2007 Iowa Experimental Corn Trials

Transcription

1 2007 Iowa Experimental Corn Trials Wilmont, MN Farmington, MN Melvin Calumet Kanawha Nashua Pocahontas Belmond Holland Carroll Boone Ames Woodbine Davenport Lewis Crawfordsville Mount Pleasant Princeton, IL An electronic version (PDF format) of this document is available at Kendall R. Lamkey Nickolas J. Bowden Paul R. White Arnel R. Hallauer Iowa Agriculture Experiment Station Agronomy Department Ames, Iowa in cooperation with Agricultural Research Service U. S. Department of Agriculture AG157

2 Page 1 The results of the Iowa Agriculture Experiment Station Corn Trials are presented annually as a service to Iowa agriculture. The single-cross data presented herein are intended to provide preliminary information on the performance of open-pedigreed hybrids produced from released and unreleased inbred lines developed at ISU as well as combinations of public lines with foundation inbred lines. We also include lines released from other public breeding programs when they become available. The information should be of value to breeders, seed producers, and others who use experiment-station-developed lines as additional sources of germplasm in breeding programs. Further information on the performance of specific hybrids remains the responsibility of the producers of these hybrids. We do not use the information in this report to recommend or endorse any particular hybrid. In 2007, we grew two different trials Experiment 1, an early trial representing the maturity zone north of Highway 30, and Experiment 2, which was a late trial representing the maturity zone south of Highway 30. Experiment 1 was planted at 10 Iowa locations and Experiment 3 was planted at 9 Iowa locations (Tables 1a, 1b, and 1c). Planting dates were predominantly in the entire month of May. Most locations were harvested in late September and through the month of October, which is very typical for Iowa. The dates of planting and harvesting for each trial are shown in Table 1b and 1c. Conditions for planting, emergence, growth, and development in 2007 were inconsistent across the state. The spring had periods of excessive precipitation with multiple short planting timeframes. The growing season was very favorable for this year s corn crop with a timely rain and relatively cooler temperatures for pollination. Despite the periods of dry weather across the entire state of Iowa, the estimated average yield for 2007 was 171 bushels per acre for Iowa according to the National Agricultural Statistics Service of the USDA, which is somewhat less than the 173 bushels per acre reported in We have experienced good to excellent corn yields during the past 10 years within the

3 Page 2 state. The excellent yields of 2007 can be attributed to favorable maize-producing conditions with few biotic and abiotic stresses that were yield limiting. In the dry areas of the state, the higher than expected yields are due to more drought resistant hybrids and the high available water holding capacity of Iowa soils. Plots generally were 18 feet long (button to button) and included two rows spaced 30 inches (90 sq. ft. per plot) at most locations. There were minor variations in plot length among locations and cooperators, and the differences in plot size were considered in yield conversions. All yield and plant density conversions used button-to-button plot lengths to determine plot sizes. Seedbed preparation, fertilizer application, and cultivation practices were those normally recommended for optimum corn production at the locations where the trials were grown. All trials were planted and harvested with equipment adapted for planting and harvesting small experimental corn plots. There was no gleaning of either dropped ears or ears on broken stalks at harvest, but stand data and root and stalk lodging were recorded before harvest. Harvest losses due to root and stalk lodging and dropped ears are reflected for hybrids at the sites where lodging and dropped ears occurred. The single-cross hybrids tested were produced between lines released by ISU and other states. Because fewer lines are being released by other public breeding programs, fewer hybrids that included lines released from other states were available for testing. Data are presented for the lines that have experiment station designations and for several experimental lines from the ISU breeding program that have survived testcross and initial single-cross evaluations. Beginning with the 2004 report, we have changed the presentation of the data on the single crosses. Data at each location were analyzed with a mixed model where reps were included as a fixed effect and entries were included as a random effect (all locations were a RCB design). Best Linear Unbiased Predictors (BLUPs) are presented for each of the traits and are

