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Please use this identifier to cite or link to this item: http://www.erepo.iihr.ernet.in/handle/123456789/140

Title: Augmented BIB Design-an alternative statistical design in germplasm evaluation trials
Authors: R, Venugopalan
K R M, Swamy
M K, Chandra Prakash
Keywords: Accessions
Augmented Balanced Incomplete Block Design
control
germplasm
okra
test treatments
Issue Date: 2008
Publisher: Journal of Horticultural Sciences
Citation: Venugopalan, R., KRM Swamy and M.K. Chandra Prakash, 2008. Augmented BIB Design-an alternative statistical design in germplasm evaluation trials, Journal of Horticultural Sciences, 3(1): 84-88.
Abstract: Randomized Block Design (RBD) is commonly employed to evaluate a set of germplasm accessions (test treatments) along with local checks. In such a trial, if test treatments under evaluation are high in number and availability of seeds is limited, an alternate experimental design needs to be employed. As a remedy, Balanced Incomplete Block Design (BIBD), which estimates treatment contrast with more precision and treatments are not repeated in all the blocks, unlike in RBD, may be used. Such a constructed layout, not only saves precious seed material from test treatments, but also directly reduces the cost of all related inputs such as labour, water, fertilizer, pesticide etc. These factors were elucidated in the evaluation of 100 accessions of okra along with four check varieties (Arka Anamika, Arka Abhay, Parbhani Kranti and PB-7) using Augmented BIB Design with six blocks, in the Division of Vegetable crops at I.I.H.R., Bangalore during Kharif 2005. Results showed that by adopting BIB experimental design, instead of the regular complete block design, 60.2 % of the land area required for conducting germplasm evaluation in okra could be reduced.
URI: http://hdl.handle.net/123456789/140
Appears in Collections:Economics & Statistics

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