleic fatty acid ratio, and bunch growth habit. No known insect resistance and has a moderate resistance to sclerotinia blight. Bright, shapely, fancy pods made VA 93B the most preferred variety for in-shell products in the VC shelling industry. 19. VA 98R Developed by Virginia Agricultural Experiment Station and USDA-ARS. Released in 1998 with plant variety protection applied for under the 1994 Amendment of the Plant Variety Protection Act. Maturity range is early, similar to NC 7 with smaller seed and pod size, normal oleic/linoleic fatty acid ratio, and runner growth habit. No known insect or disease resistance. However, early data indicate that it might be less susceptible to sclerotinia blight than some Virginia type varieties (NC 7, NC 10C, Gregory, and NC 12C). Other characteristics are high yield potential with excellent pod characteristics for in-shell processing (bright pod color and typical peanut shape). Its runner growth habit and prominent erect mainstem makes for easier digging with rows being easily determined. 20. VA-C 92R Developed by Virginia Agricultural Experiment Station, North Carolina Agricultural Research Service, and USDAARS. Released in 1992 and protected under the Plant Variety Protection Act. Maturity range same as NC 7 with smaller seed and pod size and normal oleic/linoleic fatty acid ratio. Has intermediate growth habit with moderate field tolerance to tomato spotted wilt virus, susceptible to early leafspot. Has uniform pink seed. Its high yield potential made it very popular in the VC area until area shellers voiced concerns over its relatively dark hulls. 21. ViruGard Developed by Dr. Ernest Harvey, AgraTech Seeds Inc. Released in 1997 under the 1994 Amendment of the Plant Variety Protection Act. Maturity range is earlier than Florunner with larger seed and pod size, mid-level oleic/linoleic fatty acid ratio, and intermediate growth habit. Generally smaller leaflet size than Florunner. No known insect resistance. Resistant to tomato spotted wilt virus. Seedcoat color lighter than Florunner. 2000 ALABAMA PERFORMANCE COMPARISON OF PEANUT VARIETIES 19 SOURCES OF SEED Dr. W. D. Branch University of Georgia Department of Crop and Soil Sciences Coastal Plain Experiment Station Tifton, Georgia 31793 Georgia Bold Georgia Green Georgia Hi-O/L Dr. D.W. Gorbet University of Florida North Florida Research & Education Center 3925 Highway 71 Marianna, Florida 32446 Andru 93 C99R Florida MDR 98 Florunner Southern Runner SunOleic 97R Dr. Thomas G. Isleib North Carolina State University Department of Crop Science Unit 3: 840 Method Road Raleigh, North Carolina 27695 Gregory NC 7 NC 12C NC-V11 Mr. Fabian Watts AgraTech Seeds Incorporated Peanut Seed Research Center P.O. Box 644 Ashburn, Georgia 31714 AgraTech 1-1 AgraTech 201 AgraTech VC 2 GK 7 High Oleic ViruGard Mr. Walton Mozingo Virginia Poly. Ins. & St. Univ. Tidewater Ag. Res. & Ext. Ct. 6321 Holland Road Suffolk, VA 23437 VA 93B VA 98R VA-C 92R 20 ALABAMA AGRICULTURAL EXPERIMENT STATION