WorldCat Identities

Mississippi State University Department of Plant and Soil Sciences

Works: 20 works in 21 publications in 1 language and 26 library holdings
Genres: Academic theses  Periodicals 
Classifications: S79,
Publication Timeline
Most widely held works by Mississippi State University
Fruit & nut recommendations for Mississippi by Freddie Rasberry( Book )

2 editions published between 2006 and 2015 in English and held by 4 WorldCat member libraries worldwide

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 the watchdog weather station to reduce drift from MDOT spray trucks by John D Byrd( Book )

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

Wind speed data collected with the Spectrum Watchdog Sprayer Station were compared to data recorded with a Young 05103-5 anemometer at the Rodney R. Foil Plant Science Research Center on the Mississippi Sate University campus June and July, 2014 and 2015. The manufacturer’s specifications advertise the Sprayer Station wind speed accuracy for wind speeds less than 12 mph is ±1.1 mph and wind speeds greater thatn 12 mph is ±2.3 mph. While the wind speed data recorded by the Watchdog Sprayer Station followed the same trend as the data recorded with the Young anemometer, variations in wind speed both above and below that recorded by the Young anemometer indicate the Watchdog precision is not sufficiently reliable of the actual wind speed. Wind speed data recorded by the Young anemometer and Watchdog Sprayer Stations were poorly correlated at 0.61 and 0.49 for collection periods in 2014 and 2015, respectively. These data indicate the Watchdog Spryer Station does not measure wind speed with sufficient reliability to provide a MDOT spray truck driver, a true indication when wind speeds are above or below safe parameters for spray applications to avoid drift
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
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
Dispersal and management of invasive aquatic plants in Mississippi waterways by Amanda Fernandez Watson( )

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

To understand the flow of water as a factor that influences aquatic vegetation communities and aquatic plant dispersal, custom-made Global Positioning System (GPS) drones were used to monitor the movement of water in Aliceville Lake, Columbus Lake, and Ross Barnett Reservoir, MS. In each reservoir, the drones drifted in the wind-generated surface current. Analysis of wind speeds suggests that a certain wind speed may be necessary to overcome gradient flow. Wind direction and wind speed should be incorporated in future spatial simulation models for aquatic plant dispersal and distribution. An herbicide evaluation on Cuban bulrush (Oxycaryum cubenese) was conducted to determine what herbicides would effectively control the invasive species. Applications made pre-flowering were more successful than post-flowering applications for all herbicides tested with glyphosate, 2,4-D, triclopyr, diquat, imazamox, and imazapyr resulting in 100% mean biomass reduction. For post-flowering applications, glyphosate, triclopyr, and diquat are recommended
SOYDATA : GLYCIM validation data sets( Book )

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

Postemergence and residual control of glyphosate-resistant palmer amaranth (Amaranthus palmeri) with dicamba by Clifford Blake Edwards( )

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

On-farm research was conducted in 2011 and 2012 to determine the postemergence and residual control by dicamba of glyphosate-resistant (GR) Palmer amaranth (Amaranthus palmeri S. Wats.). Preemergence dicamba at 0, 0.28, 0.56, and 1.1 kg ae ha⁻¹ and 0.07 kg ae ha⁻¹ flumioxazin was applied at 30, 15 and 0 days prior to planting. Postemergence dicamba at 0.28, 0.56, and 1.1 kg ae ha⁻¹ with and without 0.84 kg ae ha⁻¹ glyphosate was applied to 5, 10 and 15 cm Palmer amaranth. In addition, a greenhouse experiment was conducted in 2012 to evaluate and confirm the optimum rate for control of Palmer amaranth with a new formulation of dicamba (BAS 18322H). In the greenhouse, dicamba at 0.14, 0.28, 0.56, 1.1, and 2.2 kg ae ha⁻¹ was applied to 5, 10, and 15 cm Palmer amaranth
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
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
Vegetable press( )

in English and held by 1 WorldCat member library worldwide

Agronomy notes( )

in English and held by 1 WorldCat member library worldwide

Foundation plantings by Henry J Smith( Book )

1 edition published in 1999 in English and held by 1 WorldCat member library worldwide

Cattle grazing preferences, animal performance, and harvest management effects among diploid and tetraploid cultivars of annual ryegrass by Juan Kevin Quamina Solomon( )

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

Incremental gains in productivity from new forages are likely to be very small in developed countries like the USA where forage research is highly advanced, thus animals must be used in determining their value. Three experiments were conducted. Experiment I evaluated grazing preference of cattle and its relationship with morphological and chemical characteristics. Treatments were two diploid cultivars 'Marshall' and 'Gulf' and two tetraploid cultivars 'Maximus' and 'Nelson' arranged in a 4 x 4 Latin square design experiment. Animal preference was based on herbage disappearance, the Chesson-Manly index, and animal grazing time. Both herbage disappearance (1400 vs. 890 kg ha⁻¹) and Chesson-Manly index (8.1 vs. 5.8%) were greater for tetraploid than diploid cultivars. Experiment II quantified forage and animal response of a tetraploid (Maximus) vs. a diploid (Marshall) annual ryegrass. Three stocking rates (SR), 3.75, 5, or 7.5 animals ha⁻¹, were imposed on the two cultivars in a 3 x 2 factorial of a CRD experiment with two replications. Angus cross-bred heifers (initial BW = 240 kg) were used. There was no cultivar effect or any interactions on ADG or herbage mass (HM). Both ADG (1.22 kg d⁻¹ at low SR to 0.98 kg d⁻¹ at high SR) and HM (3.8 Mg ha⁻¹ at low SR to 2.5 Mg ha⁻¹ at high SR) had a linear response to SR. Experiment III quantified forage production, morphological characteristics, and nutritive value between a tetraploid (Maximus) vs. a diploid (Marshall) annual ryegrass cultivar harvested at three different leaf stages 2-, 3-, and 4-leaves tiller⁻¹ and two stubble heights 5 and 10 cm. Treatments were arranged in a 3 x 2 x 2 factorial of a RCBD experiment with four replications. In 2011, there was a linear increase in forage harvested from 2-leaf (7.3 Mg DM ha⁻¹) to 4-leaf stage (8.8 Mg DM ha⁻¹) and in 2012 the response was quadratic with the highest forage harvested at 2- and 4-leaf stages (7.6 Mg DM ha⁻¹). These results indicate that cultivars of annual ryegrass varied in their responses to grazing preference, grazing management, and defoliation management based on leaf stage
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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

English (21)