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Impact Of Early-Season Postemergence Co-Applications Of Foliar And Residual Herbicides On Crop Injury, Growth, And Yield In 2,4-D- And Dicamba-Tolerant Cotton (Gossypium Hirsutum L.), Logan N. Vallee
LSU Master's Theses
Studies were conducted in 2021 through 2023 at the LSU AgCenter Dean Lee Research and Extension Center near Alexandria, LA to determine the sensitivity of 2,4-D- or dicamba- tolerant cotton (Gossypium hirsutum L.) to an early season application of a Group 15 and foliar-only herbicides. Both studies were randomized complete block designs with a two-factorial arrangement of treatments with four replications. In the dicamba-tolerant cotton study, Factor A consisted of no foliar-herbicide, dicamba alone, glyphosate alone, or dicamba plus glyphosate. Factor B consisted of either no Group 15 residual herbicide, acetochlor, or S-metolachlor. In the 2,4-D- tolerant cotton …
Evaluation Of The Aquacrop Model For Simulating Cotton Yield Under A Semi-Arid Environment And Different Field Management Practices, Ghorban Ghorbani Nasrabad, Meysam Abedinpour, Abotaleb Hazarjaribi
Evaluation Of The Aquacrop Model For Simulating Cotton Yield Under A Semi-Arid Environment And Different Field Management Practices, Ghorban Ghorbani Nasrabad, Meysam Abedinpour, Abotaleb Hazarjaribi
The Philippine Agricultural Scientist
Cotton plays an important role in increasing productivity in the agricultural sector and related industries in the province of Golestan, Iran. However, the cultivation areas decreased considerably in the last couple of decades due to the high costs of production, water scarcity, and climate change. To encourage sustainable increase in production, crop simulation models are parameterized for each region using observed field data. In this study, the AquaCrop model was calibrated and validated for cotton under different field management scenarios using data from a 3-yr field experiment, which was conducted at the research farm of the National Cotton Research Institute, …
Gossypium Hirsutum As A Study Species To Understand Plant Responses To Drought Stress, Sam Schafer
Gossypium Hirsutum As A Study Species To Understand Plant Responses To Drought Stress, Sam Schafer
The Journal of Purdue Undergraduate Research
No abstract provided.
Origin, Rise And Development Of American Upland Cotton And Their Status At Present. Second Edition, Ed. By F.M. Bourland, J. O. Ware
Research Reports and Research Bulletins
American Upland cotton (Gossypium hirsutum) is a Dixie product. Although the stocks of the species were brought from elsewhere, new types (through series of adaptational changes) formed this distinctive group—the final characteristics of which are a product of the Cotton Belt of the United States. These biological processes were considerably aided by man and the steps of development possibly were about as follows: (a) natural selection took place in the earlier introductions, (b) seed were saved from the more choice stocks, (c) series of subsequent introductions were obtained from the better sources, (d) these were acclimatized and the superior ones …
Short-Term Soil Organic Matter And Carbon Responses To Contrasting Grazing Intensities In Integrated Crop-Livestock Systems, Erick R. Da Silva Santos, Jose C. B. Dubeux, B. G. C. Homem, Cheryl L. Mackowiak, Lynn E. Sollenberger, D. Wright
Short-Term Soil Organic Matter And Carbon Responses To Contrasting Grazing Intensities In Integrated Crop-Livestock Systems, Erick R. Da Silva Santos, Jose C. B. Dubeux, B. G. C. Homem, Cheryl L. Mackowiak, Lynn E. Sollenberger, D. Wright
IGC Proceedings (1997-2023)
Combining integrated crop-livestock systems under no-till management may improve soil organic matter (SOM) build up and improve soil C sequestration. Grazing cover crops appears as a possibility to combine crops and livestock in a farm system. Further SOM and soil C increase can be achieved by adding perennial grasses into crop rotations. However, the effect of grazing intensity in such systems are not fully understood. This 2-yr study investigated short-term effects of cropping system [winter cover crops-summer cotton (Gossypium hirsutum L.) and winter cover crops-summer bahiagrass (Paspalum notatum Flüggé) rotations], grazing intensity (no grazing, heavy, moderate, and light …
Summaries Of Arkansas Cotton Research 2022, Fred Bourland
Summaries Of Arkansas Cotton Research 2022, Fred Bourland
Arkansas Agricultural Experiment Station Research Series
The current economic environment continues to drive the need to produce record or near-record yields to be profitable. Price volatility in 2022 added another level of difficulty in the quest for being profitable. The cotton market saw significant movement after reaching a $1.5802 per pound high in May 2022, cotton prices corrected and more than halved in value at the October 2022 low, and then consolidated around the 80 cents per pound level in December 2022 (Cotton is Consolidating). Great uncertainties still exist for the upcoming season, most of which are outside of our control. These include, but are not …
