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Life Sciences Commons™

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2001

Western Kentucky University

Articles 1 - 12 of 12

Full-Text Articles in Life Sciences

Efficacy Of Sucker Control Method And Effect Of Topping Height On Axillary Bud Growth In Dark Fire-Cured Tobacco, Leslie Thompson Dec 2001

Efficacy Of Sucker Control Method And Effect Of Topping Height On Axillary Bud Growth In Dark Fire-Cured Tobacco, Leslie Thompson

Masters Theses & Specialist Projects

The removal of terminal buds (topping) and sucker control are two practices that have an impact on yield and quality of dark tobacco (Nicotiana tabacum L.). Topping breaks apical dominance and encourages the growth of axillary buds (suckers). Following topping, growth regulator chemicals known as suckercides are commonly used to prevent axillary bud growth. Research has demonstrated that topping time, height, and sucker control method influence the quality and yield of the final product. Delaying topping past a critical developmental stage has been shown to reduce leaf yield. Topping height varies among geographical regions with most dark tobacco producers topping …

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Efficacy Of Soybean Herbicides On Annual Morninglory, Dawn Oveson Dec 2001

Efficacy Of Soybean Herbicides On Annual Morninglory, Dawn Oveson

Masters Theses & Specialist Projects

Field experiments were established in 2000 and 2001 at the Agricultural Research and Education Complex in Bowling Green, Kentucky to evaluate herbicide efficacy on annual morningglory (Ipomoea spp.) species and other weeds. A randomized complete block design was utilized in each study with each treatment being replicated three times. Plots consisted of four 76 cm rows, 9.1 m in length. The two center rows of each plot were treated, with the outside rows of each plot serving as a weedy check. Crop response, weed control, and grain yield data were collected. Four different experiments were conducted. Two experiments utilized treatments …

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Kentucky Warbler (Vol. 77, No. 4), Kentucky Library Research Collections Nov 2001

Kentucky Warbler (Vol. 77, No. 4), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

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Field And Laboratory Studies On The Development And Control Of Soil Water Repellency Of Sand Root Zone Mixes, Whitney Elmore Nov 2001

Field And Laboratory Studies On The Development And Control Of Soil Water Repellency Of Sand Root Zone Mixes, Whitney Elmore

Masters Theses & Specialist Projects

Localized dry spots (LDS) associated with water repellent (i.e., hydrophobic) soils have detrimental effects on the survival, playability, and aesthetic value of creeping bentgrass (Agrostis palustris) used for golf course putting greens. The development of water-repellent soils, using molarity of ethanol water droplet tests to determine soil hydrophobicity, wetting agent evaluations, and water retention based on percent organic matter were investigated. Greenhouse, field, and laboratory studies were conducted at Western Kentucky University beginning in 2000 and ending in 2001. The greenhouse study was initiated to investigate the type of soil most capable of producing a hydrophobic condition. Using hydrophilic sand …

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Ua66/5 Department Of Agriculture Newsletter, Wku Agriculture Oct 2001

Ua66/5 Department Of Agriculture Newsletter, Wku Agriculture

WKU Archives Records

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.

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Kentucky Warbler (Vol. 77, No. 3), Kentucky Library Research Collections Aug 2001

Kentucky Warbler (Vol. 77, No. 3), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

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A Comparative Study Of Composted Organic Wastes And Ibdu Fertilizer In Nitrogen Utilization By Bentgrass Cultivars, David Mathews Aug 2001

A Comparative Study Of Composted Organic Wastes And Ibdu Fertilizer In Nitrogen Utilization By Bentgrass Cultivars, David Mathews

Masters Theses & Specialist Projects

This research project that was conducted to provide evidence that composted organic waste materials do provide comparable nitrogen absorption efficiency in relation to an organic slow release fertilizer. Western's compost facility supplied the two different organic wastes, which had been composted for 1 year. The materials used were composted urban leaf litter, sawdust/manure mixture at a 50/50 ratio by volume and an organic fertilizer IBDU. These materials were applied to one cultivars of (Agrostis capillaries) and three cultivars of (A. palustris) at the rate of .S^/IOOO**2 in the months of April, June, and September. The plots were sampled one month …

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Vo2max Comparison Between Seated And Standing Ergometry, Andrew Bosak Aug 2001

Vo2max Comparison Between Seated And Standing Ergometry, Andrew Bosak

Masters Theses & Specialist Projects

Maximum oxygen consumption (VC^max) represents the highest rate at which oxygen can be consumed and utilized to produce energy sustaining aerobic activity. V02max is regarded as the gold standard for assessing aerobic fitness and is essential for prescribing appropriate exercise intensities. Therefore, accurate determination of VC>2max is vital. Usually, VC>2max is obtained when an individual reaches volitional exhaustion during a Graded Exercise Test (GXT). Previous studies show V02max during standing cycle ergometry protocols and treadmill protocols to be similar, while seated cycle ergometry V02tnax values are lower. Conversely, other studies show seated and standing cycle ergometry V02max to …

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Molecular Characterization Of Citrus Tristeza Virus Isolates In Commercial Citrus Grown In Belize, Harry Sabal Aug 2001

Molecular Characterization Of Citrus Tristeza Virus Isolates In Commercial Citrus Grown In Belize, Harry Sabal

Masters Theses & Specialist Projects

Isolates of Citrus Tristeza Virus (CTV) in Belize may be causing inverse stem pitting, stunting, and slow decline on sweet and sour orange rootstock combination on field trees. One isolate on Cleopatra mandarin rootstock expressed no field symptoms but may be a possible source of a detrimental isolate to more susceptible citrus rootstock combinations. Field plants and field source inoculated indicator plants were used in this study. The first objective was to determine whether field trees of sweet Valencia orange trees that expressed symptoms of CTV would test positive to a polyclonal (mild and severe symptoms) and a monoclonal (severe …

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Biodiversity: The World Of Life, Charles H. Smith May 2001

Biodiversity: The World Of Life, Charles H. Smith

DLPS Faculty Publications

No abstract provided.

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Kentucky Warbler (Vol. 77, No. 2), Kentucky Library Research Collections May 2001

Kentucky Warbler (Vol. 77, No. 2), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

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Kentucky Warbler (Vol. 77, No. 1), Kentucky Library Research Collections Feb 2001

Kentucky Warbler (Vol. 77, No. 1), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

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