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Mississippi State University Department of Plant and Soil Sciences

Overview
Works: 65 works in 66 publications in 1 language and 71 library holdings
Genres: Academic theses  Periodicals 
Publication Timeline
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Most widely held works by Mississippi State University
The effect of hose type and cleanout procedure on crop injury due to herbicide residues by Gary Thomas Cundiff( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Field and greenhouse experiments were conducted to determine the effect of auxin injury on soybean and cotton due to spray hose material, formulation and cleanout procedures on auxin equipment cleanout. Visual estimations of injury (VEOI) in wheat, height reduction, and yield reduction due to rimsulfuron and glyphosate titration was higher when compared to rimsulfuron only treatments with respect to 1/2X through the 1/256X treatments. Sequestration of 2,4-D within agricultural hose types did differ due to hose type and is confirmed by analytical testing, but field observation of wheat did not show differences among treatments due to VEOI, height reduction or yield reduction. Using soybean as a bio-indicator, differences did occur with respect to dicamba sequestration in agricultural hose types with respect to VEOI, height reduction, node reduction, yield reduction and ppm analyte retained. Results indicate chemical makeup of hose type in determination of ppm analyte dicamba retained. Cleaning procedures of water or ammonia do not prove to be different with respect to VEOI, height reduction, yield reduction or ppm analyte retained. Sequestration of 2,4-D within valved manifold systems and using water or ammonia as cleanout procedures in conjunction with rinse procedures did not show differences with respect to VEOI, height reduction, nodes above cracked boll (NACB), yield reduction or ppm analyte retained. It was not until standard 2,4-D applications were applied in field experiments when differences were observed. Deactivation of dicamba and 2,4-D using the Fenton procedure within various rates, showed an interaction with respect to VEOI, height reduction, node reduction, yield reduction and ppm analyte. Using soybean as a bio-indicator showed differences with the Fenton procedure deactivating the dicamba analyte in the 1/16X, 1/64X and 1/256X rate with respect to VEOI, height reduction, node reduction, yield reduction and ppm analyte retained. Using cotton as a bio-indicator showed differences with the Fenton procedure deactivating the 2,4-D analyte in every rate with respect to VEOI, height reduction, yield reduction and ppm analyte
Improved production practices in a double-cropping system with cotton (Gossypium hirsutum) and wheat (Triticum aestivum) by Tyler Dixon( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

With the recent rise of wheat (Triticum aestivum L.) prices and the spike in cotton (Gossypium hirsutum L.) prices in 2011, a renewed interest in double-cropping cotton following wheat production occurred. Research was established to improve production practices of double-cropped cotton at three Mississippi locations, Starkville (2012-2013), Brooksville (2012-2013), and Stoneville (2013). Cotton following wheat has the potential to result in a higher return compared to soybeans; however, the financial risk associated with cotton is far greater than with soybeans. Growers should increase seeding rates by 20% when double-cropping cotton following wheat and burn the wheat stubble to maximize yield. No definitive N rate was observed to maximize yield; however, a normal rate full-season cotton is not recommended as high N rates delayed maturity and increased the potential yield loss
S-metolachlor phytotoxicity in sweetpotato by Issah Alidu Abukari( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

