Mississippi WHEAT & OAT

Transcription

1 Information Bulletin 421 August 2005 Mississippi WHEAT & OAT VAIETY TIALS, 2005 Vance H. Watson, Director Mississippi Agricultural & Forestry Experiment Station J. Charles Lee, President Mississippi State University Vance H. Watson, Vice President

2 NOTICE TO USE This Mississippi Agricultural and Forestry Experiment Station Information Bulletin is a summary of research conducted at locations shown on the map on the second page. It is intended for the use of colleagues, cooperators, and sponsors. The interpretation of data presented herein may change after additional experimentation. Information included herein is not to be construed either as a recommendation for use or as an endorsement of a specific variety or product by Mississippi State University or the Mississippi Agricultural and Forestry Experiment Station. This report contains data generated as part of the Mississippi Agricultural and Forestry Experiment Station research program. Joint sponsorship by the organizations listed on pages is gratefully acknowledged. Trade names of commercial products used in this report are included only for clarity and understanding. All available names (i.e., trade names, code numbers, chemical names, etc.) of varieties or products used in this research project are listed on pages

3 Mississippi Wheat and Oat Variety Trials, 2005 Bernie White Manager, Variety Evaluations Mississippi State University Frankie Boykin Manager Operations Black Belt Branch Experiment Station Brad A. Burgess esearch Associate II esearch Support Units Pat Gerard Statistician esearch Support Units Billy Johnson esearch Associate III Coastal Plain Branch Experiment Station Erick Larson Extension Grain Crops Specialist Plant and Soil Sciences Mississippi State University obert Martin County Extension Director Issaquena County Dee Perkins esearch Associate I Brown Loam Branch Experiment Station Don espess County Extension Director/ Agronomic Crops Bolivar County Jerry Singleton Area Extension Agent/ Agronomic Crops Leflore County Art Smith Area Extension Agronomic Crops Agent Tunica County Clarence E. Watson Associate Director MAFES Administration ecognition is given to Jessie Selvie, Jerry Nail, and Jason Horner, research technicians for the Variety Testing Program, for their assistance in packaging, planting, harvesting, and recording plot data; and Jeremy Hatfield, student worker in the Department of Experimental Statistics, for statistical analyses and computing assistance. This document was prepared by Jimmie Cooper, administrative secretary for MAFES esearch Support Units. It was published by the Office of Agricultural Communications, a unit of the Division of Agriculture, Forestry, and Veterinary Medicine at Mississippi State University.

4 TODD WILLIA FAM Olive Branch 1 G.. HADIN FAM Cleveland 3 DELTA BANCH Stoneville 5 ICKY BELK FAM Minter City 4 HEIGLE AND COX FAM Issaquena County 6 U MAFES HEADQUATES Starkville BLACK BELT BANCH Brooksville 2 BOWN LOAM BANCH aymond 8 COASTAL PLAIN BANCH Newton 7 Wheat and Oat Variety TEST LOCATIONS

5 Mississippi Wheat and Oat Variety Trials, 2005 INTODUCTION Small grains are grown throughout Mississippi. Wheat is the primary crop, followed by oats. Wheat and oat variety trials were conducted at seven locations in Mississippi in Wheat yields typically range from 40 to 60 bushels per acre and often produce 60 to 80 bushels per acre under good management and favorable weather conditions. Oat yields from 50 to 80 bushels per acre are common. POCEDUES Experimental Design. Experimental design for each crop species at each location was a randomized complete block with four replications. Plots consisted of seven 15-foot rows spaced 7 inches apart. Cultural Practices. Plots were limed and fertilized according to soil test recommendations. Foliar fungicides were not applied at branch stations to insure that varieties were evaluated under natural disease pressure. Fungicides at off-station locations were applied at producer discretion. Herbicides were applied as needed at each location for weed control. Seed Source. Seed of all private entries were supplied by participating companies. Public varieties were selected by the Technical Advisory Committee. Seed of all public varieties were breeder or foundation seed from the state that developed the variety. Planting ate. All seeds were packaged for planting at the rate of 20 seeds per foot of row for both crops. Plots were planted with a cone, spinner-divider planter. Yield. A plot combine was used to harvest the total plot area after the plots were trimmed to a standard length. Harvested seed were converted to bushels per acre (60 pounds per bushel for wheat, and 32 pounds per bushel for oats). Heading Date. At most locations, the heading date for each variety was recorded. This is the date when 50% of the heads were extended above the flag leaf. Plant Height. The height of plants was measured from the soil to the top of the spike or head. Lodging. Lodging was rated on a 1 to 5 scale: 1 = almost all plants erect; 2 = all plants leaning slightly or only a few plants down; 3 = all plants leaning moderately or 25% to 50% of plants down; 4 = all plants leaning considerably, or 50% to 80% of plants down; and 5 = all plants down. Seed Test Weight. The test weight for each variety was determined from a composite sample from all replications. Disease atings. All varieties were rated for development of leaf rust and Septoria leaf and Stagonospora glume blotch according to James Manual of Assessment Keys for Plant Diseases. At growth stages 10.5 (spikes emerged) and 11.1 (milky ripe), 10 plants were selected at random from each plot. The percentage of leaf area affected by each disease on the flag leaf was recorded. From these data, an assessment was made of the overall disease response of each variety. Mississippi Agricultural and Forestry Experiment Station 1

