Wilson Faircloth's research while affiliated with University of Florida and other places

Publications (46)

Article
The critical aspect of production agriculture in the southeastern US with increasing associated costs is to improve economic and agronomic sustainability. A four yr sod-based rotation system consisting of two yr of bahiagrass (Paspalum notatum Flueggé) (grazed or non-grazed) followed by a yr of peanut (Arachis hypogaea L.) and a yr of cotton (Gossy...
Article
Full-text available
Acreage of reduced-tillage peanut production is increasing due to reduced production costs and increased environmental and economic benefits compared to conventional systems. Experiments were conducted in Alabama and Georgia between 2005 and 2007 to evaluate a strip-tillage system utilizing a high-residue cereal rye cover crop, in comparison to a c...
Article
The profile color class method developed by Williams and Drexler in 1981 for the prediction of peanut harvest has proven to be a relative description of peanut maturity and is currently used by growers. However, the method requires the subjective visual classification of pods based on the development of color in the mesocarp layer of the hull which...
Conference Paper
Water conservation in agricultural production is a common priority across both the Southwest and the Southeast U.S., even though annual rainfall totals in the Southeast would appear to be more than adequate to meet crop demand. However crop water deficits are a problem in the Southeast because of the predominantly sandy soils and rainfall distribut...
Article
Legume seeds and peanuts, in particular, are an inexpensive source of plant proteins and edible oil. A comprehensive understanding of seed metabolism and the effects of water-deficit stress on the incorporation of the main storage reserves in seeds, such as proteins, fatty acids, starch, and secondary metabolites will enhance our ability to improve...
Article
Peanut is often grown in the U.S. on sandy soil with limited water holding capacity. Since nitrogen fixation activity of other grain legume species, and some peanut cultivars, has been found to be especially sensitive to soil drying, yield improvement may be possible by identifying and/or breeding cultivars with nitrogen fixation resistance to wate...
Article
Water-use efficiency is often genetically correlated with specific leaf area (SLA) and leaf C isotopic composition (delta C-13) in peanut (Arachis hypogaea L.). The objectives of this study were to examine the effects of environment, genotype, and genotype x environment interaction on SLA, delta C-13, harvest index (HI), and yield and to estimate h...
Article
Palmer amaranth is one of the most troublesome weeds in the southeast. Significant reductions in cotton yield because of Palmer amaranth competition warrant intense control efforts consisting of both PRE and POST herbicides. Flumioxazin is a soil-active, protoporphyrinogen oxidase-inhibiting herbicide that is labeled for use in cotton 14 to 21 d be...
Article
Water-deficits and high temperatures are the predominant factors limiting peanut production across the U.S., either because of regional aridity or untimely rainfall events during crucial crop developmental periods. In the southern High Plains of west Texas and eastern New Mexico, low average annual rainfall (450 mm) and high evaporative demand nece...
Article
A five-year study to investigate the potential interaction of conservation tillage with reduced irrigation amounts was conducted near Dawson, GA on peanut (Arachis hypogaea L.). Conventional tillage was compared to two conservation tillage programs (wide-strip and narrow-strip tillage) under four irrigation levels (100, 66, 33, and 0% of a recommen...
Article
Full-text available
With increasing production costs in the southeastern US, cropping systems that improve agronomic and economic sustainability are critical. A sod-based system utilizing a two year rotation of establishing and grazing bahiagrass (Paspalum notatum Flueggé) followed by a year of peanut (Arachis hypogaea L.) and a year of cotton (Gossypium hirsutum L.)...
Article
Although the Southeast United States receives an average annual precipitation of 1300 mm, corn (Zea mays L.) yield is often limited by erratic seasonal distributions. Irrigation studies were conducted from 2001 through 2008 on a Greenville fine sandy loam. Irrigation rates of 100, 66, 33%, and a non-irrigated control were addressed with the 100% tr...
Article
Full-text available
Palmer amaranth is a troublesome species across the southern US, and has become a serious problem in the SE in recent years. Resistance to acetolactate synthase (ALS) inhibiting herbicides has made control of Palmer amaranth even more difficult for peanut producers. Field studies were conducted in 2008 and 2009 to determine the impact of three rye...
Article
Full-text available
Peanut quality parameters were analyzed across four irrigation levels during the 2002 through 2007 crop years. The peanut quality parameters consisted of total sound mature kernels and sound splits (farmer stock grade), shelling outturn by commercial edible size, accept and reject kernels by commercial edible size, seed germination, and aflatoxin....
Article
Understanding differences among peanut (Ara-chis hypogaea L.) cultivars in growth and phenol-ogy and the interactions with environment (G X E interactions) for these traits allows predictions for yield potential or performance in variable environ-ments. Despite the importance of this information, very little quantitative data exists on the differen...
