Information Bulletin 520 May Mississippi. Cotton VARIETY TRIALS, 2016 MISSISSIPPI S OFFICIAL VARIETY TRIALS

Transcription

1 Information Bulletin 520 May 207 Mississippi Cotton VARIETY TRIALS, 206 MISSISSIPPI S OFFICIAL VARIETY TRIALS

2 NOTICE TO USER This Mississippi Agricultural and Forestry Experiment Station information bulletin is a summary of research conducted under project number 7790 at the Delta Research and Extension Center in Stoneville, Mississippi, and several other locations in the state. 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 product by Mississippi State University or the Mississippi Agricultural and Forestry Experiment Station. Trade names of commercial products used in this report are included only for clarity and understanding. All available names (trade names, chemical names, experimental product code names or numbers, etc.) of products used in this research project are listed in the tables contained in this report.

3 Mississippi Cotton Variety Trials, 206 MAFES Official Variety Trial Contributors Darrin M. Dodds Associate Extension/Research Professor State Cotton Specialist Cotton Variety Trial Coordinator Department of Plant and Soil Sciences Mississippi State University Normie W. Buehring Research Professor/Superintendent Northeast Mississippi Branch Experiment Station Verona, Mississippi Larry Falconer Extension Professor Delta Research and Extension Center Stoneville, Mississippi Bobby R. Golden Assistant Research Professor Delta Research and Extension Center Stoneville, Mississippi Mark W. Shankle Research Professor North Mississippi Research and Extension Center Pontotoc, Mississippi Ted P. Wallace Associate Professor Department of Plant and Soil Sciences Mississippi State University The authors would like to express their appreciation first and foremost to the five producers who participated in the 206 Official Cotton Variety Trial locations that were conducted on-farm. The on-farm trials provide an added benefit to the data by expanding the footprint of the trials into differing areas of the state to better represent the environmental, soil textural, and management differences that are present throughout Mississippi. Thank you to Cliff Heaton (Clarksdale), Phil Nichols and George Cunningham (Omega), Kenny Hurt (Senatobia), John Doty Porter and Doty Porter (Sidon), and Pace Perry (Tunica); your hard work and willingness to participate in the variety trials are deeply valued. We at the Mississippi Agricultural and Forestry Experiment Station look forward to working with you and other willing producers in the future. Gratitude is expressed to Chase Samples and Chase King of the agronomy program in the Mississippi State University Department of Plant and Soil Sciences for their assistance with all aspects of conducting the trials. Without your diligent work and assistance, the variety trials would not be a success. We would also like to recognize Clark Blaine, Michael Davis, Drew Denton, Savana Davis, Lucas Franca, Steven Hall, Kord Lyon, Benjamin Palmer, Michael Plumblee, and B.J. Simmerman for their assistance with hand harvesting, ginning, and preparing fiber quality samples. Their work allows us to provide data in a timely fashion. This document was approved for publication as Information Bulletin 520 of the Mississippi Agricultural and Forestry Experiment Station. It was published by the Office of Agricultural Communications, a unit of the Mississippi State University Division of Agriculture, Forestry, and Veterinary Medicine. Copyright 207 by Mississippi State University. All rights reserved. This publication may be copied and distributed without alteration for nonprofit educational purposes provided that credit is given to the Mississippi Agricultural and Forestry Experiment Station. Find variety trial information online at mafes.msstate.edu/variety-trials.

4 PREFACE The main objective of the Mississippi Cotton Official Variety Trials (OVT) is to provide unbiased information to clientele regarding evaluation of yield and fiber performance of commercial cotton varieties and advanced lines that may become varieties in the future. The ultimate goal is to provide Mississippi producers with adequate information to make well-informed seed selection decisions for cultivation in the major production regions in Mississippi. This Mississippi Agricultural and Forestry Experiment Station information bulletin is a summary of research conducted at numerous on- and off-station locations throughout Mississippi. Interpretation of data presented may change after additional experimentation over years. All information included is not to be construed as a recommendation for use or as an endorsement of a particular product or variety by Mississippi State University or the Experiment Station. Trade names of commercial products used in this report are included only to provide greater clarity to the information presented.

