1998 Crop Performance Trials: Corn

Transcription

1 South Dakota State University Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange Agricultural Experiment Station Circulars SDSU Agricultural Experiment Station Crop Performance Trials: Corn R. G. Hall South Dakota State University, K. K. Kirby South Dakota State University, Follow this and additional works at: Recommended Citation Hall, R. G. and Kirby, K. K., "998 Crop Performance Trials: Corn" (998). Agricultural Experiment Station Circulars. Paper This Circular is brought to you for free and open access by the SDSU Agricultural Experiment Station at Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange. It has been accepted for inclusion in Agricultural Experiment Station Circulars by an authorized administrator of Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange. For more information, please contact

2 C5 Revised AnnuaHy Tri a Is '

3 Corn 998 Performance Trials C 5 Revised annually Robert G. Hall Professor I Extension Agronomist & Project Leader, Crop Performance Testing & Kevin K. Kirby Senior Ag. Research Technician, Crop Performance Testing Plant Science Department Agricultural Experiment Station South Dakota State University Brookings, SD 7-96 Entries and their yield table locations are reported in table D. This report evaluates the performance of entries in the 998 South Dakota corn hybrid performance trials. Information includes both and 998 grain yields in bushels per acre (bu/ac); and 998 test weight, moisture percentages of shelled corn at harvest, final plant populations per acre, and stalk lodge percentages. These trials were conducted by the South Dakota State University crop performance testing ( CPT) program. Pounce. EC at 8 oz/ac with gal/ac of water using a highboy on July 8. All plots exhibited good field emergence. At harvest, both trials exhibited many stalks leaning at 45 degrees or less; however, harvesting was no problem. Beresford (SE Research Farm) plots were sprayed for European corn borer control with liquid Pounce. EC at 8 oz/ac with gal/ac of water using a highboy on July. Weather and Climatic Conditions Test Trial Locations Test trial locations along with soil types and seedbed preparation are given in Table A, while seeding and harvest dates are in Table B. Seeding of plots started on April 5 and was completed by May. Trial results at all locations were very good this year. Test sites experiencing problems this year were: Frankfort (Spink Co.) plots were hit by high winds on July 8. These winds caused some "greensnap" in both trials. Generally, within hybrids the level of greensnap was consistent across all three replications and occurred below the ear. Watertown (NE Research Farm) plots were seeded May into a good seedbed. Plots were sprayed for European corn borer control with liquid Climatic data (Table C) for this year's growing season, April-October, was obtained from the South Dakota Automatic Weather Data Network at Watertown and Sioux Falls airport data were used for the Watertown and the Colton trials, respectively. Stations are located at or near the other trial sites. Precipitation quantities may differ between test sites and the recording station; however, the nearest available data is reported. The assistance of the following... CPT technician Jesse Hall at Brookings, Jim Smolik and Allen Heuer at the Northeast Research Farm, Todd Bortnem and the Brookings Agronomy Farm staff, and Bob Berg and the Southeast Research Farm staff; Robert Clark (Armour), Greg Vanzanten (Colton), and Steve Masat (Frankfort), farmercooperators... is deeply appreciated. Available electronically on World Wide Web at

4 Monthly precipitation totals were variable across locations. Monthly levels varied from a low of. inches at Redfield in September to a high of 7.6 at Watertown in October. More importantly, the station with the high accumulation of seasonal precipitation was Armour at 6. inches, 6.6 inches above average. The only station reporting below-average precipitation was Brookings at 6. inches or 4.6 inches below average from April through October. Although Brookings was below average in rainfall for the season, a.5 inch accumulation for August was timely and critical in obtaining respectable yields during an otherwise dry year. Heat unit or growing degree day (GDD) accumulations are reported for the nearest test site. Corn hybrids typically express a certain thermal or heat unit requirement from emergence to black-layer formation (physiological maturity). The GDD totals across test locations varied from a high of 4 at Armour to a low of 54 at Watertown. At the four locations with a long-term history of GDD accumulation, two sites (Brookings and Centerville) showed above-average heat unit totals for the year and two sites (Sioux Falls and Watertown) showed below-average GDD totals for the year. The remaining two sites have no longterm GDD history with which to make comparisons. This year Armour totaled 4 heat units. The Redfield heat unit total for the season was incomplete because of missing data in July. In "Summary, the climatic conditions this year were variable across all locations. In general, however, there were no major negative climatic impacts on our test trial results. Hybrid Entry Procedure Participating companies pick the test locations where their entries are tested. Entries are placed into "early" or "late" maturity trials. The arbitrary relative maturity breaks between the early and late tests are as follows: 95 days for Watertown; days for Frankfort, Brookings, and Pierre; 5 days for Crooks and Armour; days for Beresford. Hybrids are assigned to maturity trials based on relative maturity ratings defined by the participating company. This testing program does not guarantee that all entries are placed in the proper maturity trial. In some trials, borderline entries with relative maturity ratings at or near the arbitrary break between the early and late trials may crossover at a given location. In some cases, this may be indicated by exceptionally high or low grain moisture contents at harvest. A higher than average moisture may indicate the hybrid is later in relative maturity than indicated. Likewise, a lower than average moisture may indicate the hybrid is earlier in relative maturity than indicated. A fee was charged for all entries at each location. A list of participating seed brands is presented in table E. Experimental Procedures Entries were seeded in three replications with each hybrid randomly located within a replication. Plots consisted of two -inch rows, feet long. Soil type, land preparation, and previous crop at each test site are outlined in table A. A starter fertilizer of pounds/ac of 7-8- was applied inches below and inches to the side ( x ) of the seed row. Force insecticide was T-banded at label rates for com rootworrn control this year. Recommended herbicides (pre-emergence and post-emergence) were broadcast at labeled rates where needed. A -cell cone drill seeder was used for all plots. Cone units were mounted above commercial maximerge units. Seeding rate was 5% more than the desired number of plants harvested per plot. Plots were later thinned to a final field population C 5, 998 corn trials I