Article
Recurrent problems with peanut seed germination and stand establishment have raised concerns about the potential effects of herbicides on peanut seed quality. Field trials were conducted in south Georgia in 2005 and 2006 to evaluate the effects of imazapic and 2,4-DB on peanut yield, grade, incidence of tomato spotted wilt virus (TSWV), and seed ge...
Conference Paper
Drought is a major factor in reduced productivity in peanuts. Cultivars that have high water-use efficiency have the potential to enhance the yield of the crop. Studies have shown that pod yield is a function of water transpired (T), water-use efficiency (WUE), and harvest index (HI). It is logistically difficult to measure WUE (the ratio of biomas...
Article
Full-text available
Peanuts are not often used as a true oilseed crop, especially for the production of fuel. However, peanut could be a feedstock for biodiesel, especially in on-farm or small cooperative businesses, where producers can dictate the cost of making their own fuel. Field studies were conducted in 2005 and 2006 to assess low-cost weed-control systems for...
Article
Full-text available
Field experiments were conducted in Alabama during 1999 and 2000 to test the hypothesis that any glyphosate-induced yield suppression in glyphosate-resistant cotton would be less with irrigation than without irrigation. Yield compensation was monitored by observing alterations in plant growth and fruiting patterns. Glyphosate treatments included a...
Article
Six weed control programs with and without irrigation were investigated in a newly established pecan orchard. Irrigation increased crown diameter growth in only one of seven growing seasons but increased nut yield an average of 35% in the first two bearing years. Weed control program significantly influenced crown diameter beginning in the fourth g...
Article
Field studies were conducted in Alabama in 1998 and 1999 to evaluate fomesafen preemergence (PRE) in glyphosate-resistant cotton. Fomesafen (0.3 and 0.4 kg ai/ha), fluometuron (1.4 kg ai/ha), and pyrithiobac (0.05 kg ai/ha) were applied alone or in tank mixtures. Glyphosate (0.4 kg ae/ha) was applied postemergence over-the-top (POT) and postemergen...
Article
Several herbicide-based weed management programs for glyphosate-tolerant cotton were compared in eight field studies across Alabama during 1996 and 1997. Weed management programs ranged from traditional, soil-applied residual herbicide programs to more recently developed total postemergence (POST) herbicide programs. Pitted morningglory and sicklep...
Article
Full-text available
Bengal dayflower (also known as tropical spiderwort) is one of the most troublesome weeds in peanut in Georgia, United States. Field studies conducted in 2004 and 2005 evaluated the relationship between the duration of Bengal dayflower interference and peanut yield in an effort to optimize the timing of weed control. In 2004, the critical period of...
Article
Field studies were conducted to assess two sulfur-containing additives for use with glyphosate applied postemergence to glyphosate-resistant cotton for the control of sicklepod and yellow nutsedge. Neither diammonium sulfate (AMS) nor ammonium thiosulfate (ATS), both applied at 2.24 kg/ha, increased control of either species. Effective control of b...
Article
Field studies were conducted at the Alabama Agricultural Experiment Station near Shorter, AL, from 1998 to 2000 to evaluate six commercial spray adjuvants and their effects on glyphosate applied to cotton with an air-assisted sprayer. Each adjuvant was evaluated with a conventional sprayer calibrated to deliver 94 L/ha solution and a low-volume, ai...
Article
In 2004 and 2005, glyphosate + diuron and flumioxazin + MSMA were applied POST-directed to cotton at 20, 30, 40, and 50 cm in height. Herbicides were directed to either the lower 2 cm of the cotton stem or to the lower 50% of the cotton stem to determine the impact of application timing and placement on cotton response. Glyphosate + diuron resulted...
Article
Full-text available
Drying, cleaning, and shelling peanuts represents approximately one-third of the costs of growing, harvesting, and processing peanuts for oil extraction. A conventional two-row peanut combine normally used to thresh windrowed peanuts was modified to shell the peanuts as they were harvested. Peanuts were dug, windrowed, and allowed to partially dry...
Article
Full-text available
Transcriptome expression analysis in peanut to date has been limited to a relatively small set of genes and only recently has a significant number of ESTs been released into the public domain. Utilization of these ESTs for oligonucleotide microarrays provides a means to investigate large-scale transcript responses to a variety of developmental and...
Article
Diagnosis of Tomato spotted wilt virus (TSWV) in peanut can be accomplished by enzyme-linked immunosorbent assay (ELISA) or reverse transcription polymerase chain reaction (RT-PCR) but there has been no report of a direct comparison of the success of the two assays in evaluating infection rates of field-grown peanut. We collected peanut root sample...