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6 CONTENTS Introduction... Testing Procedures... Interpreting the Data...2 Selecting a Variety/Trait...2 Considerations for Selection...3 Loan Valuation Decision Aid...3 Top-Yielding Varieties...3 Performance Tables for 206-Tested Varieties Table. Varieties submitted for testing in Table 2. One-year yield performance of all varieties submitted for testing in Table 3. Two-year yield performance of varieties cultivated in the Delta region...6 Table 4. Two-year yield performance of varieties cultivated in the Hill region...7 Table 5. One-year yield performance of varieties cultivated in the Delta region...8 Table 6. One-year yield performance of varieties cultivated in the Hill region...9 Table 7. Yield performance and fiber characteristics Brooksville OVT trial...0 Table 8. Yield performance and fiber characteristics Clarksdale OVT trial... Table 9. Yield performance and fiber characteristics Itta Bena OVT trial...2 Table 0. Yield performance and fiber characteristics Omega OVT trial...3 Table. Yield performance and fiber characteristics Senatobia OVT trial...4 Table 2. Yield performance and fiber characteristics Sidon OVT trial...5 Table 3. Yield performance and fiber characteristics Starkville OVT trial...6 Table 4. Yield performance and fiber characteristics Stoneville OVT trial...7 Table 5. Yield performance and fiber characteristics Tunica OVT trial...8 Table 6. Yield performance and fiber characteristics Verona OVT trial...9 Table 7. Variety ranking at all 0 locations in Table 8. Variety ranking at seven dryland locations in Table 9. Variety ranking at three dryland locations in Appendix. Agronomically important events for OVT trials conducted during

7 Mississippi Cotton Variety Trials, 206 Annually, Mississippi State researchers evaluate cotton varieties at numerous locations within the cotton-growing regions in the state. The purpose of the Mississippi State Official Variety Trials (OVT) is to provide an unbiased comparison of varieties across a range of environments. Trial evaluation of standard, commercially available cotton cultivars and new, upcoming cultivars throughout the state provides producers data to make well-informed variety selection decisions based upon how a particular cotton variety performed close to their operations. The OVT for cotton is conducted annually at the Delta Branch Experiment Station in Stoneville, North All varieties submitted for testing are grown utilizing conventional chemical control for insect and weed pests. Each test plot consists of two rows of cotton 35 to 40 feet in length with a row spacing of 38 or 40 inches. Each plot is analyzed statistically as a randomized complete block with four blocks or replications. Management practices are determined and implemented by cooperators at each location based on soil texture, soil-test value, and scouting for pest pressures. However, seeding rate and operation is controlled by the variety-testing coordinator. A list of agronomically important management inputs or practices and dates is presented in Appendix. Agronomic date information allows the user to take into account management practices at each location when evaluating yield. All fiber parameters (lint percent, individual boll weight), as well as high-volume instrumentation (HVI) fiber-quality assessment, are based upon a handpicked 25-boll sample or a random grab sample from each INTRODUCTION TESTING PROCEDURES Mississippi Branch Experiment Station in Verona, R. R. Foil Plant Science Research Center at Mississippi State University, and Black Belt Branch Experiment Station in Brooksville, as well as at cooperating producer locations in both the Delta and Hill cotton-producing regions. At each location, all varieties entered into the trial are treated identically (conventionally) with respect to herbicide and insecticide input to strive for unbiased evaluation of genetic potential. Mississippi State personnel attempt to conduct at least eight small-plot trials per year in areas that well represent the majority of the state s cotton-producing acreage. replicated plot at each location. Samples from all locations are ginned on the same 0-saw Continental laboratory gin to determine gin turnout. Utilization of the same gin for all samples is important to avoid bias in fiber quality across locations. HVI analysis for fiber property determinations are conducted by the Fiber and Biopolymer Research Institute at Texas Tech University in Lubbock, Texas. Lint yields are calculated using the seed-cotton weight mechanically harvested from each plot, and the turnout percentage determined from handpicked boll samples. Mean lint yields are presented as pounds of lint per acre. The commercial varieties utilized as standard checks for comparison in 206 were Delta Pine and Land 32 B2RF, Phytogen 499 WRF, and Stoneville 4946GLB2. These varieties were included to give the end user an idea of how newer cultivars compare to proven highyielding varieties adapted to the Midsouth growing region. Mississippi Agricultural and Forestry Experiment Station