5 which is listed in each yield table. Seedbed preparation was good at all locations. Measurements of Performance Yield Yields are an average of three replications and are expressed as bushels per acre (bu/ac), adjusted to 5.5% moisture on a dry-matter basis and a bushel weight of pounds. Hybrids of equal potential may yield differently because of variations in slope, soil fertility, and stand. Statistical tests determine whether differences were caused by variations in environment or were true variety differences. In 998 the coefficient of variation (CV) for yield was % or less at all test sites except for Frankfort where high winds and "greensnap" likely caused high CV values. The CV value in a given test trial is a measure of experimental error associated with the test trial. Ideally, this value should not exceed 5%. In cases where the CV value exceeds 5% it is recommended that the test data be used with caution in selecting a hybrid. In 998, however, the CV values were well within test limits, and experimental error was not a major factor in any trial. Experimental error may be the result of several factors including test methods, or factors such as moisture, temperature, soil variations, or agronomic factors like seeding date, reseeding, or seed quality factors; all of which may or may not be controllable in a given year. Moisture Content Moisture content is expressed as the percentage of moisture in the shelled com at harvest. Moisture is inversely related to maturity. Because maturity is of prime importance in South Dakota, moisture figures are of considerable importance in the evaluation of the trial entries. Hybrids that provide satisfactory yields and can be stored without additional drying are desirable. Use of Tables Check for the "Least Significant Difference" (LSD) value at the bottom of each column of data averages. The LSD value indicates how much a variable such as yield must differ between two hybrids before there is a real yield difference. An LSD value is given at the bottom of every column where there is significant difference among the averages within that column. If there are no real differences among the averages within a given column, a "nonsignificant" (NS) difference designation is indicated. The LSD values can be used in two ways. Here the LSD value is used primarily to identify the topyielding group for each test trial. For example, at Watertown the highest -year yield was 7 bu/ac for Wensman Max 78. To determine whether Wensman Max 78 is the only top yielder at Watertown, use the LSD value of 6 bu/ac at the bottom of the -yr yield column. For hybrids to be in the top-yield group they must yield 47 bu/ac (7-6 = 46 + ) or higher. A yield of 47 bu/ac would be in the top-yield group while a yield of 46 bu/ac would not be in the top-yield group. That is why bu/ac is added to 46 in the above equation to define the topyield group. All yields and LSD values are rounded to the nearest whole number. We can say 47 bu/ac is the minimum value for top-yield hybrids at the "early" maturity test at Watertown in 998. This value is indicated as the min. top-yield value at the bottom of the -yr yield column. In addition, the minimum top-yield value is indicated for the -year (997-98) average unless there were no significant yield differences. Top-yield hybrids for 998 are those hybrids which are equal or higher than the minimim top-yield value indicated at the bottom of the 998 yield column. In addition to identifying the top-yield group, LSD values can be used to determine whether two hybrids differ in performance. For example, in the C 5, 998 corn trials I

6 early test at Watertown, the LSD value of 6 bu/ac can be used to compare the yields of any two hybrids in the early maturity trial. If hybrid A yields 6 bu/ac and hybrid B yields 4 bu/ac, their yield difference is bu/ac (6-4 = ). In this case the two hybrids do not differ in yield because their yield difference of bu/ac is less than the reported LSD value of 6 bu/ac. In contrast, if hybrid C yields 7 bu/ac, the yield difference between hybrid A and hybrid C would be 6 bu/ac (6-7 = 6). In this case the yield difference of 6 bu/ ac is more than the reported LSD value of 6 bu/ac and therefore hybrid A would have a significantly higher yield than hybrid C. PERFORMANCE TRIAL RESULTS The performance trial results for years ( ) and one year (998) are summarized below: Watertown (NE Research Farm) Early Maturity Trial (Table ) The number of hybrid entries was 54. The -year average was 5 bu/ac, hybrids had to average 47 bu/ac or higher to be in the top-yield group (TYG), and hybrids qualified. Hybrids had to differ by 6 bu/ac to be significantly different in yield. The 998 average was bu/ac, hybrids had to average 8 bu/ac or higher to be in the top-yield group, hybrids qualified. Hybrids had to differ by 6 bu/ac to be significantly different in yield. Late Maturity Trial (Table ) The number of hybrid entries was 45. The -year average was bu/ac, hybrids had to average 4 bu/ac or higher to be in the top-yield group(tyg), and 5 hybrids qualified. The test trial was unable to detect hybrid yield difference among entries tested for years; therefore, all entries qualified for the top-yield group and there were no significant differences in yield among hybrids tested years. The 998 average was 7 bu/ac, hybrids had to average 8 bu/ac or higher to be in the topyield group, and hybrids qualified. Hybrids had to differ by 5 bu/ac to be significantly different in yield. Frankfort, no-till (Steve Masat Farm) Early Maturity Trial (Table ) The number of hybrid entries was 5. The -year average was bu/ac, hybrids had to average 5 bu/ac or higher to be in the top-yield group (TYG), and hybrids qualified. Hybrids had to differ by 9 bu/ac to be significantly different in yield. The 998 average was 74 bu/ac, hybrids had to average 6 bu/ac or higher to be in the top-yield group, 4 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. Late Maturity Trial (Table 4) The number of hybrid entries was 9. The -year average was 69 bu/ac, hybrids had to average bu/ac or higher to be in the top-yield group (TYG), 6 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. The 998 average was 87 bu/ac, hybrids had to average 84 bu/ac or higher to be in the top-yield group, hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. Brookings (SDSU Agronomy Farm) Early Maturity Trial (Table 5) The number of hybrid entries was 6. The -year average was 5 bu/ac, hybrids had to average 4 bu/ac or higher to be in the top-yield group (TYG), hybrids qualified. Hybrids had to differ by 6 bu/ac to be significantly different in yield. The 998 average was 66 bu/ac, hybrids had to average 8 bu/ac or higher to be in the top-yield group, 8 hybrids qualified. Hybrids had to differ by 8 bu/ac to be significantly different in yield. Late Maturity Trial (Table 6) The number of hybrid entries was 45. The -year average was 5 bu/ac, hybrids had to average 54 bu/ac or higher to be in the top-yield group (TYG), 7 hybrids qualified. Hybrids had to differ by C 5, 998 corn trials I 4