Data
Pod abundant transcripts compared to all other tissues. The data provided represent the list of differentially expressed pod abundant transcripts. GO mapping and annotation of probe sequences was performed by Blast2go tool (version 2.2.3).
Data
Differentially expressed tissue specific genes. This table includes the list of statistically significant (p < 0.05) differentially expressed genes, including fold changes and functional descriptions, for leaf, stem, peg, and root tissue-specific genes.
Data
Full-text available
Pathways catalyzed by pod specific enzymes. This figure includes eighteen different pathways catalyzed by 12 pod specific enzymes.
Article
Biodiesels were prepared according to standard procedures from unrefined oils of eight commercially available peanut cultivars and compared for differences in physical properties important to fuel performance. Dynamic viscosity, kinematic viscosity and density were measured from 100 to 15 °C, and differences (p < 0.05) in these physical properties...
Article
Full-text available
Nine sites of cogongrass were included in a study of genotypic diversity and spread dynamics at the point of introduction and its adjacent areas in the southern United States. Clones evaluated with two primer pairs yielded a total of 137 amplified fragment length polymorphism (AFLP) loci of which 102 (74.4%) were polymorphic. Genetic diversity was...
Conference Paper
Drying, cleaning, and shelling peanuts represents approximately one-third of the costs of growing, harvesting, and processing peanuts for oil extraction. A conventional two-row peanut combine normally used to thresh windrowed peanuts was modified to shell the peanuts as they were harvested. Peanuts were dug, windrowed and allowed to partially dry i...
Article
Full-text available
A field experiment was conducted from 1995 to 1999 in central Alabama to determine the effect of repeated applications of glyphosate herbicide on young 'Sumner' pecan trees. Herbicide treatments were applied on 'Sumner' pecan trees varying in age from newly established (first growing season) to established fourth-year growing season trees. Measurem...
Article
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Density and viscosity data as a function of temperature (5-100 °C) were collected for oils (normal and high-oleic) from nine cultivars of peanut. Density decreased linearly (R ² >= 0.99) with increasing temperature for all oils, whereas viscosity (dynamic or kinematic) decreased exponentially with increasing temperature. At any particular temperatu...
Article
Full-text available
To ensure maximum economic return, a peanut producer must accurately predict harvest time, delaying as long as possible to reach optimal crop maturity without risking losses through mechanical damage due to deteriorating peg attachments. Currently utilized methods for predicting peanut maturity are based on hull color determination and are labor-in...
Article
Full-text available
Peanut (Arachis hypogea L.) is typically sown in single or twin rows centered on 91-cm beds. A planter capable of sowing 8 peanut rows on a 182-cm bed was developed by USDA-ARS. This planting pattern optimizes plant spacing and may contribute to crop advantages. Management of soil borne diseases in peanut may be affected by planting patterns. Repli...
Article
In order to take advantage of the increasing demand for and price of corn related to the unprecedented growth of the corn-based ethanol industry, growers in the Southeast need to alleviate weather and soil limitations that have hindered corn production in the region. We present two years of preliminary results from an ongoing research with objectiv...
Article
Full-text available
The ability of peanut gynophores to peg through cover crop residue in reduced tillage systems is a primary concern of many growers and may be hindering adoption of the practice in peanut production. The interaction between tillage and irrigation could also play a major role in final yield. Experiments were conducted during 2004 and 2005 to determin...
Article
Full-text available
Proper crop rotation is essential to maintaining high peanut yield and quality. However, the economic considerations of sustainable cropping systems must incorporate commodity prices, production costs, and yield responses of the crops within the cropping system. Research was conducted at the USDA/ARS National Peanut Research Laboratory's Multi-crop...
Article
Full-text available
Tests were conducted to measure the effect of using bulk seed tenders to load peanut seed into planters. Treated seed were transferred using one of two bulk seed tenders, a pneumatic seed tender and a belt seed tender, and their quality compared to conventional bagged seed (control). Information recorded from each transfer of peanut included the ma...
Article
The ability to accurately assess and predict peanut maturity is a strong determinant of the economic return to the producer as it governs crop quality, flavor, and yield. However, the currently available methods used to predict peanut maturity are based on hull color determination and are somewhat labor-intensive and subject to the observer's abili...
Article
Full-text available
The interaction between reduced irrigation capacity and tillage, including the possible conservation of water with reduced tillage systems, is of vital interest to growers. A field study was initiated in the fall of 2001 to determine crop response under a simulated reduction in irrigation. Three tillage systems were replicated three times each unde...