8 Field variability is inherent to production research with any cropping system. Unlike strip trials, small-plot research allows for replication with a very minimal footprint. The smaller area and replication of treatments helps reduce variability due to various factors commonly found in the field (i.e., soil textural changes, pest variations). Reduced variability lends us a greater understanding of a variety s genetic potential cultivated under uniform conditions. However, strip-trial research may provide greater information about how a variety will perform across a range of conditions (e.g., low spot in the field). Data from both small-plot and strip trials should be considered when making final variety-selection decisions. Mississippi State separates the greatest-performing varieties by use of a Fisher s Protected Least Significant Difference (LSD) at a 5% level of significance. The LSD Cultivar selection is one of the most important management decisions a producer must make each growing season. Improper variety selection generally cannot be overcome with management. Starting with the greatest genetic potential will generally provide the highest yield with all other things being considered equal. Careful consideration should go into selecting varieties that are well adapted to Midsouth growing region and to certain geographical regions within the state due to the rising cost of seed and associated technology fees. Multiple available transgenic traits can make selecting a variety cumbersome. At most locations, the topyielding varieties represent a range of available trait packages. This lends the producer multiple options to choose from with respect to herbicide and insecticide traits. Below is a synopsis of the transgenic traits that were represented in this year s trials. Glyphosate tolerance This trait is generally indicated on the seed bag with either a G, RF, or XF. Varieties with these designations can tolerate over-the-top applications of glyphosate. The newer GlyTol and Flex varieties have completely replaced the older Roundup-Ready varieties (R or RR). Glytol and Flex varieties allow for over-thetop applications to be made later into the season. XtendFlex (XF) varieties are tolerant to Liberty and dicamba. INTERPRETING THE DATA SELECTING A VARIETY/TRAIT associated with the 5% level, lends us 95% positive identification of the greatest-yielding varieties at each specific location. In each individual trial, the collection of varieties that yield the greatest statistically is represented in bold. These varieties will all have a numerical difference less than the LSD value shown at the bottom of the data variable columns. The varieties listed in bold may have slightly differing numerical yields, but they will perform similarly at a given location. Statistical analysis is not conducted for across-location averages. Producers should review data tables for the geographically closest location that is representative of their operation, but they should also review yield information across locations to get an idea of a variety s yield stability over a wide range of production environments. Glufosinate tolerance This trait is generally indicated on the seed bag with an LL. These varieties can withstand over-the-top applications of Liberty. XtendFlex (XF) varieties are tolerant to Liberty and dicamba. It is important to note that producers utilizing both glyphosate- and glufosinate-tolerant varieties in close proximity must use caution to avoid crop injury from spray drift, improperly cleaned applicators, and/or a combination of both. Bollgard 2 Varieties with the designation B2 on the seed bag or in the brand name contain genes that produce protein toxic to heliothis. However, under high and persistent pressure, supplemental chemical control strategies are necessary to prevent economic damage from caterpillar pests. WideStrike These Phytogen varieties have the designations W or W3 on the bag or in the variety name. Like Bollgard 2, Widestrike varieties contain two genes that produce proteins toxic to caterpillar pests. Additionally, W3 varieties contain three genes that produce proteins toxic to caterpillar pests. TwinLink These Bayer varieties have the designation T on the bag or in the variety name. TwinLink varieties contain two genes that produce proteins toxic to caterpillar pests. 2 Mississippi Cotton Variety Trials, 206

9 For more information on utilizing herbicide-resistant traits and alternative weed-control practices, consult MSU Extension Publication 532, Weed Control Guidelines for Mississippi available online at sites/default/files/publications/publications/p532_.pdf. For more information on utilization of transgenic traits with insecticidal properties consult MSU Extension Publication 247 Insect Control Guide for Agronomic Crops available online at sites/default/files/publications/publications/p247_0.pdf. CONSIDERATIONS FOR SELECTION Yield performance among common varieties evaluated over multiple locations, environments, or years will normally vary. Therefore, selection decisions should be made from within the range of top-yielding varieties. Newer varieties with limited available data should be cultivated to minimal acreage until further testing validates performance across multiple years and locations. Generally, there is no one variety that is the silver bullet. Therefore, choosing multiple varieties allows for flexibility in relative maturity, management decisions, and risk aversion. Lint yield and potential profitability should be the primary factor when choosing a variety, but do not discount fiber quality and traits contained within a given For each trial conducted in 206, data was submitted to the upland cotton loan valuation aid. This tool, developed by Dr. Larry Falconer, is supported by Cotton Incorporated. It allows for calculation of Commodity There are numerous methods to pick or highlight the top-yielding varieties across locations to develop a short list of promising varieties for future plantings. For soybean and corn, the short list is a powerful aid in selecting varieties due to the sheer number of available options. For cotton, however, the list of available varieties that perform well and are adapted to the Midsouth TOP-YIELDING VARIETIES variety, as well. Do not underestimate the discounts associated with high micronaire, which can be significant. A good performance indicator when selecting a variety is the overall mean of the trial. Comparing an individual variety to the trial mean can lend an indication of how that particular variety compared to the trial as a whole. A variety with a mean lint yield greater or much greater than the overall trial mean generally will perform well. Remember, there can be a full 4-day difference in maturity between cotton varieties. However, most leading varieties, including those submitted to this year s trial, tend to be more mid- to early-maturing than varieties of the past. LOAN VALUATION DECISION AID Credit Corporation cotton loan premium and discount values based on yields and HVI classing information. The program is updated annually. is short on its own. The recent trend has been for fewer cotton varieties to be submitted for testing to university OVT trials across the Midsouth over the last 0 years with changes in the industry. Therefore, it is important to select a variety that has performed well in the Mississippi OVT or other Midsouth university OVT trials. Mississippi Agricultural and Forestry Experiment Station 3