7 bu/ac to be significantly different in yield. The 998 average was bu/ac, hybrids had to average 75 bu/ac or higher to be in the top-yield group, 5 hybrids qualified. Hybrids had to differ by 8 bu/ac to be significantly different in yield. Colton (Greg Vanzanten Farm) Early Maturity Trial (Table 7) The number of hybrid entries was 5. The -year average was 7 bu/ac, hybrids had to average 7 bu/ac or higher to be in the top-yield group (TYG). 7 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. The 998 average was bu/ ac, hybrids had to average bu/ac or higher to be in the top-yield group, and 4 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. Late Maturity Trial (Table 8) The number of hybrid entries was 7. The -year average was 8 bu/ac, hybrids had to average 69 bu/ac or higher to be in the top-yield group (TYG), and hybrids qualified. The test trial was unable to detect hybrid yield difference among entries tested for years, therefore all entries qualified for the top-yield group and there were no significant differences in yield among hybrids tested years. The 998 average was 9 bu/ac, hybrids had to average 7 bu/ac or higher to be in the top-yield group, 5 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. Armour, no-till (Robert Clark Farm) Early Maturity Trial (Table 9) The number of hybrid entries was 5. The -year average was 8 bu/ac, hybrids had to average 89 bu/ac or higher to be in the top-yield group (TYG), hybrids qualified. Hybrids had to differ by 4 bu/ac to be significantly different in yield. The 998 average was 78 bu/ac, hybrids had to average 95 bu/ac or higher to be in the top-yield group, 5 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. Late Maturity Trial (Table ) The number of hybrid entries was 64. The -year average was bu/ac, hybrids had to average 98 bu/ac or higher to be in the top-yield group (TYG), 8 hybrids qualified. Hybrids had to differ by 5 bu/ac to be significantly different in yield. The 998 average was 9 bu/ac, hybrids had to average bu/ac or higher to be in the top-yield group, 8 hybrids qualified. Hybrids had to differ by 8 bu/ac to be significantly different in yield. Beresford (SE Research Farm) Early Maturity Trial (Table ) The number of hybrid entries was 85. The -year average was 87 bu/ac, hybrids had to average 87 bu/ac or higher to be in the top-yield group (TYG), 4 hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. The 998 average was bu/ac, hybrids had to average 8 bu/ac or higher to be in the top-yield group, hybrids qualified. Hybrids had to differ by bu/ac to be significantly different in yield. Late Maturity Trial (Table ) The number of hybrid entries was 5. The -year average was 89 bu/ac, hybrids had to average 76 bu/ac or higher to be in the top-yield group (TYG), and hybrids qualified. The test trial was unable to detect hybrid yield difference among entries tested for years, therefore all entries qualified for the top-yield group and there were no significant differences in yield among hybrids tested years. The 998 average was 7 bu/ ac, hybrids had to average 7 bu/ac or higher to be in the top-yield group, 6 hybrids qualified. Hybrids had to differ by 6 bu/ac to be significantly different in yield. C 5, 998 corn trials I 5

8 Table A. Soil classification and land preparation. LOCATION BROOKINGS WATERTOWN FRANKFORT BERESFORD ARMOUR COLTON SOIL TYPE BRANDT SIL. CL. BROOKINGS SILTY CLAY LOAM BEOTIA SILT LOAM TRENT SILTY LOAM EAKIN-ETHAN COMPLEX VIBORG SILTY CLAY LOAM SEEDBED, PREVIOUS CROP CONV., SPRING WHEAT CONV., OATS NO-TILL, SOYBEAN CONV., OATS NO-TILL, SOYBEAN STUBBLE MIN.-TILL, SOYBEAN STUBBLE CONV. = CONVENTIONAL TILLAGE, NO-TILL MIN.-TILL = MINIMUM TILLAGE. NO TILLAGE, AND Table B. Test trial cooperators, locations, 998 seeding and harvest dates. DATE DATE COOPERATORS LOCATION SEEDED HARVESTED ROBERT CLARK ARMOUR MAY 5 OCT. S.E. RESEARCH FARM BERESFORD MAY 7 OCT. SDSU AGRONOMY FARM BROOKINGS APR 8 OCT. GREG VANZANTEN (LATE MATURITY) COLTON APR 5 OCT. 4 GREG VANZANTEN (EARLY MATURITY) COLTON APR 5 NOV. 6 N.E. RESEARCH FARM WATERTOWN MAY OCT. 6 STEVE MASAT FRANKFORT APR OCT. C 5, 998 corn trials / 6

9 Table C. Nearest station precipitation and heat unit or Growing Degree Day data for 998 (Source: S.D. Automatic Weather Data Network). STATION DATA APR MAY JUN JUL AUG SEP OCT TOTAL ARMOUR PRECIP.TOTAL(in.) PRECIP.DEPARTURE AIRPORT GDD'S TOTAL* GDD DEPARTURE N/A N/A N/A N/A N/A N/A N/A N/A BROOKINGS PRECIP.TOTAL(in.) PRECIP.DEPARTURE NE GOD'S TOTAL GDD DEPARTURE CENTERVILLE PRECIP.TOTAL(in.) PRECIP.DEPARTURE SE GOD'S TOTAL GDD DEPARTURE REDFIELD PRECIP.TOTAL(in.) PRECIP.DEPARTURE NE GOD'S TOTAL** GDD DEPARTURE N/A N/A N/A N/A N/A N/A N/A N/A SIOUX FALLS PRECIP.TOTAL(in.) PRECIP.DEPARTURE AIRPORT GOD'S TOTAL GDD DEPARTURE WATERTOWN PRECIP.TOTAL(in.) PRECIP.DEPARTURE AIRPORT GOD'S TOTAL GDD DEPARTURE *Growing Degree Day= ((Daily Max.Temp<=86 F. + Daily Min.Temp>=5 F.)/) - 5 The maximum number of GGD's that can accumulate per day is 8 and the minimum number per day is zero. **This location was missing 4 days of data in July C 5, 998 corn trials / 7

10 Table D. Entries and their yield table locations for the 998 corn hybrid performance trials. NO. BRAND & HYBRID TABLE NO. NO. BRAND & HYBRID TABLE NO. CARGILL 677,,5,7 5 SANDS SOI 967 6,8, CARGILL 47 4,6,7 SANDS SOI 987 CARGILL SANDS SOI 98 4 CARGILL 6888, SANDS SOI 98 5,9 5 CARGILL CARGILL 77, AS GROW RX49 4,6,7 7 CARGILL 6 8,, AS GROW RX6 8,, 8 CARGILL 777,,5 AS GROW RX7, 9 CARGILL 4,4,6,7 CARGILL 48 4,6,7,9 6 AS GROW RX CARGILL 5BT, 6 AS GROW RX5 CARGILL 8,, 6 AS GROW RX7 8,, 6 AS GROW RXSOSBT 8,, DEKALB DK477,,5 4 DEKALB DK6 4,8,, 64 GARST DEKALB DK47 65 GARST 864 6,7,9 6 DEKALB DK449,5 66 GARST P84 7 DEKALB DK45 67 GARST 877,,5,7,9 8 DEKALB DK44,,5 68 GARST 878HPH 5 9 DEKALB DK49BTX,,5,7,9 69 GARST 8766,,5 DEKALB DK 6,7 7 GARST N69 DEKALB DK54 4,6,7,9 7 GARST 88, DEKALB DK545BTY 4,6,7, 7 GARST , DEKALB DK 7,9 7 GARST 86IT 4 DEKALB DK6BTX 74 GARST 86IT 4,, 5 DEKALB DKBTY 8, 75 GARST 85 GLS/IT 8,, 6 DEKALB DK5BTX 8,, DEKALB DK66BTX 76 GOLDEN HARVEST H-547 8, 77 GOLDEN HARVEST H-9 4,6,7,9, 8 MALLARD UC-89-A 78 GOLDEN HARVEST H-9 9 MALLARD UC-44-A 79 GOLDEN HARVEST H-8 5 MALLARD UC-5-A 8 GOLDEN HARVEST H-65,.MALLARD UC GOLDEN HARVEST H-5 5 MALLARD UC GOLDEN HARVEST H-9, 8 GOLDEN HARVEST H-98 4,7, DAIRYLAND STEALTH GOLDEN HARVEST H- DAIRYLAND STEALTH-4,5 85 GOLDEN HARVEST H- 8,, 5 DAIRYLAND STEALTH-46 6 DAIRYLAND STEALTH-5 86 WILSON 9 9, ASGROW RX5 6 7 DAIRYLAND STEALTH WILSON 664, 8 DAIRYLAND STEALTH-5,5 88 WILSON DAIRYLAND STEALTH- 89 WILSON DAIRYLAND STEALTH-4, 9 WILSON E6, 4 DAIRYLAND STEALTH-49 9 WILSON 475PT, 4 DAIRYLAND STEALTH-55 9 WILSON E4, 44 DAIRYLAND DST DAIRYLAND DST TOP FARM TFSX,4,6,7 46 DAIRYLAND STEALTH-9 94 TOP FARM TFSX 4,6 95 TOP FARM TFSX 96,,5 47 SANDS SOI 945 6,7 96 TOP FARM TFSX,,5,7 48 SANDS SOI TOP FARM TFSX 8 49 SANDS SOI 96, 98 TOP FARM TFSX,4,6,7 so SANDS SOI 97 7,9 99 KAYS TAR KX-777 6,8,, 5 SANDS SOI KAY STAR KX-4 C 5, 998 corn trials I 8