Survey And Prevalence Of Palmer Amaranth Herbicide Resistance In South Carolina, Mitchell Williams
Survey And Prevalence Of Palmer Amaranth Herbicide Resistance In South Carolina, Mitchell Williams
All Theses
Palmer amaranth is a troublesome weed for growers to control, not only due to its aggressive growth characteristics that limit row-crop production, but because of its resistance to different herbicide modes of action. The first case of herbicide resistance in Palmer amaranth was detected in 1989 and has since grown to nine different herbicide classes throughout the United States. New herbicide modes of action have not been developed since the 1980s, so proper stewardship of the remaining modes of action is important for effective control of Palmer amaranth. Increased herbicide resistance from states bordering South Carolina have been reported; therefore, …
Precision Management Of Inputs In Cotton And Soybean Production In South Carolina, Kyle Smith
Precision Management Of Inputs In Cotton And Soybean Production In South Carolina, Kyle Smith
All Theses
The adoption of precision agriculture technologies and developing specific product use recommendations in cotton and soybean production could help farmers reduce input costs and optimize overall farm profitability. The objectives of this research were to evaluate whether or not the use of variable rate seeding in cotton could increase profitability and to determine the rainfast interval of commonly used insecticides in cotton and soybean production. The first trial, variable rate seeding in cotton, was implemented at the Edisto Research and Education Center near Blackville, SC across five years to evaluate variable rate seeding in cotton. Results from trials in South …
Influence Of Potassium Fertilizer Application Timing On Cotton Production As Related To Soil Potassium On U.S. Coastal Plain Soils, Shruthy Suresh Kumar
Influence Of Potassium Fertilizer Application Timing On Cotton Production As Related To Soil Potassium On U.S. Coastal Plain Soils, Shruthy Suresh Kumar
All Theses
Understanding soil K dynamics is highly significant in cotton production owing to its prominent role in cotton fiber quality. About 31 % of cotton production in the U.S. is concentrated in SE states, with coastal plain soils having low innate K availability. Crop fertilizer-K recommendations are primarily made worldwide and across the U.S. using pre-plant STK concentrations. A literature review on cotton K studies suggests that fertilizer-K recommendations based on pre-plant STK concentrations alone need fine-tuning to meet the increasing K demands in modern cultivars, variations in crop K requirement patterns, and varied soil K supplying capacity. Studies have been …
Arkansas Cotton Variety Test 2022, F. Bourland, A. Beach, B. Milano, B. Guest, C. Kennedy, L. Martin, B. Robertson
Arkansas Cotton Variety Test 2022, F. Bourland, A. Beach, B. Milano, B. Guest, C. Kennedy, L. Martin, B. Robertson
Arkansas Agricultural Experiment Station Research Series
The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant. These annual evaluations will then facilitate the inclusion of new, improved genetic material in Arkansas cotton production. Adaptation of varieties is determined by evaluating the lines at five University of Arkansas System Division of Agriculture research sites (Manila, Keiser, Judd Hill, Marianna, and Rohwer). The 2022 tests at Rohwer were adversely affected …
Characterization And Management Of Auxin-Resistant Palmer Amaranth In Tennessee, Delaney C. Foster
Characterization And Management Of Auxin-Resistant Palmer Amaranth In Tennessee, Delaney C. Foster
Doctoral Dissertations
Palmer amaranth has a long history of evolving resistance to herbicides to the point it has become a significant row crop production obstacle. Cotton and soybean growers were offered new technologies in 2016, expanding in-crop herbicide options to include dicamba or 2,4-D. Within three years of commercialization, dicamba use in these crops increased ten-fold and growers began to report Palmer amaranth escapes in west Tennessee auxin-tolerant production systems. A survey of Palmer amaranth escapes in dicamba and 2,4-D-tolerant cotton and soybean fields in Tennessee was conducted in the fall of 2021 with the objective of determining if poor control was …
Summaries Of Arkansas Cotton Research 2021, Fred Bourland
Summaries Of Arkansas Cotton Research 2021, Fred Bourland
Arkansas Agricultural Experiment Station Research Series
While the basic growth and development of the cotton plant have not changed significantly in recent history, the business of cotton production is ever-changing. The last two years have seen us plant a crop just about as late as we thought possible, yet extended favorable conditions at season's end have been our salvation, helping to lead us to record yields. The economic environment over the last few years has been such that farmers need to produce record or near-record yields to advance. Unfortunately, production levels at the state yield average barely cover out-of-pocket expenses.