4 Page 3 listed as deviations (+ or ) from the experiment mean, which is given at the bottom of each table. Presenting the traits as BLUPs that are + or the experiment mean allows one to immediately see if a hybrid was above or below the test mean. The disadvantage of using BLUPs is that it is harder to make statistical comparisons among hybrids. The rough equivalent of an LSD (0.05) would be to multiply the BLUP standard error (BLUP SE, given at the end of each table) by a factor of 2. We have also presented the minimum and maximum BLUPs, genetic variance component, error variance component, and repeatability of the trial for each trait to further aid you in determining the quality of data at each location. Data combined over environments were similarly analyzed with a mixed model with all factors being fixed except for entries and the entry x location interaction. Otherwise, the data presentations for the combined analyses are similar to those for the individual location analyses. In addition to the information presented at the end of the individual location tables, for the combined location tables we have provided the G x E variance component, the number of replications per environment, and the total number of environments of data available for each trait. All data are now presented in English units. Units for each trait are given in the column headers, and the units apply to both the experimental means as well as the BLUPs. For example, the numbers in the column need to be multiplied by 1000 to get actual plants per acre. The column was calculated assuming $4.95 per bushel for corn and $ per bushel per point drying cost. Table 23 of the report contains the publicly available pedigrees or derivations of the inbreds evaluated in single cross combinations.

5 Page 4 Of the 19 locations grown in 2007, 8 were grown by the ISU corn breeding program and 11 were grown by commercial plant breeders. We appreciate and value the industry support we receive for this trial, and would like to acknowledge the corn breeders and their companies for growing this test for us. The industry cooperators are listed in Table 1b and 1c of the report. An electronic version (PDF format) of this document is available at

6 Page 5 Table 1a Iowa yield trial data summaries. Experiment Data Early test 9-location summary Late test 12-location summary Inbred Pedigree Information Link Exp. 1 Exp. 3 Pedigrees Table 1b Iowa yield trial location information, sorted by experiment, then location. Location Cooperator Company Planting Date Harvest Date Worksheet / Data Link Early Ames Mike Fiscus Iowa State University 13-May 4-Oct 501 Early Belmond Ken Mayberry Mycogen 1-May 26-Sep 401 Early Boone Bob Getschman Monsanto 13-May 22-Sep 6501 Early Calumet Arnel Hallauer Iowa State University 30-Apr 23-Oct 101 Early Farmington, MN Les Getting Monsanto 7-May 12-Oct 6601 Early Kanawha Dave Rueber Iowa State University 10-May 22-Oct 201 Early Melvin Dave Nelson Monsanto 12-May 11-Oct 6701 Early Nashua Ken Pecinovsky Iowa State University 3-May 10-Oct 1001 Early Pocahontas Dave Nelson Monsanto 17-May 12-Oct 301 Early Wilmont, MN Dave Nelson Monsanto 2-May 2-Oct 6401 Late Ames Mike Fiscus Iowa State University 13-May 5-Oct 503 Late Carroll Dan Wenck Iowa State University 14-May 1-Oct 1203 Late Crawfordsville Kevin Van Dee Iowa State University 2-May 26-Sep 703 Late Davenport Matt Brenneman Monsanto 2-May 24-Sep 4103 Late Holland Matt Brenneman Monsanto 5-May 22-Oct 6103 Late Lewis Bernie Havlovic Iowa State University 5-May 25-Oct 2403 Late Mount Pleasant Sterling Weeda Panar 6303 Late Princeton (Kings), IL Mario Carlone Pioneer Hi-Bred Int. 4-May 5-Oct 4403 Late Woodbine Mike Claywell Monsanto 30-Apr 20-Oct 1403

