Results 11 to 20 of about 211,500 (259)

Analysis of Combined Data for a Series of Similar Experiments [PDF]

open access: yesThe Egyptian Statistical Journal, 1992
Many agricultural experiments are conducted at more than one location and for several years. There is no standard reference which provides all of the details necessary for combining analysis of experiments with more than one factor. The objective of this
A.H. El-Attar
doaj   +1 more source

The Effect of Paclobutrazol Concentrations in Different Shade Levels on Coleus Plant Leaves Color

open access: yesJurnal Teknik Pertanian Lampung, 2022
Coleus scutellarioides is a leaf ornamental plant that is widely used as an ornamental plant in tourist attractions because it has an interesting leaf color.
Maretha Widhya Aulyaa Gusmawan   +2 more
doaj   +1 more source

Improvements in the processing of agricultural commodities: The case of cocoa liquor

open access: yesDyna, 2017
The solidification of the cocoa liquor is one of the most important steps for processing cocoa cultivars. This process is typically characterized as a continuous process, which may become a barrier for the randomization of the applied data treatments ...
Diego Castro-Fettermann   +4 more
doaj   +1 more source

Nonlinear split-plot design modeling and analysis of rice varieties yield

open access: yesScientific African, 2023
In this research, a class of nonlinear split plot design models where the mean function of the split-plot model is not linearizable is presented. This was done by fitting intrinsically nonlinear split-plot design (INSPD) models using the Chapman-Richards
I.J. David, O.E. Asiribo, H.G. Dikko
doaj   +1 more source

Split-Plot Central Composite Designs Robust to a Pair of Missing Observations

open access: yesJournal of Applied Sciences and Environmental Management, 2018
This study constructs robust split-plot central composite designs against missing pairs of observations. Split-plot central composite designs (CCD) consist of factorial (f), whole-plot axial (α), subplot axial (β), and center (c) points. A loss function
Y. Yakubu, AU Chukwu
doaj   +1 more source

Missing Observations in Split-Plot Central Composite Designs: The Loss in Relative A-, G-, and V- Efficiency

open access: yesJournal of Applied Sciences and Environmental Management, 2021
The trace (A), maximum average prediction variance (G), and integrated average prediction variance (V) criteria are experimental design evaluation criteria, which are based on precision of estimates of parameters and responses. Central Composite Designs(
Y. Yakubu, A.U. Chukwu
doaj   +1 more source

Improved Split-Plot and Multistratum Designs [PDF]

open access: yesTechnometrics, 2015
Many industrial experiments involve some factors whose levels are harder to set than others. The best way to deal with these is to plan the experiment carefully as a split-plot, or more generally a multistratum, design. Several different approaches for constructing split-plot type response surface designs have been proposed in the literature since 2001,
Luzia A. Trinca, Steven G. Gilmour
openaire   +3 more sources

Do split application of nitrogen and boron influence the hybrid true seed production from potato mother plant?

open access: yesJournal of Biological Research, 2020
Two consecutive field experiments were conducted during the period from October 2013 and 2014 to April 2014 and 2015 to show the effect of split application of nitrogen (SN) and boron (B) on hybrid TPS.
Rajesh Chakraborty
doaj   +1 more source

EXPERIMENTOS EM PARCELAS SUBDIVIDIDAS COM TRATAMENTOS PRIMÁRIOS EM BLOCOS INCOMPLETOS PARCIALMENTE BALANCEADOS: II. ANÁLISE INTRABLOCOS

open access: yesScientia Agricola, 1996
O objetivo do presente trabalho foi desenvolver uma metodologia adequada para análise intrablocos de experimentos em parcelas subdivididas quando os tratamentos primários estão dispostos em uma estrutura de delineamento em blocos incompletos parcialmente
A.R. de MORAIS, M.C.S NOGUEIRA
doaj   +1 more source

Split-plot designs for multistage experimentation [PDF]

open access: yesJournal of Applied Statistics, 2016
ABSTRACTMost of today’s complex systems and processes involve several stages through which input or the raw material has to go before the final product is obtained. Also in many cases factors at different stages interact. Therefore, a holistic approach for experimentation that considers all stages at the same time will be more efficient. However, there
Tyssedal, John Sølve, Kulahci, Murat
openaire   +2 more sources

Home - About - Disclaimer - Privacy