Results 31 to 40 of about 195 (132)
Breeding Potential of Elite Pee Dee Germplasm in Upland Cotton Breeding Programs
Crop Science, Volume 53, Issue 3, Page 894-905, May 2013., 2013 ABSTRACT Successful plant breeding programs begin with parental line selection. Effective parental line selection is facilitated when the breeding potential of candidate parental lines is known. Using topcross families involving germplasm from eight U.S.
B. T. Campbell +4 more
wiley +1 more source
Repeatability and Heritability of Behavioural Types in a Social Cichlid
International Journal of Evolutionary Biology, Volume 2011, Issue 1, 2011., 2011 Aim. The quantitative genetics underlying correlated behavioural traits (‘‘animal personality’’) have hitherto been studied mainly in domesticated animals. Here we report the repeatability (R) and heritability (h2) of behavioural types in the highly social cichlid fish Neolamprologus pulcher. Methods.
Noémie Chervet +5 more
wiley +1 more source
Application of Multilevel Models to Morphometric Data. Part 1. Linear Models and Hypothesis Testing
Analytical Cellular Pathology, Volume 25, Issue 4, Page 173-185, 2003., 2003 Morphometric data usually have a hierarchical structure (i.e., cells are nested within patients), which should be taken into consideration in the analysis. In the recent years, special methods of handling hierarchical data, called multilevel models (MM), as well as corresponding software have received considerable development.
O. Tsybrovskyy, A. Berghold
wiley +1 more source
Comparison of the Stochastic Models for Double-Differenced GPS Measurements [PDF]
ITB Journal of Engineering Science, 2004 Double-differenced GPS carrier phase measurements are commonly used in GPS precise positioning applications and processed with algorithms based on the least-squares (LS) principle. In order to apply the LS principle, one needs to define properly both the
Dudy Darmawan, Fumiaki Kimata
doaj
Austrian Journal of Statistics, 2014 The paper is focused on the decomposition of mixed partitioned multivariate models into two seemingly unrelated submodels in order to obtain more efficient estimators.
Eva Fišerová, Lubomír Kubáček
doaj +1 more source
Estimation of variance and covariance components—MINQUE theory
Journal of Multivariate Analysis, 1971 The paper consists of two parts. The first part deals with solutions to some optimization problems. The general problem is one of minimising trace \(AVA' U\) with respect to elements of matrix \(A\), where \(V\) and \(U\) are positive definite matrices, subject restrictions of the type \(AX=0\) or \(X'AX=0\) and trace \(AV_i=p_i\), \(i=1,\dots,k\), or \
openaire +1 more source
Genetic parameters for some growth traits of Nigerian local chickens [PDF]
Biotechnology in Animal Husbandry, 2017 Genetic parameters were estimated for bodyweight (BWT), shank length (SHL), and wing length (WL) of Nigerian local chicken (NLC) from 4 to 20 weeks of age by fitting dyadic mixed model (dmm) equations which yield estimates of variance components ...
Udeh Ifeanyichukwu
doaj
Tikrit Journal of Pure Science, 2020 In this study, the variance compounds parameters of the mixed bi-division variance analysis sample are estimated. This estimation is obtained, by Bayes quadratic unbiased estimator. The second way to estimate variance compounds parameters of a suggested
Shaymaa Riyadh Thanoon
doaj +2 more sources
Processing of a geodetic network determined in ETRS-89 with application of different cofactors [PDF]
Acta Montanistica Slovaca, 2012 At present, manufacturers characterize the accuracy of vectors measured by the static method of GNSS technology usingrelationship 5 mm + 1⋅ D ppm .
Slavomír Labant +4 more
doaj
Genetic Effect on Amylose and Protein Contents in the Crossed Rice Seeds
Plant Production Science, 2002 The nature of gene action may be revealed and desirable parents may be found by analyzing the combining ability and estimating the degree of heterosis in an early generation. Currently, varieties with a good eating quality are preferred.
Jong Gun Won +2 more
doaj +1 more source