10 Table. Varieties submitted for testing by participating industry partners, 206. Industry contact Variety trial entries Americot Inc. NexGen Varieties NG 460 B2XF NG 3406 B2XF Tom Brooks AMX 604 B2XF NG 3522 B2XF NG 3405 B2XF NG 5007 B2XF Bayer Crop Science ST 4747GLB2 BX 737GLT Andy White ST 4848GLT BX 738GLT ST 4946GLB2 BX 739GLT ST 4949GLT BX 773GLTP ST 55GLT BX 775GLTP ST 682GLT Crop Production Services/Dyna-Gro Seed DG 3385 B2XF DG 3757 B2XF Scott Cummings DG 3526 B2XF DG CPS6654 B2XF International Seed Technology BRS-286 BRS-336 Carmen Carvajal BRS-293 Monsanto DP 32 B2RF DP 64 B2XF Dave Albers DP 58 B2XF DP 639 B2XF DP 522 B2XF DP 646 B2XF DP 538 B2XF DP 725 B2XF DP 553 B2XF MON 6R229 B2XF DP 555 B2RF PhytoGen Seed Co. PHY 32 WRF PHY 495 W3RF Brooks Blanche PHY 333 WRF PHY 496 W3RF PHY 339 WRF PHY 499 WRF PHY 444 WRF PHY 552 WRF Seed Source Genetics SSG CT 20 Ed Jungmann SSG UA 222 Winnfield Solutions, LLC Robert Cossar Standard entry used for check purposes. CG 3475 B2XF CG 3885 B2XF 4 Mississippi Cotton Variety Trials, 206

11 Table 2. One-year mean yield performance and fiber characteristics for OVT varieties submitted for testing in 206 averaged across all (0) testing locations. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 444 WRF PHY 32 WRF PHY 496 W3RF DP 646 B2XF PHY 495 W3RF ST 4949GLT PHY 552 WRF DP 555 B2RF PHY 333 WRF PHY 499 WRF NG 3522 B2XF SSG-UA BX 737GLT PHY 339 WRF DP 639 B2XF DP 32 B2RF NG 5007 B2XF DP 58 B2XF DP 553 B2XF DG 3757 B2XF DP 725 B2XF BX 738GLT BX 775GLTP NG 3406 B2XF CG 3885 B2XF ST 4848GLT ST 4747GLB ST 55GLT AMX 604 B2XF DP 522 B2XF DG CPS 6654 B2XF NG 3405 B2XF ST 4946GLB ST 682GLT BX 773GLTP DP 64 B2XF DP 538 B2XF CG 3475 B2XF BRS DG 3385 B2XF MON 6R229 B2XF BRS BRS SSG-HQ 20 CT NG 460 B2XF DG 3526 B2XF BX 739GLT Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. Mississippi Agricultural and Forestry Experiment Station 5