Great uncertainties exist for the upcoming …
An In Vitro Approach To Identify Sources Of Resistance To Fusarium Wilt Caused By Fusarium Oxysporum F. Sp. Vasinfectum Race 4 In Domesticated Cotton, Stephen Parris
All Theses
Cotton lint produced by the plants Gossypium barbadense L. (pima cotton) and Gossypium hirsutum L. (upland cotton) is the world’s leading source of renewable textiles. The fibers of the cotton plant have been woven so intricately into our society that it would be hard to imagine life without their products. Cotton breeders must then not only continue to work to improve the quality of cotton fibers (fineness, strength, dyability, etc.) but also to improve the resilience of the plant against biotic and abiotic factors. Fusarium oxysporum f. sp. vasinfectum race 4 (FOV4) is an aggressive fungal pathogen, which causes Fusarium …
Improving Water And Plant Growth Regulator (Pgr) Management Practices In Cotton: Cultivar Physiological Responses And Pgr Rates, Kurt Wedegaertner
Improving Water And Plant Growth Regulator (Pgr) Management Practices In Cotton: Cultivar Physiological Responses And Pgr Rates, Kurt Wedegaertner
Masters Theses
Cotton (Gossypium hirsutum L.) is grown in an increasingly unpredictable climate and often under rainfed conditions. Without irrigation to alleviate common drought conditions, cultivar selection becomes a primary tool in mitigating the negative effects of water-deficit stress. Cultivars can differ in water use under water-limited environments, which can affect crop performance. Moreover, cotton management must involve balancing vegetative and reproductive growth through the use of plant growth regulators (PGR) due to the plant’s perennial growth pattern. The efficacy of PGRs are dependent on many variables including environmental conditions, irrigation, and genetics (cultivar). In 2020 and 2021, a series of …
Effect Of Sowing Date And Topping Process On Some Morphological And Productivity Traits Of Cotton Under A Zone Condition In Al Hasaka Governorate/ Syria, تأثير موعد الزراعة وعملية التطويش في بعض الصفات الشكلية والإنتاجية لمحصول القطن في ظروف منطقة الاستقرار الأولى لمحافظة الحسكة/سورية, Momena Rakkad
Arab Journal of Arid Environments المجلة العربية للبيئات الجافة
This research was carried out during growing season 2014 in Tel Half village (AL Hasaka governorate/Syria) In order to study the effect of sowing date and topping process on some morphological and productivity Traits of cotton (Var. Halab-90 ), planting were applied in tow dates, the first of date planting took place in 19/4/2014, and the second in 5/5/2014.and applying three methods of topping main stem topping, fruit shoots topping, total topping (main stem topping and fruit shoots topping) in addition to control treatment (without topping), The experiment was design according to spilt plot design with three replication, where main …
Arkansas Cotton Variety Test 2021, F. Bourland, A. Beach, B. Milano, C. Kennedy, L. Martin, B. Robertson
Arkansas Cotton Variety Test 2021, F. Bourland, A. Beach, B. Milano, C. Kennedy, L. Martin, B. Robertson
Arkansas Agricultural Experiment Station Research Series
The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant. These annual evaluations will then facilitate the inclusion of new, improved genetic material in Arkansas cotton production. Adaptation of varieties is determined by evaluating the lines at five University of Arkansas System Division of Agriculture research sites (Manila, Keiser, Judd Hill, Marianna, and Rohwer). The 2021 tests at Rohwer were abandoned due …
Summaries Of Arkansas Cotton Research 2020, Fred Bourland
Summaries Of Arkansas Cotton Research 2020, Fred Bourland
Arkansas Agricultural Experiment Station Research Series