7 Page 6 Table 1c Iowa yield trial location information, sorted by location. Location Cooperator Company Planting Date Harvest Date Worksheet / Data Link Early Ames Mike Fiscus Iowa State University 13-May 4-Oct 501 Late Ames Mike Fiscus Iowa State University 13-May 5-Oct 503 Early Belmond Ken Mayberry Mycogen 1-May 26-Sep 401 Early Boone Bob Getschman Monsanto 13-May 22-Sep 6501 Early Calumet Arnel Hallauer Iowa State University 30-Apr 23-Oct 101 Late Carroll Dan Wenck Iowa State University 14-May 1-Oct 1203 Late Crawfordsville Kevin Van Dee Iowa State University 2-May 26-Sep 703 Late Davenport Matt Brenneman Monsanto 2-May 24-Sep 4103 Early Farmington, MN Les Getting Monsanto 7-May 12-Oct 6601 Late Holland Matt Brenneman Monsanto 5May 5-May 22-Oct 6103 Early Kanawha Dave Rueber Iowa State University 10-May 22-Oct 201 Late Lewis Bernie Havlovic Iowa State University 5-May 25-Oct 2403 Early Melvin Dave Nelson Monsanto 12-May 11-Oct 6701 Late Mount Pleasant Sterling Weeda Panar 6303 Early Nashua Ken Pecinovsky Iowa State University 3-May 10-Oct 1001 Early Pocahontas Dave Nelson Monsanto 17-May 12-Oct 301 Late Princeton (Kings), IL Mario Carlone Pioneer Hi-Bred Int. 4-May 5-Oct 4403 Early Wilmont, MN Dave Nelson Monsanto 2-May 2-Oct 6401 Late Woodbine Mike Claywell Monsanto 30-Apr 20-Oct 1403

8 Page 7 Table 2. Agronomic data for single crosses grown near Calumet, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in TR4006/B DKC DKC MBS1236/B LH244/B B126/FR BSKRL1(HI)C /FR LH244/LH BSKRL1(HI)C /FR BS31(R)C B-B-B-B/FR SGI912/B DKC TR7245/B DKC DKC TR4006/FR BS31(R)C /FR MBS1236/FR LH244/FR MBS1236/FR DK TR4006/FR DKC FR3303/FR BS31(R)C /FR Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Ear Height Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

9 Page 8 Table 3. Agronomic data for single crosses grown near Kanawha, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in B126/FR MBS1236/B LH244/B LH244/LH TR7245/B BSKRL1(HI)C /FR DK MBS1236/FR BS31(R)C B-B-B-B/FR BSKRL1(HI)C /FR MBS1236/FR TR4006/B DKC DKC DKC DKC DKC TR4006/FR SGI912/B BS31(R)C /FR LH244/FR DKC FR3303/FR TR4006/FR BS31(R)C /FR Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability Ear Height

10 Page 9 Table 4. Agronomic data for single crosses grown near Pocahontas, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % $ lbs B126/FR MBS1236/B MBS1236/FR LH244/B BSKRL1(HI)C /FR DKC TR4006/B TR4006/FR DK MBS1236/FR BS31(R)C B-B-B-B/FR LH244/FR DKC FR3303/FR DKC TR4006/FR BS31(R)C /FR DKC LH244/LH SGI912/B TR7245/B DKC BSKRL1(HI)C /FR BS31(R)C /FR DKC Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

11 Page 10 Table 5. Agronomic data for single crosses grown near Belmond, Iowa Pedigree Back to Table 1 bu/ac x 1000 % $ lbs MBS1236/B BSKRL1(HI)C /FR DKC MBS1236/FR MBS1236/FR DKC LH244/LH DKC DKC B126/FR BS31(R)C /FR DKC TR7245/B DKC BSKRL1(HI)C /FR LH244/B TR4006/B TR4006/FR BS31(R)C B-B-B-B/FR TR4006/FR SGI912/B LH244/FR FR3303/FR DK BS31(R)C /FR Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

12 Page 11 Table 6. Agronomic data for single crosses grown near Ames, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs MBS1236/B LH244/LH MBS1236/FR MBS1236/FR B126/FR TR4006/FR DKC BSKRL1(HI)C /F BSKRL1(HI)C /F DK TR4006/B BS31(R)C B-B-B DKC TR4006/FR TR7245/B DKC DKC DKC LH244/FR FR3303/FR SGI912/B LH244/B DKC BS31(R)C /FR BS31(R)C /FR Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit ########## Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