S-metolachlor is an effective herbicide used to control/suppress annual grasses, nutsedges and several broadleaf weeds in sweet potato. However, a decline in storage root quality and yield has been reported under certain environmental conditions. Information is limited on the effect of S-metolachlor application followed immediately by rainfall on sweet potato growth and development under different temperatures, as well as the optimum application time. Therefore, the objectives of this study were to evaluate sweet potato responses to interactive effects of S-metolachlor, temperature and rainfall, and to determine S-metolachlor optimum application time. A sunlit, controlled environment experiment was conducted to investigate sweet potato response to S-metolachlor and rainfall immediately after application under different temperatures. Sweet potato slips were transplanted into sandy soil filled pots. Treatment combinations included five levels of S-metolachlor, 0.00, 0.86, 1.72, 2.58 and 3.44 kg ha-1, two levels of rainfall, 0 and 38 mm and three temperatures, 25/17, 30/22 and 35/27 °C, day/night. After POST application of S-metolachlor and rainfall, all plants were transferred to sunlit growth chambers that were maintained at their respective temperatures and ambient CO2 concentration for 60 days. In another experiment, S-metolachlor application time was varied to investigate sweet potato growth and development. Two levels of S-metolachlor 0.0 and 1.0 kg ha-1 and three application times 0, 5 and 10 days after transplanting (DAT) were used and plants were harvested five times, 5, 10, 15, 20 and 80 DAT to estimate plant growth and development. Shoot, root and total plant biomass yields declined with increasing concentration of S-metolachlor across temperatures. In addition, storage root yield and quality decline was S-metolachlor rate dependent and aggravated by rainfall immediately after herbicide treatment across temperatures. S-metolachlor was more injurious on most plant component parameters in the optimum and high temperatures where plant growth was vigorous than in the low temperatures. S-metolachlor application at 0 and 5 days affected sweet potato growth, including storage roots, but delaying until 10 days minimized the injury. These results can be used to weigh the risk of crop injury against the weed control benefits of S-metolachlor when making management decisions, and to determine application time based on weather information
SOYDATA : GLYCIM validation data sets( Book )

1 edition published in 2000 in English and held by 1 WorldCat member library worldwide

Rice cultivars responses to moisture stress during seed germination and early-seedling growth by Bhupinder Singh( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Drought is the major environmental factor affecting crop growth, yield and quality. Two experiments were conducted to understand rice genotypic variability responses to drought stress conditions during seed germination and early-seedling growth. In Experiment I, the influence of wide range of osmotic stress on seed germination properties of 15 rice cultivars were studied using polyethylene glycol media. In Experiment II, seedling morph-physiological parameters including root traits were quantified by subjecting rice seedlings to three different soil moisture treatments, 100, 66 and 33% field capacity. Rice cultivars differed in their response to drought at both the stages. Cultivars were classified into different drought tolerant groups based cumulative drought response indices. Based on seed- and early-season growth and developmental responses, RU1104122, Rex, CL111 and RU1304154 were identified as drought tolerant among the rice cultivars tested. The identified tolerant cultivars will be a source for rice breeders to develop new drought tolerant cultivars
Evaluation of rapidly growing vegetation on Mississippi roadsides by Timothy Bradford( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Non-point source pollution caused by erosion from road construction poses hazardous environmental effects. Percolation and infiltration of nutrients into groundwater can also be detrimental to the surrounding environment. In addition, annual roadside maintenance budget exceeded $14 dollars in 2011 for Mississippi. Objectives of this research were to evaluate rapidly established short-statured species in an effort to prevent erosion, combat non-point source pollution, reduce mowing cost, and provide quick cover following propagation. Factors evaluated were rate of establishment, plant cover, and mowing requirement. MDOT's standard seed mix was evaluated along with Pennington's SlopeMaster (T̳M̳) product and different combinations of selected plant species. Visual and image analysis showed oilseed radish plants established the quickest and provided the most cover. All sod treatments provided instant cover while Pennington's Slopemaster (T̳M̳) product, as well as mixes that contained bermudagrass or bahiagrass, provided sufficient cover, but not in a timely manner
Impact of cotton seed treatments and preemergence herbicides on thrips infestations by Drake Copeland( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Research was conducted in 2013 and 2014 to evaluate the influence of cotton (Gossypium hirsutum L.) insecticidal seed treatments, planting date, and preemergence herbicides on thrips (Frankliniella fusca) infestations in cotton. Studies included a preemergence and soil texture evaluation on cotton development, an evaluation of thrips infestations, cotton development and yield following application of various preemergence herbicides and insecticidal seed treatments, and a planting date evaluation where different cultivars where planted with exclusion or inclusion of preemergence herbicide use at four different planting dates to determine the effect on thrips infestations, cotton development, and yield
Application of polyacrylamide (PAM) through lay-flat polyethylene tubing: effects on infiltration, erosion, N and P transport, and corn grain yield( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

