Optimality of block designs used in one way elimination of Heterogeneity (Record no. 25569)

000 -LEADER
fixed length control field 01547nam a2200181Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20220817163342.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 151218b xxu||||| |||| 00| 0 eng d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 640
Item number SOM/OP
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Somy Kuriakose
245 ## - TITLE STATEMENT
Title Optimality of block designs used in one way elimination of Heterogeneity
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Vellanikkara
Name of publisher, distributor, etc. Department of Agricultural Statistics, College of Horticulture
Date of publication, distribution, etc. 1995
502 ## - DISSERTATION NOTE
Degree type MSc
520 3# - SUMMARY, ETC.
Summary, etc. Block designs are usually used in experiments where it is important to eliminate heterogeneity at least in one direction. From the class of designs it is desired to choose a design which will estimate the elementary treatment contrasts with maximum precision.

The optimality criteria are based on the dispersion matrix of all possible elementary contrasts. The A-optimality criterion based on the information matrix was derived.

Usually for comparing test treatments with a control RBD is used with the control treatment replicated in all blocks. The same objective could be achieved by using Balanced Treatment Incomplete Block Designs (BTIBD). BTIBD was found to be more efficient than RBD with the control treatment replicated in all blocks. Optimalities of BTIBD were also examined.

When a BTIBD was augumented with certain number of blocks, such that the augmented blocks contains only the test treatments the resulting design was found to be E-optimal.
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Krishnan S (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier http://krishikosh.egranth.ac.in/handle/1/5810104371
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Theses
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Permanent Location Current Location Shelving location Date acquired Full call number Barcode Date last seen Price effective from Koha item type
          KAU Central Library, Thrissur KAU Central Library, Thrissur Theses 2014-03-18 640 SOM/OP 170614 2014-03-18 2014-03-18 Theses
Kerala Agricultural University Central Library
Thrissur-(Dt.), Kerala Pin:- 680656, India
Ph : (+91)(487) 2372219
E-mail: librarian@kau.in
Website: http://library.kau.in/