11 TABLE D (CONTINUED). ENTRIES AND THEIR YIELD TABLE LOCATIONS FOR 998. NO. BRAND & HYBRID TABLE NO. NO. BRAND & HYBRID TABLE NO. KAYSTAR KX-5 KAYSTAR KX-65 KAYSTAR KX-88 4 KAYSTAR KX KAYSTAR KX-78 6 KALTENBERG 79 7 KALTENBERG 94 8 KALTENBERG KALTENBERG 489 KALTENBERG KALTENBERG KALTENBERG 66 KALTENBERG 6 4 KALTENBERG 68 5 KALTENBERG 69 6 KALTENBERG 7 7 KALTENBERG 7,5,4,7,9 6,8,5,5 6,7 6, KRUGER EX87 5 KRUGER K KRUGER EX88 KRUGER EX89 KRUGER K-99 KRUGER K-98 KRUGER K-994 JACOBSEN JS JACOBSEN JS465 6 JACOBSEN JS476 6 JACOBSEN JS JACOBSEN JS45BT 64 JACOBSEN JS FONTANELLE FONTANELLE FONTANELLE ,6,7,9, 6,7,9, 4,6,7,9, 6,7,9, 8,, 8,, 9 5, 9, 8 LG SEEDS LG 9 LG SEEDS LG LG SEEDS LG 447 LG SEEDS LG 47 LG SEEDS LG 48 LG SEEDS LG 5 4 LG SEEDS LG 7 5 LG SEEDS LG 66 6 STAUFFER 46 7 STAUFFER 7 8 STAUFFER 4 9 STAUFFER 5 KRUGER K-964A KRUGER K-979 KRUGER K-95 KRUGER K-98 4 KRUGER K KRUGER K KRUGER K KRUGER K KRUGER K-99A 9 KRUGER K KRUGER K-99 4 KRUGER K-98 4 KRUGER K KRUGER K KRUGER K KRUGER EX9 46 KRUGER K-99A 47 KRUGER K KRUGER EX8 49 KRUGER EX85 5 KRUGER K KRUGER K-986B , 6,7,9,,,5 4,6,7,9,,5 9 8,,,5,,5,7,,5,,5,7,,5,7,9,4 4,6,7,9 4,7,9 68 PAYCO PAYCO NC NC NC NC HOEGEMEYER 75 HOEGEMEYER 6 76 HOEGEMEYER 7 77 HOEGEMEYER 6 78 HOEGEMEYER HOEGEMEYER 64IMI 8 HOEGEMEYER HOEGEMEYER WX 8 TERRA TR 87 8 TERRA E8 84 TERRA E8 85 TERRA E TERRA E988IT 88 TERRA E TERRA TR 47 9 TERRA ElBT 9 TERRA El89IT 9 TERRA TR 97 9 TERRA TR 7IT 94 M-W GENETICS G M-W GENETICS G M-W GENETICS G M-W GENETICS G M-W GENETICS G M-W GENETICS G 69,, 4,7,9 7,9, 8,, 7, 8,,,,5,5 6,7,9, 9, 8,, 8,,, 9 8,, 5,7,9 C 5, 998 corn trials I 9

12 TABLE D (CONTINUED). ENTRIES AND THEIR YIELD TABLE LOCATIONS FOR 998. NO. BRAND & HYBRID TABLE NO. NO. BRAND & HYBRID TABLE NO. M-W GENETICS G 696 EPLEY EX4 EPLEY EX5 EPLEY EX68 4 EPLEY EX4 5 EPLEY EX6 6 EPLEY EX46 7 EPLEY EX 8 EPLEY EX4 9 EPLEY EX5 EPLEY E44 EPLEY EX6 EPLEY El5BT MUSTANG DX7 4 MUSTANG DX4 5 MUSTANG DX 6 MUSTANG DX5 7 MUSTANG 85 8 MUSTANG 9 9 MUSTANG 9 MUSTANG DX4 MUSTANG DX46 MUSTANG DX66 MUSTANG DX75 4 RENZE RENZE RENZE RENZE RENZE 68 9 RENZE 67 RENZE 8BT RENZE 848BT,5 6,, 6,9,,,,6,9,5,5,9. 6,, 9,,5,5,5,5 6,7,9,, 7,9, 8,, 8,,, 7,9, 8,, 4 4 WENSMAN MAX WENSMAN MAX 7 46 WENSMAN MAX 7 47 WENSMAN MAX WENSMAN W 4 49 WENSMAN W 47 5 WENSMAN W WENSMAN MAX 7 5 WENSMAN W 47 5 WENSMAN W WENSMAN W 8 BT WENSMAN W BT ENESTVEDT'S E-65 ENESTVEDT'S E-6 ENESTVEDT'S E-69 DENBESTEN DB89 6 DENBESTEN DB89 6 DENBESTEN DB695 6 DENBESTEN DB696 6 DENBESTEN OENBESTEN DENBESTEN DB86 66 DENBESTEN DB DENBESTEN DB68 68 DENBESTEN DENBESTEN 85 7 OENBESTEN DB6 7 HYLAND SEEDS HL 5 7 HYLAND SEEDS HL 55 7 HYLAND SEEDS HL HYLAND SEEDS HL 64,,5,,5,7,,5,7,,5,7,,5,,5,,5,7,,5,,5,7,4,6,7,,5,,5,5 6,,5,,5,,5,,5,4,6,7,9,4,6,7,9, 4,6,8,, 4,6,7,9, 8,, 8,, 8,, 8,,,5,5,5,5 (, MYCOGEN 75 MYCOGEN 5 4 MYCOGEN 95 5 MYCOGEN 4 6 MYCOGEN 5 7 MYCOGEN 66IMI 8 MYCOGEN 75 9 MYCOGEN MYCOGEN 6 4 MYCOGEN 8 4 MYCOGEN 4 MYCOGEN 7 8,,,,5,,5 6, 8,,,6,7 4,6,7,9, 4,6,8,,,4,6,7, C 5, 998 corn trials / O

