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Jantzi Sarah C. Dutton Christopher L. Saha Amartya Masikini Rosemary Almirall Jose R. 《Journal of Soils and Sediments》2019,19(1):478-490
Journal of Soils and Sediments - The goal of this study was to develop a “green chemistry” alternative sample preparation method for elemental analysis of sediments using laser ablation... 相似文献
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1. The effect of three metabolisable energy (ME) concentrations 12.2, 11.3 and 10.5 MJ ME/kg and two forms of diet (mash and pellet) on egg production in summer and winter were studied. The different ME values were obtained by diluting the 12.2 MJ ME/kg diet with sugar beet pulp of 2.88 MJ/kg DM. In a 3rd summer experiment the water intake of hens on these diets was examined. Data were analysed by factorial analysis of variance, and the relationship between performance and dietary energy concentration was examined by regression analysis.
2. The use of low energy diets (10.5 to 11.3 MJ ME/kg) decreased egg production in both seasons, but pelleting diets improved egg production and egg weight in summer. Egg weight was not affected by energy density in winter, but decreased in the summer when energy density increased.
3. In winter, food consumption was not affected by the dietary ME, while in summer food consumption increased when the dietary ME increased. Therefore, energy intake was not the same at all energy densities, but tended to increase as the energy density increased.
4. In summer, pelleting improved food efficiency and egg production and increased water consumption and the ratio of water to food intake. Water intake and water: food ratio decreased with increasing dietary energy concentration. 相似文献
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Ana Rivera Daniel Fenero Antoni Almirall Juan José Ferreira Joan Simó Marçal Plans Roser Romero del Castillo Francesc Casañas 《Genetic Resources and Crop Evolution》2013,60(6):1885-1898
Few studies have explored sensory variability in beans. We used geographic, agronomic, morphological, and genetic criteria to select numerous groups of landraces from among the many collected in Catalonia (northeast Spain). Beans cultivated in a single location to avoid environmental effects were submitted to a trained panel for sensory analysis. We used multiple linear regression to explore whether the flavor and texture of the seed (evaluable only by tasting after cooking) can be estimated from easily measurable traits like the appearance of the beans. The degree of variability found for all sensory traits (coefficients of variation: 20–70 %) was similar to that of agronomic traits; however, entries were grouped differently for sensory and agronomic traits, suggesting independent evolution. Negative genotypic correlations between some sensory traits will probably hinder attempts to achieve ideotypes combining low seed-coat perceptibility, low mealiness, and high flavor. Regressions between easily measurable traits (agronomic and culinary traits and appearance of the seeds) and flavor and texture yielded R2 values ranging from 0.47 to 0.64. We consider these values good enough for rough screening of sensory attributes in genetic resources studies or breeding. 相似文献
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Francesc Casañas Elena Pérez-Vega Antoni Almirall Marçal Plans Josep Sabaté Juan José Ferreira 《Euphytica》2013,190(2):279-288
The character of flat versus round fruit shape is controlled by a single gene (S/s) on chromosome 6 in peach [Prunus persica (L.) Batsch], with the flat fruit phenotype produced by the S/s heterozygous genotype. We used 16 simple sequence repeat (SSR) markers at the S/s region and physically mapped them in the peach sequence. Seven were mapped in the new F1 population from a cross between the two flat fruit cultivars 'UFO-3' and ‘Sweet Cap’ that segregated for the S/s gene. Fourteen of the SSRs were mapped in the Prunus reference map (T×E), of which seven had already been mapped and seven were added within this work. Our results confirmed the position of S/s on the distal part of chromosome 6. Thirteen of the initial 16 markers were also studied in a collection of flat (66) and round (39) cultivars, where some of the alleles were associated to the character and one of them, the 131 bp allele of marker UDP98-412, predicted in 98.4 % of the cases the flat shape. This allele was highly predictive of the flat fruit character in an additional collection of 100 cultivars, and is an useful tool for marker-assisted selection of flat peaches and nectarines, a trait that is becoming of increasing interest in breeding programs as consumption of these fruits is growing in the European market. 相似文献
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