6 IMPOTANT FACTOS FO PODUCES Land Selection. Waterlogged soils often limit wheat productivity. Poorly drained, heavy soils of the Delta and bottomland areas of east Mississippi should be avoided. Seeding Methods. Timely and proper seeding techniques insure rapid, successful establishment of small-grain seedlings. Planting into a moist weedfree seedbed with a grain drill is the preferred seeding method for small grains. Modern drills are capable of seeding in many unprepared (no tillage) as well as traditionally prepared seedbeds. The optimum seeding depth ranges from 1 to 2 inches, depending upon soil moisture status and soil type. Deep seeding is recommended when soil moisture is marginally dry, particularly on light, sandy soils. Producers who do not have grain drills may rough in small grains by broadcast sowing on recently tilled soil and covering the seed with a light tillage operation, such as a harrow, field cultivator or shallow disking. Seeding rates should be increased approximately 25% when utilizing the rough in system to compensate for poorer establishment since seeding depth is random and no firming over the seed occurs with this method. When field conditions are too wet to permit tractor operations, or when over-seeding an existing crop, small grains may be aerially broadcast seeded. Seeding rates should be increased about 75% compared to drilled rates since surface establishment is extremely dependent upon ambient environmental conditions. Thus, aerial seeding is usually only recommended for late planted small grains since evaporation rates are much lower late in the fall and little time remains to seed using normal planting methods. Seeding ates. Normal seeding rates for planting with a drill vary from 80 to 100 pounds of seed per acre, depending upon the variety and planting date. The low rate should be used when planting at the normal date and the higher rates when planting late or when planting conditions are poor. If seed is broadcast and covered with a disk or field cultivator, 100 to 120 pounds of seed per acre should be planted. When seeding aerially, about 150 pounds per acre should be applied. Seeding rates are similar for oats. This should result in final plant stands of approximately 25 to 30 plants per square foot. Cold equirements. Winter varieties of small grains require a certain amount of cold weather (less than 40 F) before the plants will form seed heads. This process is called vernalization. Most of the wheat varieties planted in Mississippi require low temperatures to reproduce; oats do not. In some years, there is not enough cold weather in south Mississippi for some northern-adapted wheat varieties, resulting in little or no seed-head production. Normally, these varieties have late heading dates at south Mississippi locations. Check adaptation of unfamiliar varieties with an U Extension Service agent or seed company representative. Planting Dates. Planting before recommended planting dates often results in establishment difficulty, increased stress and pest problems (freeze injury, aphids, Hessian fly, and disease). Late planting may not expose wheat plants to cool temperatures long enough for proper development. ecommended planting dates vary according to the region: North Mississippi Oct 1 to Nov 05 Central Mississippi Oct 15 to Nov 25 South Mississippi Nov 1 to Dec 10 Disease Management. Several diseases may attack wheat and oat plants in Mississippi. Leaf rust, stripe rust, and several head diseases are very common. Planting disease-resistant varieties is the most practical and economical method to manage diseases; however, chemical control may be required to control severe outbreaks. Wheat variety reactions to prevalent diseases during this growing season are reported in Table 10. Fertilization. Keep soil ph 6 or higher. Growers should test and apply lime, phosphate, and potash according to soil analysis recommendations. If soybeans follow a wheat crop on heavy soils (clays, clay loams, and silt loams), apply phosphate 2 Mississippi Wheat and Oat Variety Trials, 2005

