REPORTING DATA

SCC-33 National Variety Testing MeetingNew Orleans – February 8-10, 2012

Rick MascagniLSU AgCenterSt. Joseph, LA

CORN AND GRAIN SORGHUM OVTLSU AGCENTER

Corn and grain sorghum OVT are conducted each year across the state.

On average, about five locations are evaluated for each crop.

The OVT team consists of the statewide coordinator and cooperators at each station. Coordinator solicits entries from seed companies, packages

seed, and summarizes data at the end of the season. Cooperators manage the crop at their location, which includes

planting, taking notes, collecting data, and harvesting. Coordinators and cooperators work close together to best

ensure the production of the most useful information for the grower.

CORN OVT MEASUREMENTS REPORTED Yield 2-yr yield averages Grain moisture Test weight Plant population Mid-silk date Plant height Ear height

Husk cover Lodging Earworm damage Barren tip

CORN OVT MEASUREMENTS REPORTED Earworm damage

ratings: 0-no damage 1-channels < 1 inch 2-channels < 3

inches 3-channels > 3

inches

Barren tip ratings: 0-no BT 1-BT < 1 inch 2-BT < 3 inches 3-BT > 3 inches

LAES - CORN AND GRAIN SORGHUM RESEARCH SUMMARY

This LAES report details all the data collected and presents a summary, cultural practices, and weather information for each location.

This report was published as a hard copy through 2000.

Beginning in 2001, the grain sorghum research summary was posted on the AgCenter’s grain sorghum webpage.

Beginning in 2009, the corn research summary was posted on the AgCenter’s corn webpage.

LCES EXTENSION PUBLICATION Enumerates cultural practices: hybrid

selection, planting rate and depth, fertilization, and planting date.

Recommended feed grain hybrids were published through 2006.

Any hybrid tested for two years and whose yield average fell within 90% of the average yield of the top three hybrids by location was recommended provided it was acceptable in other agronomic traits.

LCES EXTENSION PUBLICATION Beginning in 2007, hybrids that were

placed in the “highest-yielding” group for one or two years. For current year, yields for hybrids in the highest-yielding group fall within one LSD value (P=0.10). For two years, hybrids fall within one LSD value for the two years evaluated.

CORN HYBRID PERFORMANCE TRIAL ON COMMERCE SILT LOAM AT THE NORTHEAST RESEARCH STATION – ST. JOSEPH

Location SummaryAlthough rainfall was relatively low over the growing season, rainfall events were well distributed (see below). Temperatures averaged well above 90◦ F in June and July. Yields were excellent, ranging from 151.9 to 200.2 bu/a with a trial average of 167.1 bu/a (Table 4). There was only one hybrid, REV®28R10™, that fell within the highest-yielding group in 2011 and no hybrid fell in this group both years, 2010 and 2011. Yields were higher than expected considering the above normal temperatures. Earworm damage (ED) was very low, with only one hybrid having a rating as high as 2.

Soil Type…………….………….…Commerce silt loam Tillage……..Conventional till with no spring cultivation Row Spacing…………………………….…….40 inches Seeding Rate………….…..………………32,000 seed/a Previous Crop……………………………………Cotton Planting Date……………………………….…March 19 Fertilization…………...Sidedress: 200 lb N/a (30-0-0-2) Pesticides………………….…. Burndown: Round-Up @ 1.5 pt/a + 2,4-D @ 0.75 pt/a; Pre-emerge: Atrazine @ 1.5 qt/a + Dual @ 1 pt/a + Discipline @ 2 oz/a; Post-emerge: Atrazine @ 1.5 qt/a + Steadfast @ 1.5 oz/a + 0.25% NIS; Harvest Date…….………………………..…August 2-3

St. Joseph Weekly Weather

0102030405060708090

100110

20-Mar

3-Apr

17-Apr

1-May

15-May

29-May

12-Jun

26-Jun

10-Jul

24-Jul

7-Aug

Wee

kly

Max

/Min

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ture

(F)

01234567891011

Wee

kly

Rain

fall

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Rainfall Max Temp Min Temp

LOCATION SUMMARYAlthough rainfall was relatively low over the growing season, rainfall events were well distributed (see below). Temperatures averaged well above 90◦ F in June and July. Yields were excellent, ranging from 151.9 to 200.2 bu/a with a trial average of 167.1 bu/a (Table 4). There was only one hybrid, REV®28R10™, that fell within the highest-yielding group in 2011 and no hybrid fell in this group both years, 2010 and 2011. Yields were higher than expected considering the above normal temperatures. Earworm damage (ED) was very low, with only one hybrid having a rating as high as 2.

CULTURAL PRACTICES Soil Type…………….………….…Commerce silt loam Tillage……..Conventional till with no spring cultivation Row Spacing…………………………….…….40 inches Seeding Rate………….…..………………32,000 seed/a Previous Crop……………………………………Cotton Planting Date……………………………….…March 19 Fertilization…………...Sidedress: 200 lb N/a (30-0-0-2) Pesticides………………….….

• Burndown: Round-Up @ 1.5 pt/a + 2,4-D @ 0.75 pt/a;• Pre-emerge: Atrazine @ 1.5 qt/a + Dual @ 1 pt/a +• Discipline @ 2 oz/a;• Post-emerge: Atrazine @ 1.5 qt/a + Steadfast @ 1.5 oz/a + 0.25% NIS

Harvest Date…….………………………..…August 2-3

WEATHER DATA

St. Joseph Weekly Weather

0102030405060708090

100110

20-Mar

3-Apr

17-Apr

1-May

15-May

29-May

12-Jun

26-Jun

10-Jul

24-Jul

7-Aug

Wee

kly

Max

/Min

Tem

pera

ture

(F)

01234567891011

Wee

kly

Rain

fall

(inch

es)

Rainfall Max Temp Min Temp

PERFORMANCE OF CORN HYBRIDS AT ALEXANDRIA, 2011

Brand/Hybrid 2011 Yield1 2-year average2

-------------------------------bu/acre-----------------------------------

Pioneer 33F87 (HX1,LL,RR2)

151.8 138.7

DEKALB DKC67-88 144.6 140.9DEKALB DKC68-05* 140.4 143.4AgriGold A6632VT3Pro 137.6 132.2Delta Grow 2988 135.0 -M-Pride MP3152VT3 132.7 -Armor 1539PRO 130.6 124.9Avg. (n=72) 134.3LSD (0.10) 13.7

1Yields in bold denote hybrids that are in the highest-yielding group in 2010.2Hybrid in bold with an asterisk(*) was in the highest-yielding group in both 2010 and 2011.