Scheffé, H.: The Analysis of Variance. Wiley, New York 1959, 477 Seiten, $ 14,00

Enderlein, G.

doi:10.1002/bimj.19610030206

Cited by 18 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To test for differences in growth rate between axenic and xenic strains, triplicate cultures of both axenic and xenic VIA were grown at 10°C, 100 μmol photons m -2 s -1 . Analysis of variance (ANOVA), nested ANOVA, Sheffe’s Test [66], and the Tukey multiple comparison test [67] were used to determine the significance of differences among isolates at different temperatures and light levels, and between axenic and xenic growth rates. For each isolate, the diameter of 30 cells was measured using an E800 microscope at 20X (Nikon).…”

Section: Methodsmentioning

confidence: 99%

Molecular subdivision of the marine diatom Thalassiosira rotulain relation to geographic distribution, genome size, and physiology

et al. 2012

View full text Add to dashboard Cite

BackgroundMarine phytoplankton drift passively with currents, have high dispersal potentials and can be comprised of morphologically cryptic species. To examine molecular subdivision in the marine diatom Thalassiosira rotula, variations in rDNA sequence, genome size, and growth rate were examined among isolates collected from the Atlantic and Pacific Ocean basins. Analyses of rDNA included T. gravida because morphological studies have argued that T. rotula and T. gravida are conspecific.ResultsCulture collection isolates of T. gravida and T. rotula diverged by 7.0 ± 0.3% at the ITS1 and by 0.8 ± 0.03% at the 28S. Within T. rotula, field and culture collection isolates were subdivided into three lineages that diverged by 0.6 ± 0.3% at the ITS1 and 0% at the 28S. The predicted ITS1 secondary structure revealed no compensatory base pair changes among lineages. Differences in genome size were observed among isolates, but were not correlated with ITS1 lineages. Maximum acclimated growth rates of isolates revealed genotype by environment effects, but these were also not correlated with ITS1 lineages. In contrast, intra-individual variation in the multi-copy ITS1 revealed no evidence of recombination amongst lineages, and molecular clock estimates indicated that lineages diverged 0.68 Mya. The three lineages exhibited different geographic distributions and, with one exception, each field sample was dominated by a single lineage.ConclusionsThe degree of inter- and intra-specific divergence between T. gravida and T. rotula suggests they should continue to be treated as separate species. The phylogenetic distinction of the three closely-related T. rotula lineages was unclear. On the one hand, the lineages showed no physiological differences, no consistent genome size differences and no significant changes in the ITS1 secondary structure, suggesting there are no barriers to interbreeding among lineages. In contrast, analysis of intra-individual variation in the multicopy ITS1 as well as molecular clock estimates of divergence suggest these lineages have not interbred for significant periods of time. Given the current data, these lineages should be considered a single species. Furthermore, these T. rotula lineages may be ecologically relevant, given their differential abundance over large spatial scales.

show abstract

Section: Methodsmentioning

confidence: 99%

Molecular subdivision of the marine diatom Thalassiosira rotulain relation to geographic distribution, genome size, and physiology

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Data processing was conducted using Microsoft Excel 2013. Analysis of variance (ANOVA) [37] was performed using PROC GLM in SAS version 9.4 (SAS Institute Inc., Cary, NC, USA). A combined ANOVA including all data was performed to compare the results of the methods, but single ANOVA for individual methods was conducted separately to compare the differences among genotypes and calculate repeatability.…”

Section: Nir Evaluations and Prediction Correcting Of Zx-50 Methodsmentioning

confidence: 99%

“…Data processing was carried out in Microsoft Excel 2013, and ANOVA [37] was performed using PROC GLM in SAS version 9.4. Pearson correlation between DA 7250 and ZX-50 MC was computed based on genotype means for individual sample sets but on sample basis for a combined analysis of all 760 samples.…”

Section: Validation and Application Of Zx-50 Methodsmentioning

confidence: 99%

Comparison and Application of Non-Destructive NIR Evaluations of Seed Protein and Oil Content in Soybean Breeding

Jiang

2020

Agronomy

View full text Add to dashboard Cite

A plant breeding program needs to evaluate a large number of materials for different traits within a limited time. Near-infrared (NIR) spectroscopy has been used to quickly determine seed composition in various crop species. In this study, we compared whole-seed evaluations of protein and oil content by NIR methods in soybean [Glycine max (L.) Merr.], and then discussed the application to plant breeding. The differences among the entries tested were highly significant in both traits for each method used. No significant difference but high correlation and consistency existed between DA 7250 and wet-chemistry methods. Compared with DA 7250, ZX-50 exhibited, to some extent, differences or errors. The differences of ZX-50 methods were found to be correlated with seed sizes and could be corrected using regression equations formulated for bias calculation. After correction, the differences in the predictions between DA 7250 and ZX-50 methods were insignificant. Similar to DA 7250, ZX-50 methods exhibited a high repeatability (> 98%) of the predictions. By validation with 760 bulk samples of different seed types and 240 single-plant samples, it further demonstrated that as a non-destructive, fast and cost-efficient method, ZX-50 NIR analysis with an appropriate bias correction could be used in soybean breeding, specifically suitable for single plant selection based on whole seeds.

show abstract

“…where µ, τ i , β j and λ i j and are constant, row effect, column effect and interaction effect, respectively. The parameter π i jk may be considered fixed or random with probability density hπ i jk , over [0, 1] depending on whether I and J are random or not [20]. In nominal data, sum of square (SS) is the trace of its variance-covariance matrix [21], thus relying on [12], [13], the sum of square (SS) is given as: Total Sum of Square (TSS)= n −…”

Section: Informed Consentmentioning

confidence: 99%

CATANOVA Analysis of Knowledge and Control Practices of Hepatitis B Virus Infection amongst Tertiary University Students

Paul

Prisilia

2020

Galician med. j.

View full text Add to dashboard Cite

Frequency data, having no underlying metric, are frequently encountered in real-life situations. The analysis of such data is usually difficult as nominal data are inherently less informative than quantitative data and decisions are taken erroneously using such results. The objective of the research was to study the significant effect of gender, faculties and interaction using categorical data in a two-way cross classification. Materials and Methods. The study applied a cross sectional study with a total sample size of 434. Multistage sampling was adopted. Categorical analysis of variance (CATANOVA) technique was used for analysis. This is suitable as it uses a two-way ANOVA with quantal responses as equivalent of a three-way contingency table in which one of the classifications is treated as responses to the other two. The study considered frequency data involving response scores of students using a scale of good, fair and poor. Results. Numerical results revealed poor level of student’s knowledge and control practices of hepatitis B virus infection. And it is significantly (p>0.05) the same in the study Universities. Moreover, gender and faculties, as well as interaction have no significant (p>0.05) effect on student’s knowledge and control practices of hepatitis B virus infection.

show abstract

Scheffé, H.: The Analysis of Variance. Wiley, New York 1959, 477 Seiten, $ 14,00

Cited by 18 publications

References 0 publications

Molecular subdivision of the marine diatom Thalassiosira rotulain relation to geographic distribution, genome size, and physiology

Molecular subdivision of the marine diatom Thalassiosira rotulain relation to geographic distribution, genome size, and physiology

Comparison and Application of Non-Destructive NIR Evaluations of Seed Protein and Oil Content in Soybean Breeding

CATANOVA Analysis of Knowledge and Control Practices of Hepatitis B Virus Infection amongst Tertiary University Students

Contact Info

Product

Resources

About