7 and potash for the soybean crop before planting the wheat. This practice is not recommended on sandy soils because potash may be leached away. Wheat generally requires 2 pounds of nitrogen for each bushel of grain produced. Apply approximately 25% of the nitrogen in the fall. If wheat is grown following corn, grain sorghum, or rice apply 30 to 40 pounds of nitrogen in the fall. Apply the balance of the nitrogen in the spring after dormancy breaks but before the second node is visible, which generally occurs from mid- February through mid-march. Weed Control. Mississippi State University Extension Service Publication 1532, Weed Control Guidelines for Mississippi, provides detailed information for controlling weeds in wheat and oats. For more specific information, refer to Extension Information Sheet 961, Small Grains Production. USE OF DATA TABLES AND SUMMAY STATISTICS The yield potential of a given variety cannot be measured with complete accuracy. Consequently, replicate plots of all varieties are evaluated for yield, and the yield of a given variety is estimated as the mean of all replicate plots of that variety. Yields vary somewhat from one replicate plot to another, which introduces a certain degree of error to the estimate of yield potential. This natural variation is often responsible for yield differences among different varieties. Thus, even if the mean yields of two varieties are numerically different, they are not necessarily significantly different in terms of yield potential. In other words, the ability to measure yield is not precise enough to determine whether such small differences are observed purely by chance or because of superior performance. The least significant difference (LSD) is an estimate of the smallest difference between two varieties that can be declared to be the result of something other than random variation in a particular trial. Consider the following example for a given trial: Variety Abe Bill Charlie LSD Yield 60 bu/a 55 bu/a 51 bu/a 7 bu/a The difference between variety Abe and variety Bill is 5 bushels per acre (60-55 = 5). This difference is smaller than the LSD (7 bushels per acre). Consequently, it is concluded that variety Abe and variety Bill have the same yield potential, since the observed difference occurred purely due to chance. The difference between variety Abe and variety Charlie is 9 bushels per acre (60-51 = 9), which is larger than the LSD (7 bushels per acre). Therefore, it is concluded that the yield potential of variety Abe is superior to that of variety Charlie, since the difference is larger than would be expected purely by chance. The coefficient of variation (CV) is a measure of the relative precision of a given trial and is used to compare the relative precision of different trials. The CV is generally considered an estimate of the amount of unexplained variation in a given trial. This unexplained variation can be the result of variation between plots, with respect to soil type, fertility, insects, diseases, drought stress, etc. Overall, the higher the CV, the lower the precision in a given trial. The coefficient of determination ( 2 ) is another measure of the level of precision in a trial and is also used to compare the relative precision of different trials. The 2 is a measure of the amount of variation that is explained, or accounted for, in a given trial. For example, an 2 value of 90% indicates that 90% of the observed variation in the trial has been accounted for in the trial, with the remaining 10% being unaccounted. The higher the 2 value, the more precise the trial. The 2 is generally considered a better measure of precision than the CV for comparison of different trials. Mississippi Agricultural and Forestry Experiment Station 3

