Robenzon E. Lorenzana

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The availability of cheap and abundant molecular markers has led to plant-breeding methods that rely on the prediction of genotypic value from marker data, but published information is lacking on the accuracy of genotypic value predictions with empirical data in plants. Our objectives were to (1) determine the accuracy of genotypic value predictions from(More)
Maize (Zea mays L.) breeders evaluate many single-cross hybrids each year in multiple environments. Our objective was to determine the usefulness of genomewide predictions, based on marker effects from maize single-cross data, for identifying the best untested single crosses and the best inbreds within a biparental cross. We considered 479 experimental(More)
In cellulosic ethanol production, the effi ciency of converting maize (Zea mays L.) stover into fermentable sugars partly depends on the stover cell wall structure. Breeding for improved stover quality for cellulosic ethanol may benefi t from the use of molecular markers. However, limited quantitative trait loci (QTL) studies have been published for maize(More)
Corn (Zea mays L.) stover, the residue left after harvest, is an abundant biomass source for producing cellulosic ethanol in the United States. Corn has been bred for increased grain yield but not for stover quality for cellulosic ethanol production. Our objective in this study was to assess the feasibility of breeding corn for grain yield and agronomic(More)
Nine hundred specimens of six shades of two commercially available dental porcelains were made with different thicknesses of opaque and body porcelain. The color of specimens were compared with shade guide samples by seven observers. The results were as follows: 1. The thickness of opaque and body porcelain to produce optimum color varies from shade and in(More)
Palladium-based alloys have had a significant import on the fabrication of ceramometal restorations. This article compares the bond strengths of four palladium-based alloys with that of a high-noble alloy. Tests were designed to closely represent clinical situations. Bond strengths of the palladium alloys compared favorably with the high-noble metals;(More)
Strength of a soldered palladium alloy, PGC (Engelhard Corp.), and a soldered medium gold alloy, PGX (Engelhard Corp.), was examined. The results obtained were as follows: Highest strength was observed with postsoldered specimens of PGC alloy. Microstructural examination of postsoldered specimens revealed nearly pore-free solder joints with PGC and PGX(More)
Power tools from your local hardware store make work faster and easier, and lead to a more uniform quality and larger volume of the finished work. Throughout the years, corn breeders have sought new tools to help them breed corn better. The most useful breeding tools, such as the computer and the plot combine (Geadelmann, 1994), are those that have proved(More)
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