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 “"Split-Plot Design"”.
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Second-order sub-array Cartesian product split-plot design
… (1926) laid down the fundamental principles of design of experiments: factorization, replication, randomization, and local control of error. In industrial experiments, however, departure from these principles is commonplace. Many industrial experiments involve situations in which complete …
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Pengaruh pemetikanan kuncup bunga terhadap pertumbuhan dan produktivitas pada beberapa aksesi tanaman kapas (Gosypium hirsutum L.)
… disusun dalam Rancangan Petak Terbagi (Split-Plot Design) yang terdiri dari 10 petak utama dan 4 anak petak, dengan 3 kali ulangan. Petak utama adalah 10 aksesi kapas dan anak petak adalah 4 (pemetikan 40, 60, 80 hst. dan kontrol) waktu pemetikan kuncup bunga. Hasil analisis varian …
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Comportamento do algodoeiro herbáceo BRS Araripe em diferentes lâminas de irrigação no Cariri Cearense
… from July to December 2010. The experimental plot was a randomized block delineament with four replications and five irrigation treatments, arranged in a split plot design, equivalent to total water applied of 894.68 (L1), 711.81 (L2), 514.21 (L3); 418 , 93 (L4) and 260.93 (L5) mm, calculated …
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Effect of Nitrogen Rates, Planting Dates, and Irrigation Regimes on Potato Production in the Eastern Shore of Virginia
… pests. This study was established in a split-plot design with four replications, with planting dates on the main plot and N rates and time of application on the sub-plot. Late March planting resulted in the highest total tuber yield, while early planting produced significantly larger …
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Response surface designs and analysis for bi-randomization error structures
… error control format of which the split plot design is a special case. A bi-randomization scheme allows for certain factor levels to be applied at random to large experimental units with the remaining factor levels randomly applied to nested smaller units. For example, in the dual …
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The effect of seed tuber size and spacing on the yield , dry matter content and daughter tuber size in three potato (Solanum Tuberosum L.) Varieties
… of 75cm and 90cm. Treatment were arranged in a split-split plot design with varieties as main plots, spacing as sub plots and seed tuber sizes as sub-sub- plots. The treatments were replicated three times. Results showed that seed size had no significant influence on the total tuber yield or on …
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The effect of seed tuber size and spacing on the yield , dry matter content and daughter tuber size in three potato (Solanum Tuberosum L.) Varieties
… of 75cm and 90cm. Treatment were arranged in a split-split plot design with varieties as main plots, spacing as sub plots and seed tuber sizes as sub-sub- plots. The treatments were replicated three times. Results showed that seed size had no significant influence on the total tuber yield or on …
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Screening of indigenous forage legumes as potential fodder crops and protein source for livestock in Central Namibia
… and Vigna unguiculata) were evaluated in a split-plot design with Single superphosphate at varying levels (0, 60, 80 and 100 kg P/ha). Fertilizer application up to 80 kg P/ha increased biomass and 100-seed weight; responses for O. burchellii were however inconsistent. The legumes differed (P …
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The Relative Roles of Herbivore- and Pollinator-mediated Selection on the Evolution of Floral Display in the Invasive Plant, Lythrum salicaria
… selection through this pathway. Using a split-plot design, I measured pollen limitation and reproductive output in experimentally manipulated plants in the presence and absence of simulated herbivore damage in order to quantify the effects of damage and pollination on natural selection …
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Interactive Effects of Ferulic Acid and Irradiance on Plant Growth and Photosynthetic Rate
… to a known allelochemical stress. Using a split plot design, the effects of irradiance and ferulic acid (FA) on growth, biomass allocation and plant photosynthetic capacity were monitored in summer greenhouse experiments. The experimental design consisted of two levels of irradiance …
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Response Surface Design and Analysis in the Presence of Restricted Randomization
… or costly-to-change factors. Employing a split-plot design structure minimizes the number of required experimental settings for the hard-to-change factors. In this research, we propose classes of equivalent estimation second-order response surface split-plot designs for which the ordinary …
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Vines of different capacity and water status alter the sensory perception of Cabernet Sauvignon wines
… irrigation. Treatments were arranged in a strip-split-split plot design before the introduction of the irrigation treatment resulted in incomplete replication in each block. Treatment levels were under-trellis cover crop (CC) compared to under-trellis herbicide (Herb); root restriction bags (RBG) …
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The effects of seed tuber size and spacing on the yield,dry matter content and daughter tuber size in three potato(solanum tuberosum L.)Varieties
… 75 cm and 90 cm. Treatments were arranged in a split-split plot design with varieties as main plots, spacing as sub plots and seed tuber sizes as sub-sub-plots. The treatments were replicated three times. Results showed that seed size had no significant influence on the total tuber yield or on …
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Testing Reintroduction Potential of Abronia macrocarpa (Nyctaginaceae)
… as experimental reintroduction properties. A split-plot design was used to test the effects of timing of planting seed in the field (spring planted seed vs. fall planted seed). The mean percent germination of spring planted seed (4.2 to 16.67%) was higher than fall planted seed (0 to 0.83%) at …
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Evaluation of Soil Fertility and Performance of Maize(Zea Mays L.)in Small Holders Maize Farms in Namtumbo District, Ruvuma Region.
… (v) N80 P40 K80 +Zn10 and (vi) N120 P40K80 Zn10. Split plot design was used where the main plots factor was maize varieties and sub plots factor was nutrient combinations. Major findings of this experiment were that the major soil fertility constrains for maize production were N, P, K and Zn. The …
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Comparative effects of conservation tillage systems on selected soil properties and yields of groundnut(arachis hypogaea)
… The tillage systems were arranged in a split plot design. All parameters except soil chemical properties, nodule weight and biological nitrogen fixation were affected by tillage, with CV yielding better results. The lowest bulk density was 1.29 g/cm3 under CV, while the highest bulk …
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Comparative effects of conservation tillage systems on selected soil properties and yields of groundnut(arachis hypogaea)
… The tillage systems were arranged in a split plot design. All parameters except soil chemical properties, nodule weight and biological nitrogen fixation were affected by tillage, with CV yielding better results. The lowest bulk density was 1.29 g/cm3 under CV, while the highest bulk …
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Adult Client Outcomes: Differences Between Counselors with Education in Child Centered Play Therapy Versus Counselors Without Education in Child-Centered Play Therapy
… This study utilized a 2X2 repeated measure ANOVA design to analyze the impact of counselors who were educated in child-centered play therapy who saw adult clients, versus their non-play therapy counterparts who saw adult clients. Before treatment pre-test and after treatment post-test …
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The Effects of Automation Transparency and Reliability on Task Shedding and Operator Trust
… is common in many domains, understanding how to design it to optimize human-automation system performance is vital. Well-calibrated trust ensures good performance when using imperfect automation. Two factors that may jointly affect trust calibration are automation transparency and perceived …
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Agronomic and phenotypic responses to 75 years of recurrent selection for yield in the Iowa Stiff Stalk synthetic maize population
… twice at each location and arranged in a split plot design. Increasing density in advanced populations led to increased yield unlike the yield decrease seen in less advanced populations at high density, indicating an adaptation to high plant density. Increasing density in advanced …
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