<p>Polyacrylamides (PAMs) are water-soluble, long-chain synthetic organic polymers that, when applied as a soil amendment, purportedly improves infiltration, decreases sediment and agrochemical transport, and improves crop yield. There is a paucity of data, however, on the effect of PAM applied through lay-flat polyethylene tubing on infiltration, erosion, agrochemical transport, and crop yield for Mid-South soils in furrow irrigated environments. The objective of this thesis was to compile and analyze PAM use in agricultural settings in the United States, and to conduct a 2 year field experiment to assess PAM effects on infiltration, erosion, N and P transport, and corn grain yield on a Dundee silt loam and a Forestdale silty clay loam soil located in Stoneville and Tribbett, Mississippi, respectively. Results indicate PAM has utility to improve infiltration and crop yield in Mid-South production systems, but effects on sediment and N and P transport will be variable and site specific. </p>
Somatic culture and induced mutations of giant miscanthus (Miscanthus x giganteus) by Dinum Perera( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Exploiting induced genetic diversity through using mutagenesis is particularly important in giant miscanthus (Miscanthus x giganteus; Mxg) due to its restricted genetic variability. Experiments were conducted to develop an efficient in vitro propagation protocol for Mxg, induce mutations in Mxg using a chemical mutagen, and select Mxg in vitro for heat tolerance. To optimize in vitro propagation of Mxg, five explant types [i.e. immature inflorescences, shoot apex (in vitro), shoot apex (greenhouse), leaf explants (in vitro), and leaf explants (greenhouse)] were tested on five media. Shoot forming calli from immature inflorescences, an excellent source of explant in Mxg, grown in media with 13.6 microM 2,4-dichlorophenoxyacetic acid (2,4-D) and 0.44 microM 6-benzylaminopurine (BA) resulted in greatest shoot regeneration rate. Optimization of explant and callus type and media resulted in efficient in vitro proliferation of Mxg and the developed protocol was utilized in consecutive experiments of mutation induction and in vitro selection of Mxg for heat tolerance. Immature inflorescence explants (1-2 mm) were treated with 0.6%, 1.2%, and 1.8% of ethyl methanesulfonate (EMS) whereas the calli (1-2 mm³) were treated with 1.2%, 2.4%, and 3.6% of EMS for 90 min. Results of inter simple sequence repeat PCR analysis revealed polymorphisms indicating presence of genetic differences in Mxg putative mutants. In vitro callus cultures (mutagen treated and non-treated) of Mxg subjected to temperature treatments of 45±2°C for 12 hrs or 40±2°C for 7 days were selected for heat tolerance. Assessment results of electrolyte leakage and photosystem II (PS II) efficiency tests indicated a significant difference in percent membrane damage among Mxg clonal lines whereas PSII was weakly affected by the heat stress. The results suggest that in vitro derived Mxg clonal lines may be utilized for further studies of Mxg heat tolerance in developing potential Mxg ecotypes to adapt to different thermal environments. These studies provided the first investigation of in vitro induced mutagenesis in Mxg using a chemical mutagen. Genetic analysis results presented in this study indicates the potential use of developed Mxg putative mutants in future research programs, although significant morphological alterations were not observed during preliminary screening in the greenhouse
Evaluation of producing sand-based sod on a fine-textured native soil using transported sand by John David Vanderford( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Turfgrass establishment on sand-based rootzones is routinely accomplished by using sod produced on a fine-textured native soil. As a result, soil layering occurs, potentially causing initial reduction in water infiltration, rooting, aeration, and overall turfgrass quality. This research was aimed at determining the feasibility of applying sand over existing native soil to produce hybrid bermudagrass (Cynodon dactylon [L.] Pers. x C. transvaalensis Burtt-Davy) sand-based sod. Factors evaluated were visual quality and scalping. Treatments were harvested and transplanted to a sand-based research green where handle-ability, tensile strength, and infiltration were also evaluated. Results indicate aerify and topdress treatments showed higher quality pre-harvest. Control and 25 mm treatments were best in terms of harvesting, handle-ability, and sod tensile strength. Infiltration data indicated no significant differences between treatments. These outcomes along with further analysis could provide sod producers with a valuable product for use on sand-based rootzones
Towards a genome sequence of the brown spot needle blight pathogen (Mycosphaerella dearnessii) infecting longleaf pine by Benjamin Douglas Bartlett( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