8 WEATHE SUMMAY BY LOCATION Location 1 Todd Williams Farm, Olive Branch. Wheat plots were planted and harvested. Weak stands in part of the plot area resulted in varying yields across all four replications; therefore, the statistical analysis indicated that data were too variable to provide useful variety comparison information. Thus, data from this location are not published. Location 2 Black Belt Branch, Brooksville. Wheat and oat plots were planted into a moist seedbed after the field was harrowed with a field cultivator. The lower end of the plot area did not drain well, causing a thin stand in some plots. Weather conditions were normal during the growing season, and no extreme periods of cold or rain affected the crop. These conditions produced good yields. Stripe rust adversely affected some varieties, reducing yields. Harvest was completed on time with little delay. Location 3 G.. Harden Farm, Cleveland. After a wet November, it was cold in December and January. We experienced a very dry and mild spring. Stripe rust was a big problem on some plots, but no fungicides were applied. Harvest was delayed slightly by light showers. Location 4 icky Belk Farm, Minter City. The wheat plots were planted on time into a good seedbed with good moisture. The wheat came up to a good stand in all plots. Surface drainage was good. Overall weather conditions were normal with the exception of cool, wet weather during late April. Although some rust was found in mid- March, that cool, wet weather probably was the cause of stripe rust exploding in a few varieties during May. Weed and insect pressure were minimal. Harvest was very timely. Location 5 Delta Branch, Stoneville. Did not plant due to wet field conditions. Location 6 Heigle & Cox Farm, Issaquena County. Sufficient rain was received shortly after planting and the wheat came up to a good stand. ain was plentiful throughout the growing season until mid-march. From mid-march to May, rain was very scattered with one final heavy rain of more than 3 inches the last weekend in May. Temperatures were average for the area throughout the growing season. Stripe rust severely infested susceptible varieties well prior to heading and likely reduced grain yields and seed weights of those varieties substantially. Location 7 Coastal Plain Branch, Newton. The wheat and oat variety trials were planted into a seedbed that provided adequate moisture and good germination. Plant development was favorable during the good growing season. There were wet periods during March and April, but May was dry, and little disease was observed. There was little damage from birds, and harvest was accomplished in a timely manner. Although stripe rust greatly reduced yields in susceptible varieties, overall it was another good wheat and oat year. Location 8 Brown Loam Branch, aymond. Poor field drainage combined with wet weather led to a poor stand in some plots. Temperatures were moderate, while rainfall amounts were above normal. While deer still grazed the plots, the pressure was not as intense as last year. Significant levels of stripe rust and minimal levels of leaf rust and loose smut were observed. Table wheat yields at MAFES Black Belt Branch, Brooksville (Brooksville silty clay soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in Progeny / USG / Terral TV / Progeny / Dixie / DK XTJ / Armor AX / TV / Progeny / AgriPro Beretta / Vigoro V / UGA A / Progeny / Pioneer variety / AgriPro Natchez / Delta King / DK / Dixie / Continued. 4 Mississippi Wheat and Oat Variety Trials, 2005

9 Table 1 (continued) wheat yields at MAFES Black Belt Branch, Brooksville (Brooksville silty clay soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield 2 weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in LA95135D C / Progeny / Armor / Pioneer variety / Terral TV / Delta Grow / Dixie Bell DB / AgriPro Savage / Delta Grow / Pioneer variety XW03X / Terral TVX83W / Delta Grow / Dixie Bell DB / USG / Terral TV / UGA E / USG / Dixie / Delta King / Armor AX / Armor AX / Progeny EK EXP / DK / DK / Delta King / Armor AX / HBK / Dixie Bell DB / Delta Grow / Armor / AgriPro APW / AgriPro Panola / VA00W / DK XTJ / Armor / USG Exp / Pioneer variety / UGA E / DK / VA McCormick / Progeny EK EXP / NK Coker / Delta King / Delta King G / Dixie Bell DB / AgriPro APW / Terral TVX84W / Terral LA / USG / Progeny EK EXP / A Pat / Vigoro McIntosh / Pioneer variety / LA96140BUA / LA9560CA / DK XTJ / NK Coker / NK Coker / LA95181BUB / LA97113UC B / LA95283CA B / AGS / LA952D3-1-3-C / AGS / Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Planted November 2, 2004 Harvested June 8, 2005 Soil fertility: ph=6.4; P=M; K=M Fertilizer added: Preplant lb/a; Topdress lb/a Herbicide: None Previous Crop: Soybeans 2 See Procedures for a description of lodging scores. Mississippi Agricultural and Forestry Experiment Station 5