In the five years before 2020, cotton acreage in Arkansas had steadily increased from an all-time low of 210,000 acres in 2015 to 610,000 planted acres in 2019. One reason for the increase can be attributed to a downturn in prices received by producers for commodities such as corn and soybean, which compete for acres with cotton. With the worldwide COVID-19 pandemic, cotton mill use dropped significantly during the first half of 2020 https://www.cottongrower.com/market-analysis/ncc-cotton-demand-returning-as-u-s-and-world-economies-rebound/. This disruption of the cotton supply chain was felt across the entire cotton industry. The resulting downturn of cotton prices prior to planting impacted producers planting …
Foliar Applied Boron Not Only Enhances Seed Cotton Yield But Also Improves Fiber Strength And Fineness Of Cotton Cultivars, Muhammad Ashfaq Wahid, Muhammad Saleem, Shahbaz Khan, Sohail Irshad, Mumtaz Akhtar Cheema, Muhammad Farrukh Saleem, Haroon Zaman Khan, Madad Ali, Ali Bakhsh, Zuhair Hasnain, Sara T. Alrashood, Sulaiman Ali Alharbi
Foliar Applied Boron Not Only Enhances Seed Cotton Yield But Also Improves Fiber Strength And Fineness Of Cotton Cultivars, Muhammad Ashfaq Wahid, Muhammad Saleem, Shahbaz Khan, Sohail Irshad, Mumtaz Akhtar Cheema, Muhammad Farrukh Saleem, Haroon Zaman Khan, Madad Ali, Ali Bakhsh, Zuhair Hasnain, Sara T. Alrashood, Sulaiman Ali Alharbi
The Philippine Agricultural Scientist
Cotton (Gossypium hirsutum L.) is as famous as “White Gold” due to its high quality fiber. Boron (B) is one of essential micronutrients involved directly or indirectly in many plant processes. Cotton growth, yield and quality are intensely influenced with B application. A 2 years field based study was conducted to explore the impact of foliar applied B (0.0, 0.5, 1.0, 1.5, 2.0, and 2.5 kg ha-1) on productivity and quality of cotton cultivars (FH-113, MNH-786, and CIM-496). Outcomes of the experiment reflected that application of various levels of B significantly influences the growth and quality attributes …
Fungicide Sensitivity Screening Of Corynespora Cassiicola In Us Soybean And Cotton, Tyler Miles Smith
Fungicide Sensitivity Screening Of Corynespora Cassiicola In Us Soybean And Cotton, Tyler Miles Smith
Doctoral Dissertations
Target spot, caused by the fungus Corynespora cassiicola, is a foliar disease of cotton and soybean. Target spot has become a disease of concern in soybean and cotton production systems. Data for fungicide sensitivity and understanding potential impact on yield is lacking for C. cassiicola. Fungicide resistance is also a concern in C. cassiicola with the increase in resistant pathogens in soybean. With the lack of knowledge about baseline fungicide sensitivity and the concern of fungicide resistance the objectives of this study were: (i) to evaluate fungicide products and mixes in small plot soybean and cotton trials, (ii) …
Arkansas Cotton Variety Test 2020, F. Bourland, A. Beach, E. Brown, C. Kennedy, L. Martin, B. Robertson
Arkansas Cotton Variety Test 2020, F. Bourland, A. Beach, E. Brown, C. Kennedy, L. Martin, B. Robertson
Arkansas Agricultural Experiment Station Research Series
The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant. These annual evaluations will then facilitate the inclusion of new, improved genetic material in Arkansas cotton production. Adaptation of varieties is determined by evaluating the lines at five University of Arkansas System Division of Agriculture research sites (Manila, Keiser, Judd Hill, Marianna, and Rohwer). Entries in the 2020 Arkansas Cotton Variety Test …
Testing Irrigated Cotton Production, J. Aguilar, R. S. Currie, D. Tomsicek, L. Haag, S. Duncan
Testing Irrigated Cotton Production, J. Aguilar, R. S. Currie, D. Tomsicek, L. Haag, S. Duncan
Kansas Agricultural Experiment Station Research Reports
Cotton research was initiated in Garden City, KS, which is the northern rim of the typical cotton production area. Initial results showed that with specific seed varieties and strategic irrigation management, cotton could be grown and provide decent yield in this region. There is still additional research that needs conducted, particularly with regards to germination and seeding rates.