12 Table 3. Two-year mean lint yield performance of varieties cultivated at three locations in the Delta region during 205 and 206. Variety Clarksdale Stoneville Tunica Average across location and yr. lb/a lb/a lb/a lb/a lb/a lb/a lb/a PHY 32 WRF PHY 552 WRF PHY 496 W3RF DP 32 B2RF PHY 444 WRF DP 646 B2XF ST 4949GLT DP 522 B2XF DP 58 B2XF NG 3405 B2XF ST 4848GLT PHY 499 WRF DP 639 B2XF SSG-UA DP 555 B2RF DG 3385 B2XF PHY 333 WRF NG 3406 B2XF ST 682GLT NG 5007 B2XF PHY 495 W3RF PHY 339 WRF DP 64 B2XF CG 3885 B2XF ST 4747GLB DP 538 B2XF ST 55GLT ST 4946GLB DP 553 B2XF SSG-HQ 20 CT BRS BRS Table is sorted based on average across location and year lint yield means (i.e., from greatest to lowest lint yield). 6 Mississippi Cotton Variety Trials, 206

13 Table 4. Two-year mean lint yield performance of varieties cultivated at four locations in the Hill region during 205 and 206. Variety Brooksville Senatobia Starkville Verona Avg. across location and yr. lb/a lb/a lb/a lb/a lb/a lb/a lb/a lb/a lb/a PHY 444 WRF DP 555 B2RF DP 646 B2XF PHY 499 WRF ST 4949GLT PHY 333 WRF DP 553 B2XF PHY 496 W3RF PHY 495 W3RF DP 538 B2XF PHY 339 WRF ST 682GLT PHY 552 WRF PHY 32 WRF CG 3885 B2XF DP 639 B2XF NG 3406 B2XF DP 58 B2XF DP 522 B2XF DP 32 B2RF ST 4747GLB SSG-UA ST 4946GLB NG 5007 B2XF ST 55GLT NG 3405 B2XF ST 4848GLT BRS DP 64 B2XF DG 3385 B2XF SSG-HQ 20 CT BRS Table is sorted based on average across location and year lint yield means (i.e., from greatest to lowest lint yield). Mississippi Agricultural and Forestry Experiment Station 7

14 Table 5. One-year mean yield performance of varieties cultivated at six locations in the Delta region, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 32 WRF ST 4949GLT PHY 496 W3RF DP 32 B2RF NG 3522 B2XF PHY 333 WRF PHY 552 WRF DP 646 B2XF BX 737GLT PHY 499 WRF SSG-UA PHY 444 WRF DP 725 B2XF PHY 495 W3RF DP 58 B2XF DP 555 B2RF BX 775GLTP AMX 604 B2XF NG 3406 B2XF PHY 339 WRF DP 522 B2XF BX 738GLT BX 773GLTP ST 4946GLB DP 639 B2XF NG 5007 B2XF CG 3885 B2XF NG 3405 B2XF DP 64 B2XF ST 4848GLT CG 3475 B2XF MON 6R229 B2XF ST 4747GLB DP 538 B2XF DG CPS 6654 B2XF ST 55GLT DG 3385 B2XF DG 3757 B2XF ST 682GLT NG 460 B2XF DP 553 B2XF DG 3526 B2XF BRS CONV SSG-HQ 20 CT BRS BX 739GLT BRS Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. 8 Mississippi Cotton Variety Trials, 206

15 Table 6. One-year mean yield performance of varieties cultivated at four locations in the Hill region, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 444 WRF DP 646 B2XF PHY 495 W3RF DP 555 B2RF PHY 496 W3RF ST 4949GLT SSG-UA PHY 32 WRF PHY 333 WRF PHY 552 WRF PHY 499 WRF BRS BX 737GLT NG 3522 B2XF DG 3757 B2XF PHY 339 WRF DP 639 B2XF CG 3885 B2XF DP 58 B2XF DP 553 B2XF ST 55GLT BX 738GLT BRS NG 5007 B2XF DG CPS 6654 B2XF ST 682GLT ST 4747GLB NG 3406 B2XF DP 32 B2RF ST 4848GLT BRS BX 775GLTP DP 538 B2XF DP 522 B2XF NG 3405 B2XF ST 4946GLB AMX 604 B2XF BX 739GLT BX 773GLTP SSG-HQ 20 CT DP 64 B2XF CG 3475 B2XF DP 725 B2XF DG 3385 B2XF MON 6R229 B2XF DG 3526 B2XF NG 460 B2XF Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. Mississippi Agricultural and Forestry Experiment Station 9