13 Table E. Mailing addresses of seed brands entered in the 998 corn hybrid performance trials. SEED BRAND As grow Cargill Dairyland Dekalb Den Besten Domestic Enestvedt Epley Bros. Fontanelle Garst Hoegemeyer Hyland Interstate Payee Golden Harvest Jacobsen Kaltenberg Kays tar Kruger LG Mallard Midwest Mycogen NC+ Renze Sand Stauffer Terra Top Farm Wensman Wilson MAILING ADDRESS Main St., Mapleton, MN 65 PO Box 45, Minneapolis, MN 44 PO Box 9, West Bend, WI 5-9 Sycamore Rd., Dekalb, IL 65 Box 896, Platte, SD 69 6 S. Washington, Madison, SD 4 RRl Box 6, Sacred Heart, MN 85 PO Box, Shell Rock, IA th ST, Nickerson, NE N. Oakridge RD, Brandon, SD 5 7 Hoegemeyer Rd, Hooper, NE Malborough St., Blenheim, Ontario, Nopiao Box 8 5 Prairie Parkway, West Fargo, ND 78 J.C. Robinson Blvd PO Box A, Waterloo, NE th St Box 79, Lake View, IA Hwy 9, PO Box 78, Waunakee, WI PO Box 947, 7 rd St. SW, Huron, SD 5 Highway East Box A, Dike IA 4 Country RD F, PO Box 88, Tekamah, NE 686 West Broadway, Plainview, MN 964 PO Box, Carroll, IA 54 4 Corporate Center Curve, St. Paul, MN N. th, Lincoln, NE Kittyhawk Ave., Carroll, IA 54 Box 648, Marcus IA 55 PO Box 68, Aurora, NE th St., Sioux City, IA 5 PO Box 85, Cokato, MN PO Box 9, Wadena, MN Hwy. 44, Harlan, IA 5 C 5, 998 corn trials /

14 Table. 998 corn hybrid performance trial results - Watertown NE Research Farm earl maturit - 95 days or less, plots thinned to a population of 6, 6 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) (lb) ACRE (%) ( % ) ******* ENTRIES TESTED TWO YEARS ******* WENSMAN MAX WENSMAN MAX WENSMAN W WENSMAN MAX MUSTANG DX DAIRYLAND STEALTH DAIRYLAND STEALTH DEKALB DK DAIRYLAND STEALTH ENESTVEDT'S E WENSMAN W KAYSTAR KX WENSMAN W MYCOGEN GOLDEN HARVEST H ASGROW RX MYCOGEN MYCOGEN TOP FARM TFSX CARGILL ******* ENTRIES TESTED ONE YEAR ******* MUSTANG DX GARST DEKALB DK DENBESTEN DB KALTENBERG PAYCO GARST WENSMAN W BT DEKALB DK MUSTANG DX WENSMAN MAX MALLARD UC-89-A 66 MALLARD UC-44-A GOLDEN HARVEST H MUSTANG 9 66 GOLDEN HARVEST H-9 66 MUSTANG ENESTVEDT'S E DENBESTEN DB KALTENBERG C 5, 998 corn trials /

15 TABLE (CONTINUED ). WATERTOWN, EARLY MATURITY - 95 DAYS OR LESS. YIELDS AT 5. 5% MOIST. -YR 998 BRAND & HYBRID (Bu/A ) 998 GRAIN BU. PLANTS MOIST. WT. PER (% ) (lb ) ACRE STALKS LODGED ( % ) WENSMAN W 8 BT 5 DENBESTEN DB89 5 DAIRYLAND STEALTH-9 5 EPLEY EX 49 M-W GENETICS G KRUGER K DAIRYLAND DST KRUGER K GARST N69 47 ASGROW RX5 46 TERRA E8 44 DAIRYLAND DST MUSTANG 85 9 TERRA E AVERAGE : 5 LSD (5%): 6 MIN. TOP YIELD VALUE* : 47 COEF. OF VARIATION#: NS** *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials /

16 Table. 998 corn hybrid performance trial results - Watertown NE Research Farm late maturit - 96 days or more, thinned to a population of 6, 6 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) ( % ) (lb) ACRE (%) ******* ENTRIES TESTED TWO YEARS ******* DEKALB DK CARGILL KRUGER K MUSTANG DX KRUGER K MYCOGEN KRUGER K GARST WENSMAN MAX CARGILL TOP FARM TFSX 7 66 MYCOGEN PAYCO EPLEY EX TOP FARM TFSX ******* ENTRIES TESTED ONE YEAR ******* MYCOGEN DENBESTEN DB GARST KALTENBERG TERRA E WENSMAN W KRUGER K WENSMAN W KRUGER EX KAYSTAR KX M-W GENETICS G DEKALB DK49BTX KALTENBERG MUSTANG DX TOP FARM TFSX EPLEY EX KRUGER EX HYLAND SEEDS HL HYLAND SEEDS HL DENBESTEN DB HYLAND SEEDS HL HYLAND SEEDS HL KRUGER K-99A MALLARD UC-5-A KRUGER EX C 5, 998 corn trials /

17 TABLE ( CONTINUED ) WATERTOWN, LATE MATURITY - 96 DAYS OR MORE. YIELDS AT % MOIST. GRAIN BU. PLANTS -YR 998 MOIST. WT. PER BRAND & HYBRID (Bu/A ) (%) ( lb ) ACRE STALKS LODGED ( % ) TERRA E988IT EPLEY EX KRUGER K EPLEY EX5 66 DENBESTEN DB AVERAGE : 7 66 LSD (5%) : NS** 5 NS NS MIN. TOP YIELD VALUE* : 4 8 COEF. OF VARIATION#: NS *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials / 5