A major disease damaging seedlings of Pinus palustris is caused by the fungus Mycosphaerella dearnessii. Population structure of this pathogen was studied in a population in Mississippi. High genetic diversity (0.65) was measured using microsatellite markers and coincides with the high number of vegetative compatibly groups observed. A 30 Mb genome sequence for a single isolate of M. dearnessii was assembled, representing 65% of the estimated genome size. Nearly all (93%) of the core set of genes present in eukaryotes were detected from a total of 10,996 predicted genes. A total of 853 enzymatic associations were identified along with several genes homologous to pathogenic genes in other fungal pathogens. These results provide insights into the infection process and host-pathogen interactions. Further investigating this pathosystem will lead to effective disease management strategies
Soybean yield and biomass response to supplemental nitrogen fertilization( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

<p>Soybean (<i>Glycine max</i> [L.] Merr.) has become one of the main agricultural grain crops produced in the United States. Soybean production continues to increase in high-yield environments throughout the U.S. New innovations are required to sustain gains in soybean yield potential. Field experiments were conducted at the Delta Research and Extension Center in Stoneville, MS in 2014 and 2015 to evaluate soybean aboveground biomass and grain yield response to supplemental N fertilization in a high-yielding environment on two soil textures commonly cropped to soybean in Mississippi. Greenhouse studies were conducted in 2016 at the Delta Research and Extension Center in Stoneville, MS to evaluate the influence of supplemental N fertilization on nodule formation and belowground biomass of soybean on two soil textures commonly cropped to soybean in Mississippi.</p>
Volunteer glyphosate-resistant corn (Zea mays) control and competition in glyphosate-resistant cotton (Gossypium hirsutum) by Reed Collins Storey( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Adoption of glyphosate resistant crops has resulted in increased glyphosate usage and decreased use of residual herbicides thus resulting in weed pressure shifts. Weeds that display multiple resistance to glyphosate and other herbicide modes of action have become a concern in many parts of the United States. Incorporation of multiple herbicide resistance traits into multiple cropping systems, may facilitate weed resistance to additional herbicides. Furthermore, controlling volunteer crop stands containing multiple herbicide resistance traits may be problematic in herbicide resistant crops. These volunteer crops will compete with the currently growing crop qualifying them as a weed. Therefore, this research was conducted to determine control options for: failed glyphosate resistant corn stands, and volunteer glyphosate resistant corn stands in glyphosate resistant cotton. Furthermore, research was conducted to determine what densities of glyphosate resistant corn will cause cotton yield loss and if time of removal of these densities impacts cotton yield loss
Management of glyphosate resistant Palmer amaranth in Bollgard II® XtendFlex™ cotton by Daniel Zachary Reynolds( )

1 edition published in 2014 in English and held by 1 WorldCat member library worldwide

Experiments were conducted to evaluate efficacy of dicamba, glufosinate, and glyphosate on Palmer amaranth (Amaranthus palmeri S. Wats.). Residual control was evaluated after dicamba was applied alone and in combination with fomesafen, fluometuron, acetochlor, and prometryn. Postemergence efficacy of dicamba, glufosinate, and glyphosate on different size Palmer amaranth was also evaluated. In addition, combinations of dicamba, glufosinate, and glyphosate were evaluated for efficacy on Palmer amaranth as well as spray coverage and spray droplet size as affected by various spray nozzles. Lastly, tolerance to dicamba, glufosinate, and glyphosate of cotton cultivars containing Bollgard II® XtendFlex™ technology was examined. Dicamba exhibited preemergence activity on Palmer amaranth; however, activity was heavily dependent on rainfall. Postemergence applications of dicamba increased control of Palmer amaranth. Spray nozzle selection influenced spray coverage and droplet size. Tolerance of cultivars containing Bollgard II® XtendFlex™ technology was over 90% at the end of the year regardless of herbicide
Cotton growth and developmental responses to multiple environmental stresses( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

<p>Individual and multiple stress factor effects of temperature on cotton growth and development were studied in four cotton cultivars. In Experiment I, seedling emergence rate and shoot and root morphological growth traits were measured on plants grown at five day/night temperatures from 20/12 to 40/32 °C. In Experiment II, multiple stress factors (CO2, temperature, UV-B radiation) and their interactions were evaluated during the seedling growth stage. Seed emergence and above- and below-ground growth and developmental traits were recorded in both experiments. Linear (TM-1 and PHY496W3R) and quadratic (DP1522B2XF and ST47447) functions best described seed emergence rate with an increase in temperature. Similar responses were also observed for many root traits among the cultivars. Based on vigor and principal component analysis, DP1522B2XF was identified as the most tolerant, PHY496W3R and ST4747GLB2 as moderately tolerant, and TM-1 as the least tolerant cultivar to multiple environmental stresses.</p>
Vegetable press( )

in English and held by 1 WorldCat member library worldwide

Maintaining soil physical property integrity in turfgrass management systems( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