10 Table wheat yields at G.. Harden Farm, Cleveland (Forestdale silt loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in UGA E / UGA A / Pioneer variety XW03X / Terral LA / LA95181BUB / UGA E / AgriPro APW / DK XTJ / AgriPro Panola / LA9560CA / Armor AX / Delta King / LA97113UC B / DK / Terral TV / AgriPro APW / LA95283CA B / LA952D3-1-3-C / DK / Delta Grow / Armor AX / Delta Grow / Vigoro V / TV / Delta King / Dixie / Armor / USG / Progeny / Terral TV / Pioneer variety / Terral TVX83W / Dixie Bell DB / LA95135D C / Progeny / Dixie / Terral TV / LA96140BUA / Dixie Bell DB / AgriPro Beretta / Vigoro McIntosh / USG / Armor AX / Armor / A Pat / AgriPro Savage / Delta King / Progeny / Delta Grow / Delta King G / DK / Progeny / Dixie / Delta Grow / Armor / VA00W / AgriPro Natchez / Pioneer variety / Dixie Bell DB / Dixie Bell DB / Pioneer variety / NK Coker / Progeny EK EXP / Progeny / USG / DK XTJ / Delta King / Pioneer variety / USG / Armor AX / NK Coker / AGS / NK Coker / Continued. 6 Mississippi Wheat and Oat Variety Trials, 2005

11 Table 2 (continued) wheat yields at G.. Harden Farm, Cleveland (Forestdale silt loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in HBK / DK XTJ / Progeny EK EXP / VA McCormick / USG Exp / DK / Terral TVX84W / Progeny EK EXP / AGS / Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Planted November 16, 2004 Harvested June 14, 2005 Soil fertility: ph=5.5; P=H; K=H Fertilizer added: 125 lb/a (2/15/05); 150 lb/a (3/2/05 & 3/6/05) Herbicide: 0.5 oz/a (2/11/05) Previous Crop: Corn 2 See Procedures for a description of lodging scores. Table wheat yields at icky Belk Farm, Minter City (Forestdale silt loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in Pioneer variety XW03X / UGA E / VA00W / LA9560CA / DK / Delta Grow / Dixie / LA95181BUB / UGA A / Terral TVX83W / AgriPro APW / Delta King / Terral TV / Dixie Bell DB / Terral LA / Vigoro McIntosh / Progeny / USG / TV / USG / Dixie Bell DB / Dixie Bell DB / Delta King / Dixie Bell DB / Delta Grow / Dixie / NK Coker / Progeny / AgriPro Natchez / Dixie / UGA E / Terral TV / Progeny / Armor / DK / Armor / Delta King / LA95283CA B / USG / DK XTJ / LA95135D C / Terral TV / Pioneer variety / AgriPro Savage / Armor AX / Continued. Mississippi Agricultural and Forestry Experiment Station 7

12 Table 3 (continued) wheat yields at icky Belk Farm, Minter City (Forestdale silt loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in Progeny / Vigoro V / DK / Progeny EK EXP / Armor / Progeny EK EXP / AgriPro APW / Delta Grow / AGS / LA96140BUA / Pioneer variety / USG / LA952D3-1-3-C / Armor AX / AgriPro Beretta / Delta King G / Pioneer variety / Armor AX / LA97113UC B / Delta King / HBK / AgriPro Panola / NK Coker / Delta Grow / Pioneer variety / A Pat / NK Coker / Progeny / USG Exp / Terral TVX84W / DK XTJ / Armor AX / DK / DK XTJ / VA McCormick / Progeny EK EXP / AGS / Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Planted November 9, 2004 Harvested June 6, 2005 Soil fertility: ph=6.2; P=H; K=M Fertilizer added: 100 lb/a ( ); Topdress lb/a (3-2-05) & 100 lb/a ( ) Herbicide: None Previous Crop: Soybeans 2 See Procedures for a description of lodging scores. Table wheat yields at Heigle & Cox Farm, Issaquena County (Sharkey clay soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in AgriPro Natchez / LA95135D C / AgriPro Beretta / UGA A / LA9560CA / LA97113UC B / AgriPro Savage / Pioneer variety / Delta Grow / AgriPro Panola / UGA E / Armor AX / Terral TVX83W / DK XTJ / Terral TV / Delta King / Continued. 8 Mississippi Wheat and Oat Variety Trials, 2005