18 Table. 998 corn hybrid performance trial results - Frankfort Steve Masat farm no-till earl maturit - days or less, plots thinned to a population of 6, 6 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) (%) ( lb) ACRE## (% ) ******* ENTRIES TESTED TWO YEARS ******* CARGILL DEKALB DK WENSMAN MAX DEKALB DK GARST KRUGER K DAIRYLAND STEALTH KRUGER K WENSMAN MAX DAIRYLAND STEALTH TOP FARM TFSX WENSMAN MAX PAYCO WENSMAN W WENSMAN MAX MYCOGEN TOP FARM TFSX WENSMAN W KAYSTAR KX WENSMAN W CARGILL MY COGEN ******* ENTRIES TESTED ONE YEAR ******* WENSMAN W 8 BT KRUGER K-99A WENSMAN W GARST KRUGER K KRUGER EX GARST DENBESTEN DB DEKALB DK49BTX KRUGER K DENBESTEN PAYCO KRUGER K DEKALB DK DENBESTEN DB C 5, 998 corn trials / 6

19 TABLE (CONTINUED ). FRANKFORT, EARLY MATURITY - DAYS OR LESS. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A ) 998 GRAIN BU. PLANTS MOIST. WT. PER (%) (lb ) ACRE STALKS LODGED ( % ) GOLDEN HARVEST H-9 DENBESTEN DB696 NC+ 487 TERRA E988IT NC WENSMAN MAX 7 GOLDEN HARVEST H-65 WENSMAN W BT TERRA E987 KRUGER EX AVERAGE : LSD (5%): 9 MIN. TOP YIELD VALUE* : 5 COEF. OF VARIATION# : NS** *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. ##SOME POPULATIONS ARE LOWER THAN THE TARGET POPULATION DUE TO HIGH WINDS ON JULY 8 WHICH CAUSED SOME GREENSNAP. C 5, 998 corn trials / 7

20 Table corn hybrid performance trial results - Frankfort. Steve Masat farm. no-till, late maturity - days or more, thinned to a population of 6, 6 plants/acre. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A) 998 GRAIN BU. PLANTS STALKS MOIST. WT. PER LODGED ( % ) (lb) ACRE## ( % ) ******* ENTRIES TESTED TWO YEARS ******* DEKALB DK6 CARGILL 4 CARGILL 47 MYCOGEN 8 CARGILL MYCOGEN 6 TOP FARM TFSX KAYSTAR KX-65 TOP FARM TFSX ******* ENTRIES TESTED ONE YEAR ******* KRUGER EX87 DEKALB DK54 DEKALB DK545BTY KRUGER K-986B KRUGER K DENBESTEN DB86 GOLDEN HARVEST H-98 DENBESTEN DB675 DENBESTEN DB7 KRUGER K TOP FARM TFSX KRUGER EX88 WENSMAN W 497 ASGROW RX49 NC DENBESTEN DB5 GOLDEN HARVEST H-9 MYCOGEN KRUGER EX85 GARST 86IT AVERAGE : 69 LSD (5%) : MIN. TOP YIELD VALUE* : COEF. OF VARIATION#: *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. ##SOME POPULATIONS ARE LOWER THAN THE TARGET POPULATION DUE TO HIGH WINDS ON JULY 8 WHICH CAUSED SOME GREENSNAP. C 5, 998 corn trials / 8

21 Table corn hybrid performance trial results - Brookings SDSU Agronom Farm arl maturit - days or less, thinned to a population of 6, 6 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) (% ) ( lb ) ACRE (% ) ******* ENTRIES TESTED TWO YEARS ******* KRUGER K KRUGER K DEKALB DK GARST STAUFFER SANDS SOI M-W GENETICS G GARST 878HPH 8 66 MUSTANG DX DAIRYLAND STEALTH DEKALB DK CARGILL MYCOGEN MYCOGEN TOP FARM TFSX MUSTANG DX GOLDEN HARVEST H KAYSTAR KX ENESTVEDT'S E TOP FARM TFSX MUSTANG DX CARGILL GOLDEN HARVEST H ******* ENTRIES TESTED ONE YEAR ******* DEKALB DK HYLAND SEEDS HL HYLAND SEEDS HL MALLARD UC HYLAND SEEDS HL DEKALB DK49BTX DENBESTEN DB WENSMAN MAX DAIRYLAND STEALTH WENSMAN MAX JACOBSEN JS KRUGER EX WENSMAN W TERRA E HYLAND SEEDS HL C 5, 998 corn trials / 9

22 TABLE 5 (CONTINUED). BROOKINGS, EARLY MATURITY - DAYS OR LESS. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A) 998 GRAIN BU. PLANTS MOIST. WT. PER (%) (lb) ACRE STALKS LODGED (%) MUSTANG DX4 KRUGER K-99 WENSMAN W BT SANDS SOI 98 EPLEY EX WENSMAN W 47 WENSMAN W 8 BT GARST 8766 DENBESTEN DB695 WENSMAN MAX KALTENBERG 489 KALTENBERG 487 DENBESTEN DB89 KRUGER EX8 M-W GENETICS G DENBESTEN DB89 WENSMAN W 446 WENSMAN MAX 7 WENSMAN MAX 78 KRUGER K EPLEY EX WENSMAN W 4 TERRA E988IT KRUGER K-99A AVERAGE : 5 LSD (5%): 6 MIN. TOP YIELD VALUE* : 4 COEF. OF VARIATION#: NS** *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials /

23 Table corn hybrid performance trial results - Brookings SDSU Agronom Farm! late maturit - days or more, thinned to a population of 6, 6 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) ( % ) (lb) ACRE (%) ******* ENTRIES TESTED TWO YEARS ******* MYCOGEN GARST KRUGER K KAYSTAR J.Q{ MYCOGEN 6 66 ASGROW RX KRUGER K CARGILL MY COGEN CARGILL TOP FARM TFSX EPLEY EX EPLEY EX SANDS SOI EPLEY EX CARGILL ******* ENTRIES TESTED ONE YEAR ******* EPLEY E DENBESTEN DB TOP FARM TFSX KRUGER EX KRUGER EX KAYSTAR J.Q{ DEKALB DK MYCOGEN 66IMI KRUGER K TOP FARM TFSX DENBESTEN DB DENBESTEN DB MALLARD UC SANDS SOI MUSTANG DX TERRA TR KALTENBERG 9 66 GOLDEN HARVEST H MYCOGEN KRUGER K C 5, 998 corn trials I

