DOW CONFIDENTIAL - Do not share without permission PERFORMANCE OF PHYTOGEN ™ COTTONSEED VARIETIES EXPRESSING WIDESTRIKE ™ INSECT PROTECTION IN 2006 STRIP.

DOW CONFIDENTIAL - Do not share without permission

PERFORMANCE OF PHYTOGEN™ COTTONSEED VARIETIES EXPRESSING WIDESTRIKE™ INSECT PROTECTION IN 2006 STRIP TRIALS

A.R. Parker, L.L. Reginelli and R.A. Haygood

Dow AgroSciences LLC Indianapolis, Indiana

™ WideStrike is a trademark of Dow AgroSciences LLC ™ PhytoGen and PhytoGen logo are trademarks of PhytoGen Seed Company

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Introduction Dow AgroSciences has been conducting large plot strip trials characterizing

agronomic performance of the new PhytoGen / WideStrike varieties PHY 485 WRF and PHY 370 WR.

Large plot trials have demonstrated that PhytoGen varieties provide high yield potential with a broad scope of stability across large geographic areas along with the latest in insect and herbicide technologies.

University small plot replicated trials conducted in 2005 and 2006 validated results of the large plot strip trials, and further characterized the yield potential and lint characteristics of the varieties expressing the WideStrike trait in multiple environments.

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Performance of PHY 370 WR as Compared to Five Competitive Varieties in Available 2005 – 2006 OVT Trials in the Mid-South

1,000

1,050

1,100

1,150

1,200

1,250

1,300

1,350

PHY370WR

ST5242BR

DP445BR

ST4575BR

DP444BR

FM960B2RBased on 42 trials

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Fiber Quality of PHY 370 WR as Compared to Five Competitive Varieties in Available 2005 – 2006 OVT Trials in the Mid-South

Based on 42 trials

Variety Turnout Mic Length Strength Uniformity% inches g/tex %

PHY370WR 40.0 4.6 1.09 30.3 83.2

ST5242BR 39.3 4.5 1.10 28.5 83.1

DP445BR 39.7 4.4 1.13 31.4 83.5

ST4575BR 39.3 4.6 1.10 30.6 83.1

DP444BR 39.9 4.1 1.11 29.1 83.0

FM960B2R 38.0 4.5 1.15 31.9 82.6

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Performance of PHY 485 WRF as Compared to Four Competitive Varieties in Available 2005 – 2006 OVT Trials in the Mid-South

1,000

1,050

1,100

1,150

1,200

1,250

PHY 485 WRF

DP 117 B2RF

ST 4554 B2RF

ST 4357 B2RF

DP 143 B2RF

Based on 28 trials

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Fiber Quality of PHY 485 WRF as Compared to Four Competitive Varieties in Available 2005 – 2006 OVT Trials in the Mid-South

Based on 28 trials

Variety Turnout Mic Length Strength Uniformity% inches g/tex %

PHY 485 WRF 38.8 4.6 1.13 30.9 84.2

DP 117 B2RF 39.4 4.4 1.14 32.7 83.4

ST 4554 B2RF 39.0 4.4 1.13 30.4 83.6

ST 4357 B2RF 38.4 4.2 1.16 28.0 83.1

DP 143 B2RF 38.4 4.1 1.20 29.9 82.4

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Uniform Stacked Gene Cotton Variety Trials - 2006

Dr. Robert Lemon, Texas Coop. Extension Service

Data represent averages from replicated trials conducted in Burleson, Calhoun, Colorado, Fort Bend, Jackson, Matagorda, Refugio and Wharton counties. Lint value was calculated using a loan value of $0.517 lb +/- premiums/discounts according to the 2006 USDA loan chart.

Vaiety Yield Turnout Mic Length Strength Uniformity Lint ValueLint Lbs/A % inches g/tex % $/A

PHY 485 WRF 1,163 34.3 4.5 1.15 30.6 83.0 $643.49DP 143 B2RF 1,078 33.3 4.0 1.19 29.1 81.3 $601.89DP 164 B2RF 1,054 33.2 4.2 1.13 28.7 81.7 $592.70DP 445 BR 1,046 35.1 4.4 1.13 31.0 82.7 $594.56ST 4554 B2RF 1,040 33.0 4.3 1.11 29.5 81.7 $579.65FM 9063 B2RF 1,016 32.7 4.2 1.18 30.8 82.1 $574.04BCG 4630 B2RF 999 31.8 3.9 1.15 28.6 82.0 $561.78

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Objectives of 2006 Strip Trial Evaluations

Evaluate PHY 370 WR, PHY 470 WR, PHY 480 WR, and PHY 485 WRF in large strip plots in diverse geographies representing on farm commercial evaluations.

Evaluate PhytoGen varieties against regional commercial standards to further characterize yield stability across varied environments.

Characterize relative maturities of PhytoGen varieties as compared to commercial varieties.

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Materials and Methods for 2006 Innovation Strip TrialsPlot Design: PHY 370 WR, PHY 480 WR, PHY 485 WRF, DP

444 BR, and ST 4554 B2RF were planted in 1-to-10 acre blocks in grower fields. Commercial agronomic practices were followed, and insecticide applications were made for each variety based on local action thresholds.

Management: Commercial agronomic practices were followed and when local insect thresholds or when Pix applications were triggered, the entire fields were sprayed based off consultant recommendations.

Evaluations: Seedling vigor, first fruiting branch, date of first bloom, end of season mapping data, which encompasses Node

above cracked boll, plant height, upper most cracked boll, upper most harvestable boll, total number of nodes, and total number of fruiting nodes.

