Systems Agronomic and Economic Evaluation of Cotton Varieties in ...

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Location 2 – DumasAt the Dumas location, Deltapine 104B2RF had the highest lint turnout of 35.2% and All-Tex Edge B2RF had the lowest with 29.5% (Table 3). Seed turnout averaged 48.0%across varieties. Bur cotton yields averaged 3710 lb/acre and ranged from a high of4840 lb/acre for Deltapine 104B2RF to a low of 2904 lb/acre for NexGen 1551RF. Thisresulted in lint yields ranging from 1702 lb/acre (Deltapine 104B2RF) to 929 lb/acre(NexGen 1551RF) and an average seed yield of 1781 lb/acre. Loan values derived fromgrab samples ranged from a high of $0.5723 for Deltapine 1212B2RF to a low of$0.5357 for NexGen 1551RF. After applying lint loan values to lint yield, lint values($/acre) ranged from $966.77 for Deltapine 104B2RF to $497.78 for NexGen 1551RF.When subtracting ginning and seed/technology fee costs from total value (lint value +seed value) net value averaged $697.44/acre across varieties. Significant differenceswere observed among varieties for net value with a range of from $1045.54/acre forDeltapine 104B2RF to $531.73/acre for NexGen 1551RF, a difference of $513.81.Classing data derived from grab samples are reported in Table 4. Micronaire washighest for NexGen 1551RF 4.6 and lowest for Deltapine 1219B2RF at 3.2. Stapleaveraged 35.3 and was highest for Deltapine 1212B2RF (36.5) and lowest for NexGen1551RF (33.7). The highest uniformity was observed in Deltapine 104B2RF with 81.5%while the lowest value of 78.0% was observed in NexGen 2051B2RF. Strength valuesranged from a high of 33.7 g/tex for Deltapine 104B2RF to a low of 28.0 g/tex forNexGen 2051B2RF.Location 3 – White DeerAt White Deer, lint turnouts of field-cleaned bur cotton ranged from a high of 35.8% forDeltapine 104B2RF to a low of 29.7% for NexGen 3348B2RF (Table 5). Seed turnoutaveraged 49.1% across all varieties. An average bur cotton yield of 5269 lb/acre wasobserved. Differences among varieties for seed turnout and bur cotton yield were notsignificant at this location. However, lint yields averaged 1725 lb/acre and differenceswere significant. Deltapine 104B2RF had the highest lint yield with 1932 lb/acre. Seedyields, significant at the 0.10 level, averaged 2586 lb/acre across varieties. Loan valuesderived from grab samples ranged from $0.5710 for NexGen 1551RF to $0.4765 forDeltapine 1219B2RF. After applying lint loan values to lint yield, lint values ($/acre)ranged from a high of $1,042.89 for Deltapine 104B2RF to a low of $691.09 forDeltapine 1219B2RF. After subtracting ginning and seed/technology costs from totalvalue (lint value + seed value), net value ranged from a high of $1,129.83/acre(Deltapine 104B2RF) to a low of $729.84/acre (Deltapine 1219B2RF) and averaged$987.66/acre across varieties. Five other varieties were included in the statistical uppertier with Deltapine 104B2RF.Classing data derived from grab samples are reported in Table 6. NexGen 1551RF hadthe highest micronaire of 4.1 and the lowest was observed in Deltapine 1219B2RF with2.6. Staple length averaged 37.3 and was highest for FiberMax 9180B2F (38.4) andlowest for NexGen 1551RF (36.3). The highest uniformity value of 82.2% was observedin Deltapine 104B2RF. Strength values averaged 32.3 g/tex and ranged from a high of33.9 g/tex for Deltapine 1219B2RF to a low of 29.9 g/tex for All-Tex Edge B2RF.99
Location 4 – PampaAt the Pampa location, FiberMax 9180B2F had the highest lint turnout of 35.9% andNexGen 3348B2RF had the lowest with 29.7% (Table 7). Seed turnout averaged 49.2%across varieties. Bur cotton yields averaged 4029 lb/acre and ranged from a high of4637 lb/acre for Deltapine 1219B2RF and PhytoGen 367WRF to a low of 3240 lb/acrefor NexGen 1551RF. This resulted in lint yields ranging from 1509 lb/acre (FiberMax2011GT) to 1008 lb/acre (NexGen 1551RF) and an average seed yield of 1984 lb/acre.Loan values derived from grab samples ranged from a high of $0.5730 for Deltapine104B2RF to a low of $0.5380 for NexGen 1551RF. After applying lint loan values to lintyield, lint values ($/acre) ranged from $860.93 for FiberMax 2011GT to $542.56 forNexGen 1551RF. When subtracting ginning and seed/technology fee costs from totalvalue (lint value + seed value) net value averaged $794.06/acre across varieties.Significant differences were observed among varieties for net value with a range of from$909.80/acre for FiberMax 2011GT to $577.90/acre for NexGen 1551RF, a difference of$331.90. Several varieties (7) were included in the statistical upper tier with FiberMax2011GT.Classing data derived from grab samples are reported in Table 8. Micronaire washighest for NexGen 1551RF 5.1 and lowest for Deltapine 1219B2RF at 3.9. Stapleaveraged 37.2 and was highest for Deltapine 1219B2RF (38.4) and lowest for NexGen1551RF (35.4). Uniformity averaged 80.8% and differences were not significant amongvarieties. Strength values ranged from a high of 34.7 g/tex for Deltapine 104B2RF to alow of 31.2 g/tex for PhytoGen 367WRF.Summary and ConclusionsOver the last several years, cotton producers in the Texas Panhandle region haveincreased planted acreage of cotton from approximately 616 thousand in 2008 toapproximately 1.25 million in 2011. Although acreage was down in 