Citations

... Included in integrated strategies is an increased use of tillage to bury weed seeds at depth beyond successful germination and emergence which threatens adoption and retention of conservation systems (Price et al. 2011(Price et al. , 2016. However, the adoption of cover crops continues to gain attention for their weed suppressive attributes including disrupting establishment and growth of weeds while maintaining crop yield (Aulakh et al. 2015;Norsworthy et al. 2010Norsworthy et al. , 2011Price et al. 2011Price et al. , 2016Price et al. , 2021. Weed suppression after cover crop termination has primarily been shown to be due to plant residue biomass that prevents seed germination and establishment by altering light quantity at the soil surface and providing a physical barrier (Norsworthy et al. 2011;Price et al. 2006;Teasdale 2018). ...
... There were three tiers for SSDI (Tiers 1 to 3), three tiers for sprinkler irrigation (Tiers 5 to 7) and one tier for dryland control (Tier 4) with S3DI embedded withing the dryland tier. All tiers used in this research were 16.5-m wide by 43-m, 46-m, and 61-m long for sprinkler, SSDI, and dryland/S3DI, respectively (Balkcom et al. 2001;Lamb et al. 2010Lamb et al. , 2011Lamb et al. , 2015Lamb, Sorensen, and Butts 2020;Sorensen, Lamb, and Butts 2020). ...
... Approximately one-third of the world's arable land is characterized by arid or semiarid conditions and limited water resources, which reduce the annual crop yields by over 50% (Tuberosa and Salvi, 2006;Toker et al., 2007). Cotton (Gossypium hirsutum L.), as a globally significant cash crop, has been severely affected by drought, making it crucial to explore the strategies of crops to adapt to drought stress to enhance agricultural productivity (Chen et al., 2013). ...
... A shelling efficiency of 98% was reported elsewhere (Chilur and Kumar, 2018). Certain researchers have reported that parameters such as concave size, shelling drum clearance, cylinder speed, the width of the feed gate, and moisture content of groundnuts influence the shelling efficiency of groundnut shellers (Butts et al., 2009;Muhammad and Isiaka, 2019). ...
... Hull-Scrape consists of the destructive collection of plants in the field, followed by detachment of pods from the plants, removal of the exocarp from the pods, and classification according to the pod mesocarp color. Despite being used worldwide, this method is time-consuming, requires skilled labor, and is highly subjective (Colvin et al., 2014). In addition, it does not consider the variability existing within a given production area (Santos et al., 2021;Santos et al., 2022). ...
... Koeler] and U. texana in the absence of herbicide input (Johnson et al. 2010). However, high-residue cover crops, including cereal rye, Italian ryegrass, oats, triticale, and wheat, tested in combination with herbicide programs provided greater weed control and yield advantage relative to no cover (Aulakh et al. 2015;Dobrow et al. 2011;Lassiter et al. 2011). When the cover crop does not produce adequate biomass to provide a dense layer of residue on the ground for weed suppression, the benefits of this weed-preventive measure are limited, and a comprehensive herbicide program will be required for effective weed management (Dobrow et al. 2011;Johnson et al. 2010). ...
... For example, Garcia et al. (2010) reported differences between maturing varieties V and VI in amount of irrigation water applied and IWP of 65 mm and 0.6 kg m -3 , respectively. In addition, in other legumes, responses to irrigation scheduling were associated with differences in growth habits (Rowland et al., 2010) and genetic differences in water use strategies (Farooq et al., 2019). In this context, it is necessary to conduct trials dealing with different irrigation scheduling methods in accordance with the characteristics of different soybean cultivars. ...
... Harvesting too early often results in a high percentage of immature pods and subsequent high risk of post-harvest aflatoxin contamination (Rucker et al., 1994). In addition, low percentages of sound and mature kernels from early harvest decreases peanut price (Lamb et al., 2010). On the contrary, late harvest can result in yield loss due to pod loss from peg decay and/or seed germination. ...
... The integrated study mentioned above found that soil water content was greater in the grazed sites compared with the non-grazed sites at the 30 and 100 cm depth during mid-season cotton production. The authors credited the increased soil water content to increased cotton root biomass during this stage of plant growth (Loison et al., 2012). In addition, in the irrigated treatments, soil water was greater in the grazed plots compared to the non-grazed plots. ...
... For example, early peanut tillage research in Alabama compared conventional tillage and strip tillage across 17 environments and found peanut yield increased at three sites, decreased at five sites, and was equivalent at nine sites (Hartzog & Adams, 1989). More recent research reported greater peanut yields in either a narrow or wide strip tillage system compared to conventional tillage in three out of five Georgia growing seasons (Faircloth et al., 2012). However, both strip tillage systems were only better than conventional tillage in one out of the five growing seasons. ...