13 Page 12 Table 7. Agronomic data for single crosses grown near Nashua, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in MBS1236/FR MBS1236/FR BSKRL1(HI)C /FR MBS1236/FR MBS1236/B BS31(R)C B-B-B-B/FR B126/FR BSKRL1(HI)C /FR DKC DKC DKC DKC DK DKC BS31(R)C /FR LH244/FR TR4006/FR LH244/B DKC FR3303/FR LH244/LH TR4006/FR BS31(R)C /FR TR4006/B SGI912/B TR7245/B Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit ####### Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability Ear Height

14 Page 13 Table 8. Agronomic data for single crosses grown near Wilmont, Minnesota. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs MBS1236/FR B126/FR LH244/B DKC MBS1236/B BSKRL1(HI)C /FR BS31(R)C B-B-B-B/FR MBS1236/FR BSKRL1(HI)C /FR FR3303/FR TR4006/FR DKC BS31(R)C /FR DKC DK LH244/LH SGI912/B LH244/FR DKC DKC TR4006/B TR4006/FR BS31(R)C /FR TR7245/B DKC Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit ####### Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

15 Table 9. Agronomic data for single crosses grown near Boone, Iowa Plants Pedigree yield per ha rank root stalk Back to Table 1 q/ha x 1000 % % % $ lbs MBS1236/FR MBS1236/B DKC BS31(R)C B-B-B-B/FR BSKRL1(HI)C /FR DKC DK SGI912/B MBS1236/FR BS31(R)C /FR LH244/LH FR3303/FR TR7245/B TR4006/B BSKRL1(HI)C /FR LH244/FR DKC TR4006/FR DKC LH244/B BS31(R)C /FR B126/FR DKC TR4006/FR DKC Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit ####### Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability Page 14

16 Page 15 Table 10. Agronomic data for single crosses grown near Farmington, Minnesota. Plants Pedigree yield per ha rank root stalk Back to Table 1 bu/ac x 1000 % % % $ lbs B126/FR DKC DKC FR3303/FR MBS1236/FR LH244/FR TR4006/FR BS31(R)C /F BS31(R)C /F BS31(R)C B BSKRL1(HI)C MBS1236/B LH244/B SGI912/B TR4006/B TR7245/B LH244/LH BSKRL1(HI)C TR4006/FR MBS1236/FR DK DKC DKC DKC DKC Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

17 Page 16 Table 11. Agronomic data for single crosses grown near Melvin, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % $ lbs B126/FR MBS1236/B MBS1236/FR MBS1236/FR DKC BSKRL1(HI)C /FR DK DKC LH244/LH TR7245/B BS31(R)C B-B-B-B/FR TR4006/FR DKC DKC BSKRL1(HI)C /FR TR4006/FR LH244/B DKC TR4006/B SGI912/B BS31(R)C /FR DKC FR3303/FR BS31(R)C /FR LH244/FR Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

18 Page 17 Table 12. Agronomic data for single crosses grown in Experiment 1. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs in MBS1236/B MBS1236/FR MBS1236/FR BSKRL1(HI)C /FR B126/FR BS31(R)C B-B-B-B/F DKC BSKRL1(HI)C /FR LH244/LH LH244/B DK DKC TR4006/B DKC TR4006/FR LH244/FR DKC TR4006/FR DKC TR7245/B Ear Height SGI912/B FR3303/FR BS31(R)C /FR DKC BS31(R)C /FR Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit E+08 Genetic Variance Lower Limit G X E Variance G X E Variance Upper Limit ######## G X E Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Number of environments Number of replications Repeatability

19 Page 18 Table 13. Agronomic data for single crosses grown near Ames, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs in BSCB1(R)C16/B SGI912/2/B97/B95) BS31(R)C B-B-B-B/B BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/B BS11(FR)C15/B BS10(FR)C12) B-B-B/ BSKRL1(HI)C /B LH244/B SGI912/B BS31(R)C B-B-B-B/B BSKRL1(HI)C /2/B97/B BSKRL1(HI)C /B LH244/2/B97/B99) BSKRL1(HI)C /2/B90/B SGI890/B LH331/LH LH332/B LH198/B BS10(FR)C12) B-B-B/ SGI890/B TR7245/2/B97/B95) TR7245/B B129/TR B130/B BSKRL4(HI)C2/B SGI890/B B130/2/B97/B95) B B129/BS32(R)C BS10(FR)C12) B-B-B/ B129/B TR7245/B BS31(R)C /B SGI912/B LH198/B SGI912/B BSKRL1(HI)C /B BSKRL1(HI)C B-B-B-B/L BS31(R)C B-B-B-B/TR BS31(R)C /TR LH332/LH SGI890/B BS10(FR)C12) B-B-B/T B129/SGI SGI890/2/B97/B95) Ear Height