16 Table 7. Mean yield performance and fiber characteristics for cotton varieties cultivated on nonirrigated Brooksville silty clay at the Black Belt Branch Experiment Station in Noxubee County, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 444 WRF ST 4848GLT PHY 496 W3RF PHY 495 W3RF PHY 499 WRF DP 555 B2RF PHY 333 WRF NG 3522 B2XF PHY 552 WRF ST 55GLT PHY 339 WRF BRS PHY 32 WRF DP 553 B2XF DP 639 B2XF DP 32 B2RF NG 3406 B2XF ST 4946GLB DP 646 B2XF DP 64 B2XF CG 3885 B2XF ST 682GLT BX 737GLT ST 4747GLB DG 3757 B2XF NG 5007 B2XF BRS DG CPS 6654 B2XF NG 460 B2XF SSG-UA BRS CONV BX 739GLT BX 738GLT AMX 604 B2XF MON 6R229 B2XF DP 538 B2XF DP 522 B2XF SSG-HQ 20 CT CG 3475 B2XF BX 775GLTP NG 3405 B2XF BX 773GLTP DP 725 B2XF ST 4949GLT DG 3385 B2XF DP 58 B2XF DG 3526 B2XF Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. 0 Mississippi Cotton Variety Trials, 206

17 Table 8. Mean yield performance and fiber characteristics for cotton varieties cultivated on nonirrigated Dubbs very fine sandy loam on Cliff Heaton Farms in Coahoma County near Clarksdale, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 552 WRF DP 553 B2XF PHY 499 WRF DP 555 B2RF DG 3526 B2XF PHY 444 WRF PHY 32 WRF DP 639 B2XF SSG-UA DG 3757 B2XF DG CPS 6654 B2XF ST 4949GLT BX 737GLT DP 725 B2XF DP 32 B2RF PHY 496 W3RF BX 775GLTP DP 538 B2XF DP 646 B2XF PHY 495 W3RF ST 682GLT CG 3885 B2XF ST 4946GLB NG 5007 B2XF BRS ST 55GLT NG 3405 B2XF NG 3406 B2XF BX 773GLTP PHY 339 WRF NG 3522 B2XF MON 6R229 B2XF DP 58 B2XF SSG-HQ 20 CT NG 460 B2XF AMX 604 B2XF DP 522 B2XF BX 739GLT ST 4848GLT PHY 333 WRF ST 4747GLB BRS DG 3385 B2XF BRS BX 738GLT DP 64 B2XF CG 3475 B2XF Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. Mississippi Agricultural and Forestry Experiment Station

18 Table 9. Mean yield performance and fiber characteristics for cotton varieties cultivated on a dryland Tensas silty clay loam on Mark Kimmel Farms near Itta Bena, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 495 W3RF PHY 339 WRF DP 553 B2XF PHY 499 WRF NG 5007 B2XF PHY 444 WRF BX 775GLTP ST 682GLT DG 3757 B2XF DP 58 B2XF DP 555 B2RF DP 646 B2XF PHY 496 W3RF PHY 333 WRF AMX 604 B2XF ST 4949GLT PHY 32 WRF CG 3475 B2XF PHY 552 WRF BX 737GLT ST 4747GLB BX 738GLT DP 32 B2RF DP 639 B2XF SSG-UA DG 3385 B2XF BRS BRS BRS DP 725 B2XF NG 3522 B2XF ST 55GLT ST 4946GLB DP 64 B2XF DG CPS 6654 B2XF BX 773GLTP NG 3406 B2XF DP 538 B2XF CG 3885 B2XF ST 4848GLT DG 3526 B2XF SSG-HQ 20 CT DP 522 B2XF NG 460 B2XF MON 6R229 B2XF BX 739GLT NG 3405 B2XF Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. 2 Mississippi Cotton Variety Trials, 206

19 Table 0. Mean yield performance and fiber characteristics for cotton varieties cultivated on a pivot-irrigated Dundee silt loam at George Cunningham and Phil Nichols Farms near Omega, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb NG 5007 B2XF AMX 604 B2XF DP 522 B2XF ST 4949GLT NG 3522 B2XF PHY 496 W3RF PHY 32 WRF MON 6R229 B2XF DP 58 B2XF DP 639 B2XF DP 725 B2XF CG 3885 B2XF PHY 552 WRF NG 460 B2XF DP 646 B2XF DP 538 B2XF DP 32 B2RF DG 3757 B2XF DP 64 B2XF PHY 333 WRF ST 4848GLT NG 3405 B2XF BRS DP 553 B2XF NG 3406 B2XF CG 3475 B2XF DG CPS 6654 B2XF DP 555 B2RF ST 4946GLB ST 55GLT PHY 499 WRF PHY 444 WRF ST 682GLT PHY 495 W3RF PHY 339 WRF DG 3526 B2XF BX 737GLT ST 4747GLB BX 775GLTP DG 3385 B2XF BX 738GLT SSG-UA BX 739GLT BX 773GLTP BRS SSG-HQ 20 CT BRS Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. Mississippi Agricultural and Forestry Experiment Station 3

