Browsing by Subject "Major range science"
Now showing items 1-20 of 46
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(Texas A&M University. Libraries, 1985)Anatomical, morphological and cytological studies were made of the Digitaria leucites complex. Materials studied were herbarium specimens from various herbaria and the additional collection of D. runyonii Hitchc. and D. ...
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(Texas A&M University. Libraries, 1979)A biosystematics treatment was made of the grass genus Eriochloa in North America. This revision recognized the following 19 taxa: E. acuminate var acuminate, E. acuminate var. minor, E. aristata var. aristata, E. aristata ...
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(Texas A&M University. Libraries, 1985)A biosystematic treatment was made of the New World genus Erioneuron. Materials for morphological, electrophoretic, anatomical, and cytological studies were collected from naturally occurring populations, and from herbarium ...
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(Texas A&M University. Libraries, 1985)A biosystematic treatment was made of the Muhlenbergia repens complex. Materials for morphological, anatomical, embryological, and cytological studies were collected from throughout the geographic region of this complex. ...
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(Texas A&M University. Libraries, 1989)Population samples of Schizachyrium scoparium, collected from Texas (vars. divergens, frequens, littorals, and virile) and New Mexico (var. neomexicanum), and herbarium specimens (including type specimens of Andropogon ...
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(Texas A&M University. Libraries, 1977)A study was initiated in August 1975 to illuminate the dietary interrelationships among four kinds of small ruminants of the Edwards Plateau of Texas. Interrelationships were based on the botanical and nutritive composition ...
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(Texas A&M University. Libraries, 1990)The objective of this study was to calibrate and validate the Texas A&M forage dynamics, diet selection, and sheep production models for the Edwards Plateau region of Texas. Field data from three sites, one near Brady and ...
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(Texas A&M University. Libraries, 1985)Five paddocks of a heavily stocked (3.3 AUM/ha) rotational grazing (RG) system at two stocking densities, two paddocks simulated 14 (RG-14) and three paddocks simulated 42 (RG-42) paddocks per herd, and a moderately stocked ...
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(Texas A&M University. Libraries, 1986)Two separate investigations were conducted to study the influence of intraspecific competition and herbivory on plant and tiller demography of the bunchgrass Schizachyrium scoparium. The investigations were conducted over ...
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(Texas A&M University. Libraries, 1985)A model was developed in an attempt to predict the selection ratio of little bluestem (Schizachyrium scoparium) and brownseed paspalum (Paspalum plicatulum) in a simulated short-duration grazing system stocked at four ...
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(Texas A&M University. Libraries, 1969)Phenological and ecological characteristics of perennial broom-weed (Xanthocephalum sarothrae (Pursh) Shinners and X. microcephalum (DC.) Shinners), species toxic to livestock, were investigated at six locations in western ...
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(Texas A&M University. Libraries, 1979)Gulf cordgrass occupied intermediate elevations between hydric species at lower elevations and more mesic species at high elevations on the Welder Wildlife Refuge. Botanical composition shifted apparently because of season ...
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(Texas A&M University. Libraries, 1969)Phosphofructokinase (PFK) activity was found in all cowpea leaf tissue preparations. Phosphofructokinase activity in non-treated plant tissue preparations harvested during the light period was competitively inhibited. ...
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(Texas A&M University. Libraries, 1988)Research was conducted on the effects of rotational grazing (RG) compared to continuous grazing (OS) on the behavior of cattle grazing on rangelands. Different livestock densities in the RG treatments were created by varying ...
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(Texas A&M University. Libraries, 1977)Adaptation of species for shoreline stabilization; use of wave-stilling devices; effects of fertilizers, water salinity, tidal fluctuations, and selected soil characteristics on plant establishment and growth were studied ...
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(Texas A&M University. Libraries, 1978)Landsat multispectral scanner imagery and digital data were evaluated for use in classifying and characterizing natural vegetation in northcentral Texas and southcentral Oklahoma. Landsat imagery was used to map and classify ...
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(Texas A&M University. Libraries, 1987)A series of experiments were conducted to quantify the extent to which dissemination and establishment of mesquite is enhanced by activities of domestic livestock. In the Rio Grande Plains of south Texas, dispersal of ...
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(Texas A&M University. Libraries, 1972)Sideoats grama, a native grass species, was used to test effects of saliva deposited on a plant during grazing. Thiamine, which is found in animal saliva, was also tested to determine effects on plant growth. A comparison ...
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(Texas A&M University. Libraries, 1980)A study was intiated in May 1977 to examine the interaction of brush management and season on herbaceous production and composition,, chemical and botanical composition of cattle diets, and performance of lightweight steers ...
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(Texas A&M University. Libraries, 1985)A four-part study was conducted at the Texas Agricultural Experiment Station, 56 km southwest of Sonora, Texas on the Edwards Plateau. The objective of the study was to provide a greater understanding of the hydrologic ...