Development And Evaluation Of An Automated Linear Move Fertigation System For Cotton Using Active Remote Sensing, Stewart Bell
Development And Evaluation Of An Automated Linear Move Fertigation System For Cotton Using Active Remote Sensing, Stewart Bell
All Theses
Optimum nitrogen (N) application is essential to the economic and environmental sustainability of cotton production. Variable-rate N fertigation could potentially help farmers optimize N applications, but current overhead irrigation systems normally lack automated site-specific variable-rate fertigation capabilities. The objective of this research was to develop and evaluate an automated variable-rate N fertigation system based on real-time Normalized Difference Vegetation Index (NDVI) measurements from crop sensors integrated with a lateral move irrigation system. For this purpose, NDVI crop sensors and a flow meter were integrated with Arduino microcontrollers and an automated fertigation system was constructed. A computer program was developed to …
Summaries Of Arkansas Cotton Research 2019, Fred Bourland
Summaries Of Arkansas Cotton Research 2019, Fred Bourland
Arkansas Agricultural Experiment Station Research Series
Statewide, temperatures and precipitation were mostly above average (https://www.weather.gov/lzk/cli2019atxt.htm). The 2019 season was the wettest since 2015, and the 7th wettest on record. The wettest month was May, and the driest month was September. By average temperature, the coldest month was January, and the warmest month was August. Considering departures from normal, the most significant warmth occurred in September, which was 7.0 degrees above average. Many fields were muddy or underwater, given a lot of rain early in the year, and extensive river flooding (including the historic Arkansas River flood). It was far too wet in some areas …
Sensitivity Of Enlisttm And Roundup Ready Xtend® Technologies To Auxin Herbicides And Comparison Of Resistance To Susceptible Cotton And Soybean Cultivars, James Rose
Graduate Theses and Dissertations
Increases in weed resistance have led to the development of new herbicide-resistant crop technologies, namely the Roundup Ready Xtend® and EnlistTM weed control systems. These new technologies provide resistance to applications of the synthetic auxins dicamba or 2,4-D, respectively, in traited cotton or soybean. It is unknown if there is any resistance to other herbicides within the synthetic auxin group (WSSA Group 4) in these traited crops. Experiments were conducted with auxin herbicides representing all five families within WSSA Group 4. Herbicides were applied either preemergence (PRE) or postemergence (POST) relative to the crop in a single application. Applications were …
Cover Cropping In Soybean-Corn Rotation System: Economic, Agronomic, And Soil Fertility Impact, Jose Rodolfo Mite
Cover Cropping In Soybean-Corn Rotation System: Economic, Agronomic, And Soil Fertility Impact, Jose Rodolfo Mite
LSU Doctoral Dissertations
Planting winter-annual cover crops prevent soil erosion, reduces water runoff, and improves soil structure and soil quality. This research was conducted from 2017 to 2019 to evaluate the nutrient turnover of different species of cover crops in soils under different row crop production systems in Northeast and Central Louisiana. In Northeast Louisiana (Site 1, 2, and 3), treatments (cover crops and no cover crop) were arranged in a strip trial with three replications. At the Ben Hur Research Station, the treatments included three planting dates (September, October, and November) with [7 kg ha-1 of phosphorus (P) and potassium (K)] …
Arkansas Cotton Variety Test 2019, F. Bourland, A. Beach, E. Brown, C. Kennedy, L. Martin, B. Robertson
Arkansas Cotton Variety Test 2019, F. Bourland, A. Beach, E. Brown, C. Kennedy, L. Martin, B. Robertson
Arkansas Agricultural Experiment Station Research Series
