Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 79 for “"Fall and spring"”.
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Fall and spring broccoli yields and weed control under no-till and conventional tillage with overseeded legume living mulches
… var. <i>italica</i> Plenck) at two sites in fall of 1993 and at two sites in the spring of 1994 on a Hayter loam in southwestern Virginia. Objectives were to determine the tillage main-plot (CT = conventional tillage, and NT = no-tillage) and weed-control subplot (C = no overseeding or …
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Determination of Optimum Fall and Spring Nitrogen Fertilizer Rate for Maximizing Grain Yield of Soft Red Winter Wheat Sown at Variable Planting Dates
… the growing environment including temperature and moisture, ultimately affecting fertilizer efficiency and grain yield (GY). In Arkansas, high precipitation in the fall often forces farmers to delay planting and current Arkansas recommendations include the application of fall N when soft red …
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The Effects of Water Quality Policies Under Alternative Representations of Farmer Behavior
… this analysis suggest that nitrate reduction standards will not necessarily be achieved across producer types with policies designed for profit-maximizing producers. Thus, producers with other motives must be considered in the formulation of pollution policies. Further, those policies which lead …
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An Analysis of the Impact of Selected Structures of the Virginia Preschool Initiative on PALS Pre-K Program Summary Scores for At-Risk Preschool Students in Virginia
… among young children upon formal school entry and to reduce or eliminate those risk factors that lead to early academic failure." (Virginia Department of Education, 2005) The independent variables are the specific curriculum models used by the school division, length of program day, teacher …
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Barley Yellow Dwarf of Winter Wheat: Effects on Germplasm, and Inheritance, Combining Ability, and Reciprocal Effect for Tolerance to the Barley Yellow Dwarf Virus
… virus (BYDV) on winter wheat germplasm showed fall infection to be more devastating than spring infection, reducing grain yield an average of 61% vs. 38% for spring infection. BYDV also decreased winter survival, plant height, number of heads, and kernel weight. Among 1700 winter wheat entries …
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The association between circulating vitamin d levels and body composition in collegiate female athletes
… vitamin D intake, sunlight exposure, BMI, and body fat percentage in both indoor and outdoor female collegiate athletes during fall and spring seasons. Healthy collegiate female athletes, between the ages of 18-22, had BMI calculated from anthropometric measurements, body fat percentage …
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Program Evaluation of Behavior Management Training for Preschool Teachers: Child Outcomes
… in a blended Head Start/daycare setting and evaluates the outcomes of the training on children’s cognitive/preliteracy skills, selfregulation, and social competence in the fall and spring following teacher training. The intervention group (Western Kentucky University Child Care Center) …
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Chronic effects of single intra-peritoneal injection of endosulfan on rainbow trout (Oncorhynchus mykiss) and field observations of caged rainbow in Oshawa Creek
… has been shown to be highly toxic to fish and there is some evidence to support that it may act as an endocrine disrupting chemical. Juvenile rainbow trout (Oncorhynchus mykiss) were caged at 4 sites in Oshawa Creek during the fall and spring of 2008 and 2009 while another group was …
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Pest Management Studies of Early Season and Stalk-Boring Insects on Corn in Virginia
Separate field studies were started in fall 2005, which continued through fall 2007, to investigate the effect of different levels of European corn borer tunneling on yield in corn grown for grain and to predict spring infestation levels of early season soil insects, specifically white grubs …
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Effects of shade on the cultivated strawberry (Fragaria X anassa Duch.)
Greenhouse and field studies were conducted to determine the effects of shade on photosynthetic, growth and yield responses of "Redchief" strawberries. Plants were exposed to 0 , 30 , 47 and 63 percent shade in the greenhouse. Net photosynthesis (Pn) as measured under the shade treatments …
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Evaluation of Genomic Prediction and the Agronomic Performance of Facultative Barley
… exhibits either a winter growth habit or a spring growth habit. Some cultivars display a facultative growth habit, allowing them to be cultivated as either winter or spring crops. This study evaluated 1,128 elite barley cultivars and breeding lines under fall and spring sowing to determine …
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The Relationship Between Readiness Test Results Obtained by Children in an Optional Kindergarten and a Regular Kindergarten Program as Measured by the Metropolitan Readiness Test
… in the district's optional kindergarten program and thirty-two children randomly selected from the regular kindergarten population of the district's six elementary schools. The research design consisted of a fall and spring readiness testing of the total optional and regular kindergarten …
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Morphological and physiological growth responses of Kentucky bluegrass to foliar applications of iron, a cytokinin, and growth regulator- like chemicals
… studies were conducted to examine morphological and physiological responses of Kentucky bluegrass (Poa prazensis L.) following foliar applications of chelated iron phosphate citrate (Fe), the synthetic cytokinin benzyladenine (BA), the systemic triazole fungicides propiconazole and triadimefon, …
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Making a Difference: Measuring the Effectiveness of Mississippi Teacher Corps Teachers as Compared to Non-Mississippi Teacher Corps Teachers
… of research was a quantitative analysis of standardized test scores from the "Rural County School District" for school year 2009–2010. The analysis shothat there is no significant difference in mean test scores of students who are taught by MTC teachers as compared to non-MTC teachers but …
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Time And Rate Of Nitrogen Fertilization Influence Maize Nitrogen Use Efficiency And Soil Enzyme Activity
… conducted from 2014 to 2016 comparing single (fall and spring) and split applications of differing nitrogen (N) rates for maize (Zea mays L.) on an irrigated Hubbard-Mosford loamy sand complex at Becker, a non-irrigated Normania loam soil at Lamberton, and a non-irrigated Nicollet clay loam …
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An investigation into stuttering development: a longitudinal approach
… to examine the relation between daily emotions and stuttering. A longitudinal design was used to evaluate changes in the relation between emotions and stuttering over the fall and spring semesters of the 2015-2016 school year. The study participant consisted of child who was three years old when …
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Growth, reproductive phenology, and population structure in Syntrichia caninervis
… of the arid Southwest. It exhibits a phenology and growth rate similar to the related species Tortula inermis. Mean growth rate was 0.29 mm +/- 0.04 (mean and S.D.). Expressing stems had a significantly greater growth rate than non-expressing stems, but no difference was detectable between males …
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Longitudinal relationships between children's popularity and social behaviors: the effects of friendship network structures and teacher's knowledge of classroom peer ecologies
… classroom friendship network structures (density and centralization) and teacher knowledge of children’s peer ecology (peer groups, aggression, and peer status) in their classrooms on longitudinal relationships between social behaviors and popularity. Longitudinal multilevel analyses with two-time …
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Program Evaluation of Behavior Management Training for Preschool Teachers: Teacher Outcomes
… within their classrooms with limited support and resources. Additionally, there is not a lot of research that has been completed looking at teacher attitudes or how children’s behavior impacts them personally. The current study looks at teacher outcomes based upon an evidence-based teacher …
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Stability of Universal Screening Over Time: An Examination of the Student Risk Screening Scale
… students that are at risk for social-emotional and behavior (SEB) problems and provide information to schools to support early intervention for at risk children. Current recommendations for practice indicate screening should be conducted at three time points during the school year. Previous …
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