24 TABLE 6 (CONTINUED). BROOKINGS, LATE MATURITY - DAYS OR MORE. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A) 998 GRAIN BU. PLANTS MOIST. WT. PER ACRE (%) ( lb ) STALKS LODGED ( % ) DENBESTEN DB8 6 WENSMAN W 497 STAUFFER 5 DEKALB DK54 KRUGER EX ENESTVEDT 'S E-69 DEKALB DK545BTY ASGROW RX49 KALTENBERG AVERAGE : 5 LSD (5%) : MIN. TOP YIELD VALUE* : 54 COEF. OF VARIATION# : NS** *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials I

25 Table corn hybrid performance trial results - Coltons Greg Vanzanten farm earl maturit - 5 days or less, thinned to a population of 7,878 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) ( % ) (lb ) ACRE ( % ) ******* ENTRIES TESTED TWO YEARS ******* KRUGER K MYCOGEN NC MYCOGEN GARST CARGILL KRUGER K HOEGEMEYER TOP FARM TFSX CARGILL CARGILL SANDS SOI SANDS SOI TOP FARM TFSX CARGILL ******* ENTRIES TESTED ONE YEAR ******* DEKALB DK545BTY TERRA TR DEKALB DK KRUGER EX RENZE 8BT 7878 DEKALB DK KRUGER K-986B KRUGER EX KRUGER EX TOP FARM TFSX WENSMAN W WENSMAN MAX GARST KRUGER K M-W GENETICS G WENSMAN W KRUGER EX MYCOGEN DEKALB DK49BTX MUSTANG DX KRUGER EX DEKALB DK GOLDEN HARVEST H KALTENBERG DENBESTEN C 5, 998 corn trials I

26 TABLE 7 (CONTINUED). COLTON, EARLY MATURITY - 5 DAYS OR LESS. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A) 998 GRAIN BU. PLANTS MOIST. WT. PER (%) (lb) ACRE STALKS LODGED ( % ) WENSMAN MAX 7 KALTENBERG KRUGER K-988 RENZE 667 DENBESTEN DB DENBESTEN DB7 WENSMAN W 446 HOEGEMEYER 7 ASGROW RX49 KAYSTAR KX WENSMAN MAX 7 GOLDEN HARVEST H-9 KRUGER K AVERAGE : 7 LSD (5%) : MIN. TOP YIELD VALUE* : 7 COEF. OF VARIATION#: *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials / 4

27 Table corn hybrid performance trial results - Colton Greg Vanzant n farm l te m turit - 6 days or more, thinned to a population of 7,878 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A) ( %) ( lb) ACRE ( %) ******* ENTRIES TESTED TWO YEARS ******* DEKALB DK MYCOGEN KAYSTAR KX MYCOGEN TERRA TR TOP FARM TFSX KRUGER K-99A MYCOGEN CARGILL M-W GENETICS G SANDS SOI ******* ENTRIES TESTED ONE YEAR ******* GOLDEN HARVEST H GOLDEN HARVEST H DENBESTEN DB DENBESTEN DB AS GROW RX55BT DEKALB DK5BTX DEKALB DKBTY RENZE RENZE 84 BBT RENZE 687 SB 7878 KRUGER K DENBESTEN DB HOEGEMEYER GARST 85 GLS/IT ASGROW RX DENBESTEN DB TERRA TR TERRA E89IT 7878 KALTENBERG KALTENBERG C 5, 998 corn trials I 5

28 TABLE 8 (CONTINUED). COLTON, LATE MATURITY - 6 DAYS OR MORE, YIELDS AT % MOIST. GRAIN BU. PLANTS -YR 998 MOIST. WT. PER BRAND & HYBRID (Bu/A) ( % ) (lb ) ACRE KRUGER K KAYSTAR KX DENBESTEN DB GARST CARGILL AS GROW RX AVERAGE : LSD (5%) : NS** NS MIN. TOP YIELD VALUE* : 69 7 COEF. OF VARIATION#: 8 6 STALKS LODGED ( % ) 5 *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials I 6

29 Table corn hybrid performance trial results - Armour. Robert Clark farm. no-till. early maturity - 5 days or less, thinned to a population of 6, 6 plants/acre. BRAND & HYBRID YIELDS AT 5.5% MOIST. 998 GRAIN BU. PLANTS -YR 998 MOIST. WT. PER (Bu/A) (%) (lb) ACRE ******* ENTRIES TESTED TWO YEARS ******* STALKS LODGED ( % ) WILSON 9 GARST 864 WILSON 98 KRUGER K-979 KRUGER K GARST 877 CARGILL 48 KRUGER K-976 EPLEY EX5 MYCOGEN EPLEY EX46 SANDS SOI 97 NC ******* ENTRIES TESTED ONE YEAR ******* RENZE 8BT EPLEY El5BT LG SEEDS LG 5 TERRA ElBT DEKALB DK KRUGER EX89 M-W GENETICS G 75 JACOBSEN JS4476 KRUGER K-988 KRUGER EX DEKALB DK54 KRUGER K-986B SANDS SOI 98 KRUGER EX87 TERRA TR DENBESTEN DB675 DEKALB DK49BTX M-W GENETICS G 78 EPLEY EX5 JACOBSEN JS KRUGER EX8 DENBESTEN DB7 KRUGER K-987 HOEGEMEYER RENZE C 5, 998 corn trials I 7

30 TABLE 9 (CONTINUED). ARMOUR, EARLY MATURITY - 5 DAYS OR LESS. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A) 998 GRAIN BU. PLANTS MOIST. WT. PER (%) ( lb ) ACRE STALKS LODGED ( % ) MUSTANG DX66 LG SEEDS LG 47 LG SEEDS LG 48 DENBESTEN DB5 KAYSTAR KX LG SEEDS LG 447 GOLDEN HARVEST H AVERAGE : 8 LSD (5%): 4 MIN. TOP YIELD VALUE* : 89 COEF. OF VARIATION# : NS** NS *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials / 8

31 Table. 998 corn hybrid performance trial results - Armour. Robert Clark farm. no-till. late maturity - 6 days or more, thinned to a population of 6, 6 plants/acre. BRAND & HYBRID YIELDS AT % MOIST. GRAIN BU. PLANTS -YR 998 MOIST. WT. PER (Bu/A ) (%) (lb) ACRE ******* ENTRIES TESTED TWO YEARS ******* STALKS LODGED ( % ) SANDS SOI 96 JACOBSEN JS465 CARGILL 6888 CARGILL 77 HOEGEMEYER GOLDEN HARVEST H-547 SANDS SOI 98 KRUGER K-98+ KRUGER K-95 MYCOGEN KRUGER K-98 MYCOGEN 8 KRUGER K-964A KRUGER K-99 KAYSTAR KX EPLEY EX4 HOEGEMEYER 6 EPLEY EX68 MYCOGEN 75 EPLEY EX CARGILL ******* ENTRIES TESTED ONE YEAR ******* DENBESTEN DB6 JACOBSEN JS45BT ASGROW RX55BT RENZE 686 GARST 86IT RENZE 848BT CARGILL 5BT TERRA E89IT KRUGER K-994 TERRA TR LG SEEDS LG GOLDEN HARVEST H- ASGROW RX7 KRUGER K-99 RENZE C 5, 998 corn trials / 9