The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant. These annual evaluations will then facilitate the inclusion of new, improved genetic material in Arkansas cotton production. Adaptation of varieties is determined by evaluating the lines at five University of Arkansas System Division of Agriculture research sites (Manila, Keiser, Judd Hill, Marianna, and Rohwer). Entries in the 2019 Arkansas Cotton Variety Test …
The Effects Of Seed-Applied Fluopyram On Root Penetration And Development Of Meloidogyne Incognita On Cotton And Soybean, Tracy Hawk
Graduate Theses and Dissertations
Plant-parasitic nematodes are major pests of cotton and soybean in Arkansas, and across the Southern United States. These nematodes cause more than $3 billion worth of crop losses each year, in part due to lack of available control tactics, such as nematicides. Fluopyram has recently been registered as a seed-treatment nematicide in agronomic crops. The toxicity of fluopyram against Meloidogyne incognita infection has been reported, however, information on root protection provided by fluopyram against Meloidogyne incognita is lacking. The first objective of this research was to evaluate the effect seed-applied fluopyram had on nematode development, root galling, and reproduction on …
Spotted Cotton Oligonucleotide Microarrays For Gene Expression Analysis, Joshua A. Udall, Lex E. Flagel, Foo Cheung, Andrew W. Woodard, Ran Hovav, Ryan Adam Rapp, Jordan M. Swanson, Jinsuk J. Lee, Alan R. Gingle, Dan Nettleton, Christopher D. Town, Z. Jeffrey Chen, Jonathan F. Wendel
Spotted Cotton Oligonucleotide Microarrays For Gene Expression Analysis, Joshua A. Udall, Lex E. Flagel, Foo Cheung, Andrew W. Woodard, Ran Hovav, Ryan Adam Rapp, Jordan M. Swanson, Jinsuk J. Lee, Alan R. Gingle, Dan Nettleton, Christopher D. Town, Z. Jeffrey Chen, Jonathan F. Wendel
Dan Nettleton
Microarrays offer a powerful tool for diverse applications plant biology and crop improvement. Recently, two comprehensive assemblies of cotton ESTs were constructed based on three Gossypium species. Using these assemblies as templates, we describe the design and creation and of a publicly available oligonucleotide array for cotton, useful for all four of the cultivated species. Synthetic oligonucleotide probes were generated from exemplar sequences of a global assembly of 211,397 cotton ESTs derived from >50 different cDNA libraries representing many different tissue types and tissue treatments. A total of 22,787 oligonucleotide probes are included on the arrays, optimized to target the …
Duplicate Gene Expression In Allopolyploid Gossypium Reveals Two Temporally Distinct Phases Of Expression Evolution, Lex E. Flagel, Joshua A. Udall, Dan Nettleton, Jonathan F. Wendel
Duplicate Gene Expression In Allopolyploid Gossypium Reveals Two Temporally Distinct Phases Of Expression Evolution, Lex E. Flagel, Joshua A. Udall, Dan Nettleton, Jonathan F. Wendel
Dan Nettleton
Polyploidy has played a prominent role in shaping the genomic architecture of the angiosperms. Through allopolyploidization, several modern Gossypium (cotton) species contain two divergent, although largely redundant genomes. Owing to this redundancy, these genomes can play host to an array of evolutionary processes that act on duplicate genes. We compared homoeolog (genes duplicated by polyploidy) contributions to the transcriptome of a natural allopolyploid and a synthetic interspecific F1 hybrid, both derived from a merger between diploid species from the Gossypium A-genome and D-genome groups. Relative levels of A- and D-genome contributions to the petal transcriptome were determined for 1,383 gene …
Summaries Of Arkansas Cotton Research 2017, Fred Bourland
Summaries Of Arkansas Cotton Research 2017, Fred Bourland
Arkansas Agricultural Experiment Station Research Series
No abstract provided.