Results 21 to 30 of about 2,181,553 (341)

Implications of genotype by environment interactions on heritability estimate and variance components of cotton (Gossypium hirsutum L.)

Cogent Food & Agriculture, 2022
Genetic variation in cotton is crucial when traits are heritable and elucidation of the underlying genetic components of these helps in selecting elite genotypes.
Blessing Chapepa, Marco Mare, Washington Mubvekeri, Dumisani Kutywayo   +3 more
doaj   +1 more source

Genetic Parameters and Trait Associations in Wheat Under Drought and Low Nitrogen Conditions

Nitrogen
Drought and low nitrogen stress are the leading cause of low crop production and productivity worldwide. Developing drought-tolerant wheat germplasm resilient to low nitrogen conditions is essential through genetic enhancement and selection for novel ...
Sbongeleni Warren Duma, Hussein Shimelis, Seltene Abady Tesfamariam, Toi John Tsilo   +3 more
doaj   +1 more source

Likelihood inference for small variance components

, 2000
In this paper, we develop likelihood-based methods for making inferences about the components of variance in a general normal mixed linear model. In particular, we use local asymptotic approximations to construct confidence intervals for the components ...
Stern, S.E., Welsh, A.H.
core   +2 more sources

Variance Components, Correlation and Path Coefficient Analysis of Morpho-Physiological and Yield Related Traits in Spider Plant (Gynandropsis gynandra (L.) Briq.) under Water-Stress Conditions

Agronomy, 2023
Drought is the most complex abiotic stress for crop production at the global level. Therefore, developing new African spider plant genotypes tolerant to drought stress is one of the best approaches to achieving and optimizing high yield potential with ...
Tinashe Chatara, Cousin Musvosvi, Aristide Carlos Houdegbe, Julia Sibiya   +3 more
doaj   +1 more source

Generalizibility of instructional and school effectiveness indicators across nations [PDF]

, 1989
In a secondary analysis of the data base of the IEA second mathematics study, the association of school and instructional characteristics with mathematics achievement within and across 17 countries at the school and student level was investigated.
Pelgrum, W.J., Scheerens, Jaap, Vermeulen, C.J.A.J.   +2 more
core   +3 more sources

Estimation of variance components from the measurement in a geodetic network [PDF]

Acta Montanistica Slovaca, 2005
The precision of geodetic instruments used for precise measurements in geodetic networks is described by the dispersion σ2 or the standard deviation σ. Some of geodetic instruments, like electro optic range-finder and its accuracy are characteristized by
Bajtala Marek, Sokol Štefan
doaj  

A variance components factor model for genetic association studies: a Bayesian analysis.

, 2010
Studies of gene-trait associations for complex diseases often involve multiple traits that may vary by genotype groups or patterns. Such traits are usually manifestations of lower-dimensional latent factors or disease syndromes.
Nonyane, BAS, Whittaker, JC
core   +1 more source

Conductance fluctuations in the presence of spin scattering [PDF]

, 2003
Electron transport through disordered systems that include spin scatterers is studied numerically. We consider three kinds of magnetic impurities: the Ising, the XY and the Heisenberg. By extending the transfer matrix method to include the spin degree of
B.I. Halperin, B.L. Altshuler, C.W.J. Beenakker, I.K. Marmorkos, I.L. Aleiner, I.L. Aleiner, J. Ohe, J.A. Folk, J.B. Pendry, Jun-ichiro Ohe, M. Büttiker, M. Büttiker, M. Cieplak, M. Cieplak, M. Yamamoto, Masayuki Yamamoto, N.O. Birge, P. Bruno, P. Debray, P.A. Lee, R. Landauer, R. Landauer, S. Datta, T. Ando, T. Koga, T. Matsuyama, Tomi Ohtsuki, Y. Takane   +27 more
core   +1 more source

Genetic parameters and genetic and phenotypic trends of performance traits of equines from the Brazilian Army

Revista Brasileira de Zootecnia, 2012
The objective of this research was to compare the magnitude of genetic parameters (coefficients of heritability and genetic correlation) as estimated by the Restricted Maximum Likelihood (REML) method and Bayesian Inference, and to estimate the genetic ...
Mariana de Almeida Dornelles, Ronyere Olegário de Araújo, Dionéia Magda Everling, Tomás Weber, Jader Silva Lopes, Paulo Santana Pacheco, Fernanda Cristina Breda, Paulo Roberto Nogara Rorato   +7 more
doaj   +1 more source

Physical appearance perfectionism explains variance in eating disorder symptoms above general perfectionism [PDF]

, 2015
Physical appearance perfectionism is a domain-specific form of perfectionism comprising two components: hope for perfection and worry about imperfection (Yang & Stoeber, 2012).
Bardone-Cone, Bardone-Cone, Chan, Chang, Chen, Choo, Dunn, Dunn, Dunn, Egan, Enns, Fairburn, Flett, Frost, Frost, Garner, Haase, Haase, Haase, Hewitt, Hewitt, Hill, Hill, Hongfei Yang, Joachim Stoeber, Landa, Lombardo, McArdle, Minarik, Nunnally, Peixoto-Plácido, Sherry, Slade, Slaney, Slaney, Snell, Soares, Stoeber, Stoeber, Stoeber, Tabachnick, Terry-Short, Wade, Welch, Yang, Yang, Yang, Zhu   +47 more
core   +1 more source