<p>Traditional aerification programs can cause substantial damage to the playing surface resulting in prolonged recovery. A growing trend in the industry involves using aerification techniques that cause minimum surface disruption; however, despite growing interest in new and alternative aerification technology, there is a lack of information in the literature comparing new or alternative technology with traditional methods on warm season grasses. Therefore, the objective of this research was to determine the best combination of new dry-injection (DI) cultivation technology with modified traditional aerification programs to achieve minimal surface disruption without a compromise in soil physical properties. Research was conducted at the Mississippi State University golf course practice putting green and at the Mississippi State University practice football field during. Treatments compared different combinations of hollow tine (HT) aerification and DI from Jun to Aug in 2014 and 2015.</p>
Development of mathematical model for abiotic stresses and cotton fiber quality by Suresh Bajirao Lokhande( )

1 edition published in 2013 in English and held by 1 WorldCat member library worldwide

Abiotic stresses cause extensive losses to agriculture production worldwide. Cotton (Gossypium hirsutum L.) is an important fiber crop grown widely in subtropical region where temperature, water and nutrients are the common factors limiting crop production. Such losses could be more severe in the future climate as intensity and frequency of those stresses are projected to increase. The overall goal of this study was to evaluate effects of abiotic stresses on cotton reproductive performance and develop functional algorithms for fiber properties in response to different stress factors. Three experiments were conducted to evaluate the effects of temperature, water, and nitrogen in naturally-lit growth chambers. Influence of potassium nutrition was conducted in outdoor pot culture facility. In all experiments, upland cotton cultivar TM-1, a genetic standard, was used by imposing treatments at flowering. In all experiments, growth and photosynthesis measurements were recorded frequently during the treatment period. Biomass of various plant- and boll-components determined at harvest when 80% bolls were opened. Boll developmental period was tracked by daily tagging of flowers and open bolls. Bolls were grouped on the basis of onset of anthesis and lint samples were pooled together for fiber analysis. Fiber quality was assessed using High Volume Instrumentation and Advanced Fiber Information System. Total plant biomass, boll weights, and numbers significantly declined for plants grown under low and high temperature, severe water stress and nitrogen and potassium deficient conditions compared to optimum conditions for the respective stresses. Gas exchange processes were severely affected by moisture, nitrogen, and potassium deficient conditions. Time required from flower to open boll was mostly affected by growing temperature but not modified by other stresses. Fiber micronaire was most the responsive to changes in temperature, followed by strength, length and uniformity. Water limiting conditions and nitrogen defficiency severely affected strength and micronaire, whereas potassium deficiency had significant effect on fiber micronaire. This study was used to develop functional algorithms between abiotic stresses and fiber properties, once integrated into the crop simulation model. The improved crop model will be useful assist producers in optimizing planting dates, scheduling irrigation and fertigation to improve and fiber quality
Evaluation of rescue applications on glyphosate-resistant Palmer amaranth( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

<p>Options for glyphosate-resistant (GR) Palmer amaranth [<I>Amaranthus palmeri </I>(S. Wats)] control are becoming limited. Research was conducted in 2014 and 2015 to evaluate the effectiveness of rescue herbicide applications on glyphosate-resistant Palmer amaranth. Research was established to evaluate efficacy provided by new and current herbicide programs on GR Palmer amaranth that was larger than recommended at the time of herbicide application. Studies included a postemergence application of different herbicides used singly and in combination at different initial application timings; sequential postemergence application timing evaluating herbicide tank mix combinations at five different time intervals between applications; and postemergence evaluation of herbicide tank mix combinations at multiple application timings. </p>
 
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Alternative Names

controlled identityMississippi State University

Mississippi State University. Department of Plant & Soil Sciences

Mississippi State University. Dept. of Plant and Soil Sciences

Languages
English (25)