This Is AuburnElectronic Theses and Dissertations

Browsing by Author "Lawrence, Katheryn"

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Assessing Soil Microbial Populations and Activity Following the Use of Microbial Inoculants: Effects on Disease Suppressiveness and Soil Health 

Cadena, Marleny (2006-12-15)
In recent years, assessing use of microbial inoculants for promotion of plant growth has increased. Optimizing application frequency of PGPR is critical to achieving the maximum benefit from this technology. The study ...

Biological Control Studies on the Reniform nematode (Rotylenchulus reniformis) on Cotton in Alabama. 

Castillo, Juan D. (2009-11-11)
Cotton production in the Southeastern United States is limited by the reniform nematode (Rotylenchulus reniformis) causing an estimated loss of $98,000.000 per year. Currently, management is based on crop rotation and use ...

Dimensional Movement of Rotylenchulus reniformis Through a Silt Loam: Observations of Movement and Population Growth from an Initial Point of Inoculation 

Moore, Scott (2009-11-20)
Rotylenchulus reniformis was evaluated for total distance moved, rate of movement, and population growth upon initial introduction into a cotton (Gossypium hirsutum) field under irrigated and non-irrigated conditions. The ...

The Effect of Cover Crops on Suppression of Nematodes on Peanuts and Cotton in Alabama 

Marla, Sandeep (2008-12-15)
Cover crops were evaluated in the greenhouse and in field locations to determine their host status and nematode suppressive effect on root-knot nematodes, Meloidogyne incognita and M. arenaria and the reniform nematode, ...

Evaluation of winter cover crops and biological control products to manage Meloidogyne incognita and insect pest damage in organic sweetpotatoes 

Schloemer, Claire (2024-04-11)
There is a need to develop effective organic integrated pest management practices for sweetpotatoes. Our findings indicated that the combination of BotaniGard 22WP, Triple Threat Entomopathogenic Nematodes, and Majestene ...

Exploring the Relation Between Plant Phosphorus Nutrition and Growth Promotion by Bacillus subtilis/amyloliquefaciens Strains 

Ramirez, Camilo A. (2010-08-02)
The use of plant growth-promoting rhizobacteria (PGPR) as biofertilizers is of increasing interest due to economic and environmental issues. Phosphorus (P) is one of the most limiting plant nutrients because of its reduced ...

Harnessing the Capacity of PGPR With or Without AMF for Improved Plant Use Efficiency of Chemical Fertilizers and Organic Manure 

Adesemoye, Anthony (2009-05-15)
The basis for the application of fertilizers (manure and chemical) is to make up for soil nutrient deficiencies and maintain soil fertility towards improved crop yield. Fertilizers could exacerbate environmental problems ...

Identification of Plant-Parasitic Nematodes Using FAME Analysis 

Sekora, Nicholas (2009-07-22)
For several years, chromatographic analysis of fatty acid methyl esters (FAME) has been used to identify bacteria more quickly than traditional methods. The objective of this study was to determine the applicability of ...

Identification of Pseudomonas aeruginosa Mutants Unable to Convert Ricinoleic Acid into 7,10,12-Trihydroxy-8(e)-Octadecenoic Acid (TOD) and a Survey of the Biological Activity Of TOD 

Hatchett, Taylor (2009-04-15)
Rice blast, caused by Magnaporthe grisea, is a devastating problem in all rice producing areas of the world and is extremely difficult to prevent and/or to control. Therefore, it is critical to develop new methods to ...

Management of Sheath Blight and Enhancement of Growth and Yield of Rice with Plant Growth-Promoting Rhizobacteria 

Kotamraju, Vijay Krishna Kumar (2010-11-15)
Sheath blight (ShB) of rice caused by Rhizoctonia solani, causes significant yield losses worldwide. Strong sources of genetic resistance are not available for ShB, and the disease is currently managed through use of ...

Pathogenicity and Virulence of Root-Inhabiting Ophiostomatoid Fungi on Pinus Species of the Southeastern United States 

Matusick, George, III (2010-04-29)
Root- inhabiting ophiostomatoid fungi cause root disease in conifer hosts around the world. A group of ophiostomatoid fungi in the genus Grosmannia Goid. and their Leptographium Lagerb. & Melin anamorphs have been recently ...