13 Table 4 (continued) wheat yields at Heigle & Cox Farm, Issaquena County (Sharkey clay soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in VA00W / Delta King / Dixie / Vigoro McIntosh / DK / Armor AX / TV / A Pat / Delta King / USG / Progeny / Delta King / Progeny / Dixie Bell DB / Armor AX / Armor / Progeny / Progeny / Dixie Bell DB / Delta Grow / Armor / Terral TV / Terral LA / Pioneer variety / Vigoro V / DK / NK Coker / Armor / UGA E / Dixie / HBK / Progeny EK EXP / LA96140BUA / USG / DK / USG / AgriPro APW / Progeny / Dixie Bell DB / Dixie Bell DB / Pioneer variety XW03X / Delta Grow / Pioneer variety / Armor AX / Pioneer variety / VA McCormick / AgriPro APW / Terral TVX84W / DK / Delta Grow / USG / Terral TV / Dixie / NK Coker / Delta King G / LA95181BUB / NK Coker / LA952D3-1-3-C / AGS / Progeny EK EXP / Progeny EK EXP / USG Exp / DK XTJ / DK XTJ / AGS / LA95283CA B / Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Planted October 28, 2004 Harvested June 17, 2005 Soil fertility: ph=6.4; P=M-H; K=M-H Fertilizer added: Topdress lb/a ( ) Fungicide: 4 oz/a (applied by air) (4-9-05) Herbicide: None Previous Crop: Corn 2 See Procedures for a description of lodging scores. Mississippi Agricultural and Forestry Experiment Station 9

14 Table wheat yields at MAFES Coastal Plain Branch, Newton (Prentiss very fine sandy loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in UGA A / AgriPro APW / UGA E / Terral LA / LA9560CA / AgriPro APW / LA95135D C / Pioneer variety XW03X / Pioneer variety / Vigoro McIntosh / UGA E / AgriPro Panola / LA95181BUB / Dixie Bell DB / Delta King / AgriPro Natchez / Terral TVX83W / LA97113UC B / LA95283CA B / Terral TV / AgriPro Beretta / Armor AX / Delta King G / Vigoro V / Armor AX / VA00W / A Pat / Dixie / Delta Grow / USG / Progeny / Dixie / Delta King / Delta Grow / TV / DK / Progeny / Armor / DK XTJ / DK / Terral TV / DK / Armor AX / Delta King / USG / Dixie / Progeny / AgriPro Savage / Dixie Bell DB / Armor / USG / Delta Grow / Dixie Bell DB / LA96140BUA / Progeny / Delta Grow / Delta King / Terral TV / Progeny / Dixie Bell DB / LA952D3-1-3-C / Armor / Pioneer variety / DK XTJ / Pioneer variety / Progeny EK EXP / Armor AX / HBK / USG / NK Coker / Pioneer variety / AGS / NK Coker / USG Exp / Continued. 10 Mississippi Wheat and Oat Variety Trials, 2005

15 Table 5 (continued) wheat yields at MAFES Coastal Plain Branch, Newton (Prentiss very fine sandy loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield weight weight headed height score 2 bu/a bu/a bu/a lb/bu g/1000 in Terral TVX84W / DK XTJ / Progeny EK EXP / NK Coker / DK / Progeny EK EXP / VA McCormick / AGS / Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Planted November 10, 2004 Harvested June 9, 2005 Soil fertility: ph=6.4; P=H; K=H Fertilizer added: 200 lb/a (12/2/04); Topdress lb/a (2/11/05) Herbicide: None Previous Crop: Wheat 2 See Procedures for a description of lodging scores. Table wheat yields at MAFES Brown Loam Branch, aymond (Loring silt loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield 2 weight weight headed 3 height score 4 bu/a bu/a bu/a lb/bu g/1000 in DK XTJ Pioneer variety A Pat Delta King AgriPro Beretta Pioneer variety XW03X USG LA95135D C Vigoro V DK Terral LA HBK Progeny Armor Progeny AgriPro APW LA96140BUA LA9560CA Terral TV AgriPro Panola Terral TV Pioneer variety AgriPro APW Delta Grow Delta King Delta King Armor AX Delta Grow Delta King Dixie Bell DB Delta Grow Dixie Bell DB Dixie Dixie Dixie Bell DB Progeny AgriPro Natchez Armor AX Dixie Armor AX DK Pioneer variety Progeny LA95283CA B DK Delta Grow AgriPro Savage Continued. Mississippi Agricultural and Forestry Experiment Station 11