20 Page 19 Table 13. Agronomic data for single crosses grown near Ames, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs in RX715RR2/YGCB B129/BS32(R)C SGI912/TR SGI912/B RX Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability Ear Height

21 Page 20 Table 14. Agronomic data for single crosses grown near Crawfordsville, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs BS10(FR)C12) B-B-B/ BSKRL1(HI)C /B BSCB1(R)C16/B BS10(FR)C12) B-B-B/ BS31(R)C B-B-B-B/B B129/TR BS10(FR)C12) B-B-B/T BS11(FR)C15/B B129/BS32(R)C BSKRL4(HI)C2/B BSKRL1(HI)C B-B-B-B/L SGI912/B BS31(R)C /TR BS31(R)C B-B-B-B/B BS10(FR)C12) B-B-B/B B130/2/B97/B95) B BS10(FR)C12) B-B-B/ B129/SGI BS10(FR)C12) B-B-B/ B130/B BS31(R)C /B /B BSKRL1(HI)C /B LH331/LH BS31(R)C B-B-B-B/TR SGI912/B B129/BS32(R)C B129/B TR7245/B LH198/B LH244/2/B97/B99) SGI890/B BSKRL1(HI)C /2/B97/B SGI890/B RX715RR2/YGCB SGI890/2/B97/B95) LH332/B TR7245/B RX BSKRL1(HI)C /2/B90/B SGI890/B TR7245/2/B97/B95) BSKRL1(HI)C /B LH198/B LH244/B SGI912/2/B97/B95)

22 Page 21 Table 14. Agronomic data for single crosses grown near Crawfordsville, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs SGI912/B SGI912/TR LH332/LH SGI890/B SGI912/B Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

23 Page 22 Table 15. Agronomic data for single crosses grown near Carroll, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in BS10(FR)C12) B-B-B/ BS31(R)C B-B-B-B/B BSKRL1(HI)C /B BSCB1(R)C16/B LH244/B BSKRL4(HI)C2/B SGI912/TR BS10(FR)C12) B-B-B/ B130/B BS10(FR)C12) B-B-B/ LH244/2/B97/B99) BSKRL1(HI)C /B BS31(R)C B-B-B-B/TR BS31(R)C B-B-B-B/B BS10(FR)C12) B-B-B/B BS10(FR)C12) B-B-B/ TR7245/B BS10(FR)C12) B-B-B/T B130/2/B97/B95) B LH198/B BSKRL1(HI)C /2/B90/B9 BSKRL1(HI)C /2/B90/B TR7245/B LH198/B BS11(FR)C15/B B129/TR B129/BS32(R)C LH332/LH SGI912/2/B97/B95) SGI912/B BSKRL1(HI)C /2/B97/B LH332/B SGI890/B BS31(R)C /B SGI912/B BSKRL1(HI)C /B B129/SGI B129/B TR7245/2/B97/B95) SGI890/2/B97/B95) RX SGI890/B BS31(R)C /TR SGI912/B LH331/LH B129/BS32(R)C Ear Height

24 Page 23 Table 15. Agronomic data for single crosses grown near Carroll, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in SGI890/B SGI912/B BSKRL1(HI)C B-B-B-B/L RX715RR2/YGCB SGI890/B Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability Ear Height