20 Table. Mean yield performance and fiber characteristics for cotton varieties cultivated on a nonirrigated soil at Kenny Hurt Farms near Senatobia, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb DP 646 B2XF DP 58 B2XF DG CPS 6654 B2XF ST 4949GLT PHY 333 WRF PHY 496 W3RF PHY 32 WRF NG 3522 B2XF PHY 495 W3RF DP 64 B2XF PHY 339 WRF DP 522 B2XF DP 555 B2RF PHY 444 WRF DP 639 B2XF PHY 552 WRF BX 738GLT NG 3405 B2XF DP 725 B2XF DG 3757 B2XF NG 5007 B2XF CG 3885 B2XF AMX 604 B2XF DP 538 B2XF ST 4848GLT MON 6R229 B2XF BX 773GLTP ST 4747GLB BX 737GLT BX 775GLTP DP 32 B2RF PHY 499 WRF ST 55GLT DP 553 B2XF CG 3475 B2XF ST 4946GLB NG 3406 B2XF DG 3526 B2XF ST 682GLT DG 3385 B2XF NG 460 B2XF BX 739GLT Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. Conventional varieties are not reported due to damage from glyphosate drift. 4 Mississippi Cotton Variety Trials, 206

21 Table 2. Mean yield performance and fiber characteristics for cotton varieties cultivated on an irrigated Dundee loam on Porter Farms near Sidon, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb ST 4949GLT PHY 495 W3RF PHY 499 WRF PHY 333 WRF PHY 496 W3RF PHY 444 WRF NG 3522 B2XF PHY 32 WRF PHY 552 WRF BX 738GLT DP 646 B2XF NG 3406 B2XF DP 555 B2RF DP 32 B2RF SSG-UA PHY 339 WRF BX 737GLT ST 4848GLT BX 773GLTP NG 3405 B2XF BRS DP 64 B2XF ST 55GLT DP 725 B2XF BX 775GLTP NG 5007 B2XF DG CPS 6654 B2XF DP 522 B2XF DP 58 B2XF DP 639 B2XF DG 3385 B2XF DP 538 B2XF ST 4747GLB BRS ST 4946GLB ST 682GLT CG 3475 B2XF CG 3885 B2XF MON 6R229 B2XF DP 553 B2XF SSG-HQ 20 CT BRS AMX 604 B2XF DG 3757 B2XF DG 3526 B2XF NG 460 B2XF BX 739GLT Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. Mississippi Agricultural and Forestry Experiment Station 5

22 Table 3. Mean yield performance and fiber characteristics for cotton varieties cultivated on a nonirrigated Marietta fine sandy loam at the MSU Plant Science Research Center near Starkville, Mississippi, 206. Variety Seed cotton Lint Lint Length Micronaire Strength Uniform. Elongation Loan yield yield value lb/a lb/a % in g/tex % % /lb PHY 444 WRF DP 553 B2XF DG 3757 B2XF DP 538 B2XF SSG-UA ST 682GLT PHY 339 WRF DP 646 B2XF BX 739GLT DP 32 B2RF DP 555 B2RF ST 4747GLB BRS NG 3522 B2XF NG 3406 B2XF PHY 499 WRF BX 737GLT DG CPS 6654 B2XF BRS NG 5007 B2XF BX 775GLTP CG 3475 B2XF DP 58 B2XF CG 3885 B2XF PHY 495 W3RF PHY 496 W3RF PHY 32 WRF BRS NG 3405 B2XF DP 639 B2XF DP 522 B2XF ST 55GLT DG 3385 B2XF AMX 604 B2XF BX 773GLTP BX 738GLT PHY 333 WRF PHY 552 WRF ST 4848GLT ST 4946GLB SSG-HQ 20 CT ST 4949GLT DG 3526 B2XF MON 6R229 B2XF DP 64 B2XF DP 725 B2XF NG 460 B2XF Overall Mean LSD (0.05) C.V. (%) Lint yields in bold type within a column are not significantly different from the numerically greatest yielding variety. 6 Mississippi Cotton Variety Trials, 206