16 Table 6 (continued) wheat yields at MAFES Brown Loam Branch, aymond (Loring silt loam soil). 1 Brand/Variety Year 3-Year Test Seed Date Plant Lodging yield avg. yield avg. yield 2 weight weight headed 3 height score 4 bu/a bu/a bu/a lb/bu g/1000 in Armor TV Progeny EK EXP VA00W Terral TV UGA A Progeny USG LA97113UC B USG Exp USG Progeny EK EXP AGS DK XTJ USG Armor Pioneer variety Armor AX NK Coker Terral TVX84W Terral TVX83W Vigoro McIntosh NK Coker VA McCormick LA952D3-1-3-C Dixie Bell DB DK LA95181BUB UGA E NK Coker UGA E Progeny EK EXP Delta King G DK XTJ AGS Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Planted November 15, 2004 Harvested June 13, 2005 Soil fertility: ph=6.5; P=H; K=M Fertilizer added: Topdress lb/a Herbicide: None Previous Crop: Corn 2 No 3-year averages. 3 Heading dates not taken. 4 See Procedures for a description of lodging scores. Table 7. Yield summary of wheat variety trials in Mississippi. Brand/Variety Brooksville North avg. Newton aymond South avg. Cleveland Issaquena Minter City Delta avg. Overall avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a AgriPro APW 742 (Exp.) AgriPro APW 749 (Exp.) AgriPro Beretta AgriPro Natchez AgriPro Panola AgriPro Savage AGS AGS A Pat Armor Armor Armor Armor AX 5099 (Exp.) Armor AX 5109 (Exp.) Armor AX 5299 (Exp.) Armor AX 5667 (Exp.) Delta Grow Delta Grow Continued. 12 Mississippi Wheat and Oat Variety Trials, 2005

17 Table 7 (continued). Yield summary of wheat variety trials in Mississippi. Brand/Variety Brooksville North avg. Newton aymond South avg. Cleveland Issaquena Minter City Delta avg. Overall avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Delta Grow Delta Grow Delta King 1551W Delta King Delta King Delta King Delta King Delta King Delta King Delta King Delta King G Delta King XTJ321 (Exp.) Delta King XTJ322 (Exp.) Delta King XTJ323 (Exp.) Dixie Dixie Dixie Dixie Bell DB Dixie Bell DB Dixie Bell DB Dixie Bell DB HBK LA95135D C LA95181BUB40-1 (Exp.) LA952D3-1-3-C LA95283CA B LA9560CA22-1 (Exp.) LA96140BUA LA97113UC B NK Coker NK Coker NK Coker Pioneer variety Pioneer variety Pioneer variety Pioneer variety Pioneer variety XW03X (Exp.) Progeny Progeny Progeny Progeny Progeny Progeny EK Exp 125 (Exp.) Progeny EK Exp 155 (Exp.) Progeny EK Exp 185 (Exp.) Terral LA Terral TV Terral TV Terral TV Terral TV Terral TVX83W479 (Exp.) Terral TVX84W451 (Exp.) UGA E31 (Exp.) UGA E26 (Exp.) UGA A41 (Exp.) USG USG USG USG USG Exp. 910 (Exp.) VA McCormick VA00W-526 (Exp.) Vigoro McIntosh Vigoro V Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Mississippi Agricultural and Forestry Experiment Station 13

18 Table 8. 2-Year yield summary of and wheat variety trials in Mississippi. Brand/Variety Brooksville North avg. Newton aymond South avg. Cleveland Issaquena Minter City Delta avg. Overall avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a AgriPro Beretta AgriPro Natchez AgriPro Panola AgriPro Savage AGS AGS A Pat Armor Armor Armor AX 5109 (Exp.) Delta Grow Delta Grow Delta King 1551W Delta King Delta King Delta King Delta King Delta King Delta King Delta King Delta King G Dixie Dixie Dixie HBK LA95181BUB40-1 (Exp.) LA9560CA22-1 (Exp.) NK Coker NK Coker NK Coker Pioneer variety Pioneer variety Pioneer variety Pioneer variety Progeny Progeny Progeny Progeny Progeny Terral LA Terral TV Terral TV Terral TV Terral TV USG USG USG USG VA McCormick Vigoro McIntosh Overall Mean LSD (.10) Error degrees of freedom CV (%) (%) Mississippi Wheat and Oat Variety Trials, 2005