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Locations of 2006 Innovation Strip Trials with Participating Varieties by location

Locations PHY 440 W

PHY 370 WR

PHY 470 WR

PHY 480 WR

PHY 745 WRF

PHY 485 WRF

PHY 310 R

PHY 425 RF

ST 4554 B2RF

DPL 444 BR

Wharton, TX X X X X X

San Angelo, TX X X X

Lubbock, TX X X X

Altus, OK X X X X

Bunkie, LA X X X X

Transylvania, LA X X X X X X

Portland, AR X X X X X X

Elaine, AR X X X X X

Belzoni, MS X X X X X

Clarksdale, MS X X X X X

Portageville, MO X X X X X

Belle Mina, AL X X X X X

Black Oak, AR X X X X X

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Early Season VarietiesEarly Season Varieties

• PHY 310 R - Roundup Ready® variety with early season maturity and good adaptation. New germplasm from PhytoGen Seed Company.

• PHY 370 WR - WideStrike and Roundup Ready® stacked variety with early season maturity and good adaptation. New germplasm from PhytoGen Seed Company.

• PHY 375 WRF – Roundup Ready Flex version. 2007 testing in preparation for 2008 launch

®Roundup Ready is a registered trademark of Monsanto Company

• PHY 440 W - WideStrike variety with early-to-mid maturity, consistent high yield and broad adaptation. Improved micronaire, staple and grade.

• PHY 470 WR - WideStrike and Roundup Ready® stacked variety with early-to-mid maturity and broad adaptation. Improved micronaire and grade.

• PHY 480 WR - WideStrike and Roundup Ready® stacked variety with early-to-mid maturity and broad adaptation. Similar to PHY 470 WR with improved lint yield, staple and strength.

• PHY 485 WRF - WideStrike Roundup Ready® Flex stacked variety with early-to-mid maturity and broad adaptation. Very good to excellent fiber quality.

®Roundup Ready is a registered trademarks of Monsanto Company.

Early–to- Mid Season VarietiesEarly–to- Mid Season Varieties

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Data Presentation

To demonstrate the evaluation summaries developed by the Cotton Development specialists, a data collection summary will be shown for trials which include like varieties across all locations

Average yields of PHY 370 WR, PHY 480 WR, PHY 485 WRF, DP 444 BR, and ST 4554 B2RF will be shown.

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Average vigor ratings averaged across 6 locations

Varieties Early Season Vigor Ratings

PHY 370 WR 1.6

PHY 480 WR 2.2

PHY 485 WRF 2.0

DP 444 BR 2.3

1= excellent, 5= poor

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Average Plant Map Data Across 6 Locations

Evaluations PHY 370 WR PHY 480 WR PHY 485 WRF DP 444 BR

Plant Height 41.2 42.4 46.9 41.8

Node of First Fruiting Branch 6.5 6.8 6.2 6.8

Node of Uppermost CrackedBoll

14.7 14.5 12.4 14.9

Node of Uppermost Harvestable Boll

18.7 18.9 17.3 18.5

Total Number of Nodes 22.3 22.9 21.2 22.4

Number of Fruiting Branches 13.4 13.4 13.0 13.0

NACB 3.9 4.5 4.9 3.5

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Average Days to First Bloom from 6 locations

Varieties Days to First Flower

PHY 370 WR 59.2

PHY 480 WR 61.2

PHY 485 WRF 62.6

DP 444 BR 59.0

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Relative Maturity

Early   Relative Maturity   Late

    PHY 480 WR          

  PHY 370 WR PHY 485 WRF PHY 440 W        

  PHY 310 R PHY 425 R PHY 470 WR      

DP 444 BR DP 445 BR ST 5242 BR FM 960 BR   DP 555 BR

These maturity estimates are based on available data and observations and are provided only to help gauge relative maturity. Maturity can vary from year to year and field to field based on environmental conditions, soil types, management styles, etc.

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Average Yield and Fiber Quality Across 3 Locations

Varieties Lint Yield lbs / acre

Mic Lengthinches

Strengthg/tex

Uniformity%

PHY 485 WRF 1,535 4.5 1.13 30.5 84.2

ST 4554 B2RF 1,536 4.4 1.12 30.4 83.8

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Average Yield and Fiber Quality Across 6 Locations

VarietiesLint Yield lbs / Acre

Mic Length Strength Uniformity

PHY 370 WR 1,214 4.9 1.07 30.3 83.1

PHY 480 WR 1,164 4.6 1.11 31.0 84.2

DP 444 BR 1,142 4.1 1.09 28.9 83.2

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Summary PHY 370 WR, PHY 480 WR and DP 444 BR comparisons were made in 6 of

13 Innovation trial locations and PHY 485 WRF and ST 4554 B2RF comparisons were made in 5 of 13 Innovation trial locations.

PHY 370 WR, PHY 480 WR, and PHY 485 WRF demonstrated high yield potential and quality lint throughout the Southern and Southwestern geographies.

Multiple year comparisons of “end of season plant mapping data” and date of first bloom led to PHY 370 WR being characterized as an early season variety and PHY 480 WR and PHY 485 WRF characterized as early-to-mid season varieties when using DP 444 BR as the standard early season variety.

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Conclusion

PhytoGen Seed Company is introducing new high yielding, early to mid maturity varieties in the upland cotton areas. These include varieties which express the WideStrike Insect Protection trait in combination with the Roundup Ready or Roundup Ready Flex traits.

PHY 370 WR and PHY 485 WRF are widely adapted across a wide range of environments and will provide growers new choices in germplasm, insect protection and brand.