32 TABLE (CONTINUED ). ARMOUR, LATE MATURITY - 6 DAYS OR MORE. YIELDS AT 5. 5% MOIST. -YR 998 BRAND & HYBRID (Bu/A ) 998 GRAIN BU. PLANTS MOIST. WT. PER (% ) (lb ) ACRE STALKS LODGED ( % ) DENBESTEN DB5 9 ASGROW RX6 9 DAIRYLAND STEALTH-49 9 TERRA TR 87 9 MYCOGEN 7 9 RENZE MYCOGEN 66IMI 89 DEKALB DK5BTX 88 DENBESTEN DB68 88 CARGILL 88 RENZE GARST 85 GLS/IT 87 WILSON E4 87 WILSON WILSON 475PT 8 EPLEY E44 8 WILSON E6 8 GARST 86IT 79 M-W GENETICS G DAIRYLAND STEALTH-4 79 HOEGEMEYER TERRA TR 7IT 76 DEKALB DK6 7 DENBESTEN DB68 67 DENBESTEN DB86 66 M-W GENETICS G KRUGER K ASGROW RX AVERAGE : LSD (5%) : 5 MIN. TOP YIELD VALUE* : 98 COEF. OF VARIATION#: NS** NS *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials /

33 Table. 998 corn hybrid performance trial results - Bere ford SE Research Farm. earl maturit - days or less, thinned to a population of 7,878 plants/acre. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID { Bu/A ) { % ) {lb) ACRE { % ) ******* ENTRIES TESTED TWO YEARS ******* LG SEEDS LG KAYSTAR KX ASGROW RX GARST P KRUGER K STAUFFER NC DEKALB DK HOEGEMEYER KRUGER K-964A WILSON TERRA TR DAIRYLAND STEALTH CARGILL ASGROW RX M-W GENETICS G EPLEY EX SANDS SOI SANDS SOI FONTANELLE FONTANELLE MUSTANG DX EPLEY EX CARGILL HOEGEMEYER ******* ENTRIES TESTED ONE YEAR ******* DEKALB DK5BTX RENZE GOLDEN HARVEST H KRUGER K RENZE 8BT KALTENBERG MUSTANG DX TERRA TR TERRA TR JACOBSEN JS GOLDEN HARVEST H DENBESTEN DB DAIRYLAND STEALTH RENZE 848 BT GARST 86IT C 5, 998 corn trials /

34 TABLE (CONTINUED ). BERESFORD, EARLY MATURITY - DAYS OR LESS. YIELDS AT % MOIST. GRAIN BU. PLANTS STALKS -YR 998 MOIST. WT. PER LODGED BRAND & HYBRID (Bu/A ) (%) (lb ) ACRE ( % ) KRUGER EX KAYSTAR KX KRUGER K RENZE DEKALB DK545BTY AS GROW RX55BT DEKALB DK6BTX KRUGER EX DEKALB DKBTY KALTENBERG JACOBSEN JS45BT MYCOGEN RENZE WILSON E EPLEY E5BT FONTANELLE WILSON TERRA EBT HOEGEMEYER 64 IMI 7878 CARGILL 5BT GARST TERRA E89IT WILSON 475PT DAIRYLAND STEALTH MUSTANG DX DENBESTEN DB GOLDEN HARVEST H GARST 85 GLS/IT EPLEY E DENBESTEN DB KRUGER K KRUGER EX DAIRYLAND STEALTH DENBESTEN DB MYCOGEN JACOBSEN JS CARGILL TERRA TR 7IT WILSON E DENBESTEN DB C 5, 998 corn trials /

35 TABLE (CONTINUED ). BERESFORD, EARLY MATURITY - DAYS OR LESS. BRAND & HYBRID YIELDS AT 5. 5% MOIST. -YR 998 (Bu/A ) 998 GRAIN BU. PLANTS MOIST. WT. PER (%) (lb) ACRE STALKS LODGED ( % ) AS GROW RX5 8 7 HOEGEMEYER 68 RENZE 667 HOEGEMEYER WX GOLDEN HARVEST H AVERAGE : 87 LSD (5%) : MIN. TOP YIELD VALUE* : 87 COEF. OF VARIATION#: NS** *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. C 5, 998 corn trials /

36 Table. 998 corn hybrid performance trial results - Beresford. SE Research Farm. late maturity - days or more, thinned to a population of 7,878 plants/acre. BRAND & HYBRID YIELDS AT 5.5% MOIST. -YR 998 (Bu/A) GRAIN MOIST. (%) 998 BU. PLANTS WT. PER (lb ) ACRE STALKS LODGED ( % ) ******* ENTRIES TESTED TWO YEARS ******* CARGILL 777 KAYSTAR KX-88 EPLEY EX68 STAUFFER 7 MYCOGEN WILSON 664 M-W GENETICS G 77 CARGILL 6888 MYCOGEN 75 SANDS SOI EPLEY EX4 SANDS SOI 95 CARGILL 6997 DEKALB DK66BTX KALTENBERG 7 MYCOGEN 7 LG SEEDS LG 66 DENBESTEN DB ******* ENTRIES TESTED ONE YEAR ******* LG SEEDS LG 7 RENZE 686 HOEGEMEYER 645 DENBESTEN DB5 RENZE EPLEY EX6 KALTENBERG AVERAGE : LSD (5 %) : MIN. TOP YIELD VALUE* : COEF. OF VARIATION# : 89 NS** NS *TOP YIELD - YIELDS WITHIN ONE LSD VALUE OF HIGHEST YIELD. **YIELD DIFFERENCES WITHIN A COLUMN ARE NOT SIGNIFICANT (NS). #A MEASURE OF EXPERIMENTAL ERROR ; A VALUE OF 5% OR LESS IS DESIRABLE. Published in accordance with an act passed In 88 by the 4th Legislative Assembly, Dakota Territory, eslabushing the Dakota Agricultural College and with the ad of re-organization passed In 887 by the 7th Legislative Assembly, which established the Agricultural Experiment Station at South Dakota State University. SOSU Is an Affirmative Adlon/Equal Opportunity Er>loyer (Male/Female) and offers all benefits, ser vices, education, and employment opportunities without regard for ancestry, age, race, citizenship, color, aeed, religion, gender, disability, nation al origin, sexual preference, or Vietnam Era veteran status. C 5, printed at $. each. December 998. C 5, 998 corn trials I 4