25 Page 24 Table 16. Agronomic data for single crosses grown near Woodbine, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs BSKRL1(HI)C /B BS31(R)C B-B-B-B/B BSKRL1(HI)C /2/B97/B B130/2/B97/B95) B BS31(R)C B-B-B-B/B TR7245/B BSKRL1(HI)C /B BSKRL1(HI)C /B BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/B BS31(R)C B-B-B-B/TR B130/B LH244/2/B97/B99) LH198/B BS10(FR)C12) B-B-B/T SGI890/B SGI890/B LH332/B TR7245/B BSKRL4(HI)C2/B LH244/B BS10(FR)C12) B-B-B/ B129/B B129/TR B129/SGI BS31(R)C /B BSCB1(R)C16/B SGI912/2/B97/B95) BSKRL1(HI)C /2/B90/B BS11(FR)C15/B LH331/LH SGI890/B TR7245/2/B97/B95) LH198/B BS10(FR)C12) B-B-B/ B129/BS32(R)C BS31(R)C /TR SGI890/B SGI912/B SGI890/2/B97/B95) B129/BS32(R)C SGI912/B BSKRL1(HI)C B-B-B-B/L SGI912/TR

26 Page 25 Table 16. Agronomic data for single crosses grown near Woodbine, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs LH332/LH SGI912/B RX715RR2/YGCB SGI912/B RX Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

27 Page 26 Table 17. Agronomic data for single crosses grown near Lewis, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in B130/B LH198/B LH244/B LH332/B SGI890/B SGI912/B TR7245/B BSKRL1(HI)C /B BSKRL4(HI)C2/B BS31(R)C /B BS31(R)C B-B-B-B/B SGI890/B SGI912/B TR7245/B SGI890/B SGI912/B SGI912/B B129/B B129/SGI B129/TR B129/BS32(R)C B129/BS32(R)C BSKRL1(HI)C /B LH198/B SGI890/B Ear Height BS10(FR)C12) B-B-B/B BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/ BSKRL1(HI)C /B BS31(R)C B-B-B-B/B B130/2/B97/B95) B SGI890/2/B97/B95) SGI912/2/B97/B95) TR7245/2/B97/B95) BSKRL1(HI)C /2/B97/B BS31(R)C B-B-B-B/TR BSKRL1(HI)C B-B-B-B/L BS11(FR)C15/B BSCB1(R)C16/B BSKRL1(HI)C /2/B90/B LH244/2/B97/B99) BS10(FR)C12) B-B-B/T BS31(R)C /TR

28 Page 27 Table 17. Agronomic data for single crosses grown near Lewis, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ in Ear Height SGI912/TR LH332/LH LH331/LH RX RX715RR2/YGCB Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability

29 Page 28 Table 18. Agronomic data for single crosses grown near Davenport, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs LH244/2/B97/B99) BS10(FR)C12) B-B-B/ BS10(FR)C12) B-B-B/B BS31(R)C B-B-B-B/B BS10(FR)C12) B-B-B/ BSKRL1(HI)C /2/B90/B BS10(FR)C12) B-B-B/ SGI890/2/B97/B95) BS31(R)C B-B-B-B/B BSKRL1(HI)C /B BS11(FR)C15/B SGI912/B BSCB1(R)C16/B BS10(FR)C12) B-B-B/ BSKRL1(HI)C /2/B97/B B129/BS32(R)C B129/BS32(R)C LH198/B BS10(FR)C12) B-B-B/T SGI890/B BSKRL1(HI)C B-B-B-B/L BSKRL1(HI)C BBBB/L BSKRL4(HI)C2/B SGI912/B B129/B BSKRL1(HI)C /B SGI912/B BS31(R)C B-B-B-B/TR TR7245/2/B97/B95) SGI912/2/B97/B95) B129/TR B130/2/B97/B95) B B129/SGI TR7245/B TR7245/B SGI890/B SGI890/B LH332/LH LH332/B LH198/B B130/B BS31(R)C /B LH331/LH SGI912/TR LH244/B BSKRL1(HI)C /B

30 Page 29 Table 18. Agronomic data for single crosses grown near Davenport, Iowa. Pedigree Back to Table 1 bu/ac x 1000 % % % $ lbs BS31(R)C /TR RX RX715RR2/YGCB SGI890/B SGI912/B Experiment Mean Minimum Mean Maximum Mean BLUP SE Genetic Variance Genetic Variance Upper Limit Genetic Variance Lower Limit Error Variance Error Variance Upper Limit Error Variance Lower Limit Repeatability