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Showing 1 to 11 of 11 for “"SELECTION RESPONSE"”.
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Selection Response, Genetic Variation, and Combining Ability of High Oil Maize Genotypes
… in testcrosses should be achieved by recurrent selection using inbred LH185 as the tester without a great reduction in both oil and protein concentrations.
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Genetic Variability, Correlations and Selection Response for Kernel Traits in Two Modified Endosperm Opaque-2 Maize Populations
… to estimate genetic variation, correlations and responses to S(,1) family selection for kernel traits in two modified endosperm o(,2) maize populations (D.O. mod. o(,2) and El. S.C. mod. o(,2)). In 1982, 120 S(,1) families were evaluated for percent modification, kernel density, 100 kernel …
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Incorporation of Exotic Germplasm Into Adapted Maize Synthetics to Improve Grain Yield and Multiple Leaf Blight Resistance (Selection Response, Zea Mays, Quantitative Genetics, Corn)
… resistance. One cycle of divergent S(,1) family selection for each trait was conducted in the adapted, BC(,1)F(,2), F(,2), and exotic populations for three sets of crosses. Several suggested estimators of favorable alleles (i.e. Dudley's statistics (1p(,1)u, 1p(,1)u(,adj)), minimum upper-bound …
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Divergent Phenotypic Recurrent Selection for Nitrate Reductase Activity and Correlated Responses in Maize
Divergent phenotype recurrent selection for post anthesis nitrate reductase activity (NRA) in maize was conducted through three cycles. The original material (C(,0)) was the maize (Zea mays L.) synthetic, Super Stiff Stalk Synthetic. The primary objectives were to determine: the selection response …
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ΣΥΜΒΟΛΗ ΣΤΗΝ ΚΑΤΑΡΤΙΣΗ ΤΟΥ ΒΕΛΤΙΣΤΟΥ ΣΧΕΔΙΟΥ ΕΠΙΛΟΓΗΣ ΤΩΝ ΧΟΙΡΩΝ ΣΤΗΝ ΕΛΛΑΔΑ
… THE TOTAL BREEDING VALUE IS BASED ON RESTRICTED SELECTION INDEXES FOR MEAT QUALITY. THE CRITERIONS OF EFFECTIVENESS ALTERNATIVE SELECTION PLANS IN THIS STUDY ARE: (1) NET ECONOMIC RETURN AND (2) SELECTION RESPONSE. THE OPTIMUM BREEDING SELECTION PLAN OF SWINE IN GREECE APPEARS AS FOLLOWS: - …
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EFFECTS OF CHOICE ON MULTIPLICATION AND DIVISION FLUENCY ACQUISITION FOR THIRD GRADE STUDENTS
… Instructional choice involves two parts: selection in response to present multiple selections and differential outcomes in response to the selection. A concurrent chain schedule contains an initial link, point in which the selection response is made and a terminal link, response required …
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Selection for milk somatic cell count in laboratory mice
A bidirectional selection experiment for high and low somatic cell count (SCC) was conducted over 14 generations with two selected lines (high line = HSCC, low line = LSCC) of mice. Seven secondary traits (milk yield, total white blood cell count, percentage of phagocytic cells in blood, endotoxin …
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Analysis of Inbreeding in a Closed Population of Crossbred Sheep
… and 25% Finnsheep breeding to determine selection response for spring fertility. The population had been randomly divided in 1987 into a fall-lambing selection line (S) of 125 ewes and 10 rams, fall-lambing environmental control line (E) of 55 ewes and 5 rams, and a spring-lambing genetic …
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Controlling item exposure for response time-informed item selection in computerized adaptive testing
… information criterion (MIC) by the expected response time for each item effectively reduced the average completion time for a test of fixed length while maintaining efficiency of ability estimation. However, this also resulted in an extremely skewed distribution of item exposure rates. To …