2012, cottonproduction is still a very important part of the economy in this region. With improvedgenetics and technologies, as well as rotational crop management systems, cottonyields in the Texas Panhandle topped 1.4 million bales in 2010. Characteristicscommonly evaluated in small-plot testing include lint yield, turnout percentages, fiberquality, and earliness. Current small-plot variety testing programs are inadequate inscale and design to investigate the economic impact of new transgenic varieties withvalue-added traits. The objective of this project was to evaluate the profitability of cottonvarieties in producers' fields in the Texas Panhandle. For scientific validity, threereplications of each variety were included at each of four locations. Trials wereconducted under irrigation in Sherman County (near Sunray), Moore County, (Dumas),Carson County (near White Deer), and Gray County (near Pampa). A randomizedcomplete block design was used at all locations. Weed and insect control measures, ifneeded, and harvest aid applications were performed commercially or by cooperatingproducers. Plots were harvested with commercial harvesters by producers withassistance provided by program personnel at all locations. Plot weights weredetermined at harvest using a flat-bed scale trailer with integral electronic scales and burcotton yields were subsequently calculated by plot. After grab samples from eachlocation and each plot were ginned, lint and seed turnout values were applied to bur100
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Systems Agronomic and EconomicEvalu
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Scott Russell, EA-IPM, Terry/Yoakum
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Replicated No-Till LESA Irrigated R
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Agronomic and Economic Evaluation o
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andomized complete block design was
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not significant at this location. H
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Table 1. Inseason plant measurement
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Table 3. HVI fiber property results
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Entry Lint Seed Bur cotton Lint See
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Table 7. Inseason plant measurement
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Table 9. Final plant map results fr
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Table 11. HVI fiber property result
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Replicated LESA Irrigated RACE Vari
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Results and Discussion:Agronomic da
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Replicated Sub-Surface Drip Irrigat
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Replicated LEPA Irrigated RACE Vari
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Replicated LESA Irrigated RACE Vari
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Page 56 and 57: Replicated Sub-Surface Drip Irrigat
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Page 62 and 63: Entry Lint Seed Bur cotton Lint See
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Page 82 and 83: Results and Discussion:Acknowledgme
Page 88 and 89: Replicated LESA Irrigated RACE Vari
Page 96 and 97: Replicated LEPA Supplemental (Limit
Page 98 and 99: lb/acre for FiberMax 2989GLB2. Lint
Page 100 and 101: Table 2. HVI fiber property results
Page 102 and 103: Texas Panhandle Cotton Variety Tria
Page 104 and 105: Biopolymer Research Institue for HV
Page 108 and 109: cotton yields to determine lint and
Page 118 and 119: Replicated Dryland LargePlot Demons
Page 120 and 121: Insecticides:Fertilizer management:
Page 126 and 127: Replicated Dryland Cotton Variety T
Page 128 and 129: Results and Discussion:Significant
Page 130 and 131: Table 2. HVI fiber property results
Page 132 and 133: 125Plains Dryland Systems Variety T
Page 134 and 135: 127Blanco Dryland Systems Variety T
Page 136 and 137: 129Dawson County Dryland RACE Demon
Page 138 and 139: 131Lynn County Irrigated RACE Demon
Page 140 and 141: Subsurface Drip Irrigation Pre-plan
Page 142 and 143: Effects of Variable In-Season Irrig
Page 144 and 145: Table 1. Response of commercially a
Page 146 and 147: Table 1. cont. †BrandVarietyVerti
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Page 150 and 151: Table 2. HVI ratings for varieties
Page 152 and 153: Table 4. HVI ratings for varieties
Page 154 and 155: Table 6. Effect of variety on HVI r
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Table 7. cont.Variety bRel.ValueRan
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High Plains (TASS 1N and 1S)Planted
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Lubbock Air TemperaturesMay, 2012Te
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Lubbock Air TemperaturesSeptember,
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Precipitation (inches)4.0LTA20123.0
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Are side-by-side plots more valuabl
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Is a one-year test valid, or are se
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