Global ETD Search

131	Development and morphology of the beaded rootlets, mycorrhizae, and associated root fan structures of red maple (Acer rubrum L.) / Medve, Richard John January 1968 (has links) No description available. Biology Roots Maple Red maple
132	Root herbivory in grasslands and savannas: the potential role of June beetle (Phyllophaga spp.; Scarabaeidae) larvae in central Texas plant community structure Brumbaugh, Michael Shawn 28 August 2008 (has links) Not available / text Phyllophaga--Larvae--Ecology--Texas Grasses--Texas--Roots Woody plants--Texas--Roots Forbs--Texas--Roots Grasslands--Texas
133	SOIL AERATION, HORMONAL RELATIONSHIPS AND GROWTH OF TOMATO (LYCOPERSICON ESCULENTUM MILL.) UNDER DIFFERENT ENVIRONMENTS. ALMASOUM, AHMED ABDUL RAHMAN. January 1986 (has links) Tomato plants (Lycopersicon esculentum Mill.) were grown in a greenhouse in Arizona in order to determine the effect of aeration, flooding, and exogenously applied benzyladenine (BA) on growth and cytokinin production at different growth stages. The structural changes in roots at different soil environments were also studied. Fresh and dry weight of roots and shoots and root exudate were collected at various stages of growth. Results showed that aerated plants significantly outperformed flooded and BA treated plants due to increased root and shoot output. The level of cytokinin in root exudate was higher during the early phase of vegetative growth. At the time of bud formation and anthesis, the level of cytokinin declined. In the vegetative stage, the competition between removed sinks and the rest of the shoot was reduced and, as a result, more cytokinin was believed to come from the roots to the shoots. Besides, additional carbohydrates were available to the roots. Determination of cytokinins in aerated plants showed a significant increase. However, in flooded plants, a smaller amount of cytokinin was detected. This is believed to be due to death of root apices, a major site for cytokinin production. Under experimental conditions, the application of BA to foliage of flooded plants had an adverse effect on growth of roots and shoot of tomato plants. However, a slight increase in cytokinin level was detected. Histological studies showed an increase in air-spaces (aerenchyma) in roots of flooded plants. This acclimation improved survival in inadequately aerated plants that were waterlogged. Roots (Botany) Soil aeration. Tomatoes -- Growth.
134	The diffusion of hydrogen ion in soil and an investigation of some physico-chemical changes occurring in the region of plant roots in soil Farr, E. January 1969 (has links) No description available. 580
135	Tissue culture of root cells Grant, M. E. January 1966 (has links) No description available. 580 Plant tissue culture ; Roots (Botany)
136	Uptake of nutrients by plant roots growing in the soil Drew, M. C. January 1966 (has links) No description available. 580
137	Changes in the ionic environment around plant roots Wray, Frederick John January 1970 (has links) No description available. 580
138	A comparative investigation of the root number and canal anatomy of permanent teeth in a Southern Chinese population Walker, Richard Thomas. January 1987 (has links) published_or_final_version / Dentistry / Doctoral / Doctor of Philosophy Teeth - Anatomy. Teeth - Roots. Dental pulp cavity.
139	Understanding complex numbers and identifying complex roots graphically Whitfield, Lakesha Rochelle 13 September 2010 (has links) This master’s report seeks to increase knowledge of complex numbers and how to identify complex roots graphically. The reader will obtain a greater understanding of the history of complex numbers, the definition of a complex number and a few of the field properties of complex numbers. Readers will also be enlightened on how to visibly detect complex roots of polynomials of the second, third and fourth degree. / text Complex numbers Roots Graphical solutions Polynomials
140	The distribution of roots of certain polynomial Rodríguez, Miguel Antonio, 1972- 07 October 2010 (has links) Abstract not available. / text Polynomials Ehrhart Cross-polytopes Roots Laplace's method

Search results