Comparing efficiency of RCBD and alpha lattice designs: Case study, at Bako agricultural research center, West Shoa zone, Ethiopia

 
9783659211904: Comparing efficiency of RCBD and alpha lattice designs: Case study, at Bako agricultural research center, West Shoa zone, Ethiopia

The choices of experimental design as well as of statistical analysis are of huge importance in field experiments. The efficiency of alpha lattice design and randomized complete block design (RCBD) were compared in maize trials conducted in 2010 at Bako Agricultural Research Centre (BARC), in Ethiopia on 45 treatments to assess the efficiency of each in minimizing experimental error, coefficient of variation and error mean square for yield variable. The coefficient of variations (CV) compared to be 12.6 % for alpha lattice design and 14.6 % for RCBD respectively. The value of relative efficiency 1.35 indicates that the use of alpha lattice design instead of RCBD increased experimental precision by 35 percent. The gain is considerable in terms of efficiency attained by using alpha lattice design which favors wider use of these designs under field conditions. Based on the results we conclude that alpha lattice designs are more efficient than RCBD. In order to increase the precision of agricultural field experiments researchers are advised to use alpha lattice designs for large number of treatments compared to RCBD.

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lecturer at statistics department of Jimma University,Ethiopia.Courses offered:introduction to statistics,Demography,Introduction to probability theory,Design of Experiment,Time series,Biometry,Regression analysis and Advanced Biostatistics

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Book Description Book Condition: New. Publisher/Verlag: LAP Lambert Academic Publishing | Case study, at Bako agricultural research center, West Shoa zone, Ethiopia | The choices of experimental design as well as of statistical analysis are of huge importance in field experiments. The efficiency of alpha lattice design and randomized complete block design (RCBD) were compared in maize trials conducted in 2010 at Bako Agricultural Research Centre (BARC), in Ethiopia on 45 treatments to assess the efficiency of each in minimizing experimental error, coefficient of variation and error mean square for yield variable. The coefficient of variations (CV) compared to be 12.6 % for alpha lattice design and 14.6 % for RCBD respectively. The value of relative efficiency 1.35 indicates that the use of alpha lattice design instead of RCBD increased experimental precision by 35 percent. The gain is considerable in terms of efficiency attained by using alpha lattice design which favors wider use of these designs under field conditions. Based on the results we conclude that alpha lattice designs are more efficient than RCBD. In order to increase the precision of agricultural field experiments researchers are advised to use alpha lattice designs for large number of treatments compared to RCBD. | Format: Paperback | Language/Sprache: english | 68 pp. Bookseller Inventory # K9783659211904

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Book Description LAP Lambert Academic Publishing Aug 2012, 2012. Taschenbuch. Book Condition: Neu. Neuware - The choices of experimental design as well as of statistical analysis are of huge importance in field experiments. The efficiency of alpha lattice design and randomized complete block design (RCBD) were compared in maize trials conducted in 2010 at Bako Agricultural Research Centre (BARC), in Ethiopia on 45 treatments to assess the efficiency of each in minimizing experimental error, coefficient of variation and error mean square for yield variable. The coefficient of variations (CV) compared to be 12.6 % for alpha lattice design and 14.6 % for RCBD respectively. The value of relative efficiency 1.35 indicates that the use of alpha lattice design instead of RCBD increased experimental precision by 35 percent. The gain is considerable in terms of efficiency attained by using alpha lattice design which favors wider use of these designs under field conditions. Based on the results we conclude that alpha lattice designs are more efficient than RCBD. In order to increase the precision of agricultural field experiments researchers are advised to use alpha lattice designs for large number of treatments compared to RCBD. 68 pp. Englisch. Bookseller Inventory # 9783659211904

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Book Description LAP Lambert Academic Publishing Aug 2012, 2012. Taschenbuch. Book Condition: Neu. Neuware - The choices of experimental design as well as of statistical analysis are of huge importance in field experiments. The efficiency of alpha lattice design and randomized complete block design (RCBD) were compared in maize trials conducted in 2010 at Bako Agricultural Research Centre (BARC), in Ethiopia on 45 treatments to assess the efficiency of each in minimizing experimental error, coefficient of variation and error mean square for yield variable. The coefficient of variations (CV) compared to be 12.6 % for alpha lattice design and 14.6 % for RCBD respectively. The value of relative efficiency 1.35 indicates that the use of alpha lattice design instead of RCBD increased experimental precision by 35 percent. The gain is considerable in terms of efficiency attained by using alpha lattice design which favors wider use of these designs under field conditions. Based on the results we conclude that alpha lattice designs are more efficient than RCBD. In order to increase the precision of agricultural field experiments researchers are advised to use alpha lattice designs for large number of treatments compared to RCBD. 68 pp. Englisch. Bookseller Inventory # 9783659211904

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Book Description LAP Lambert Academic Publishing. Paperback. Book Condition: New. 68 pages. Dimensions: 8.7in. x 5.9in. x 0.2in.The choices of experimental design as well as of statistical analysis are of huge importance in field experiments. The efficiency of alpha lattice design and randomized complete block design (RCBD) were compared in maize trials conducted in 2010 at Bako Agricultural Research Centre (BARC), in Ethiopia on 45 treatments to assess the efficiency of each in minimizing experimental error, coefficient of variation and error mean square for yield variable. The coefficient of variations (CV) compared to be 12. 6 for alpha lattice design and 14. 6 for RCBD respectively. The value of relative efficiency 1. 35 indicates that the use of alpha lattice design instead of RCBD increased experimental precision by 35 percent. The gain is considerable in terms of efficiency attained by using alpha lattice design which favors wider use of these designs under field conditions. Based on the results we conclude that alpha lattice designs are more efficient than RCBD. In order to increase the precision of agricultural field experiments researchers are advised to use alpha lattice designs for large number of treatments compared to RCBD. This item ships from multiple locations. Your book may arrive from Roseburg,OR, La Vergne,TN. Paperback. Bookseller Inventory # 9783659211904

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Book Description LAP Lambert Academic Publishing, Germany, 2012. Paperback. Book Condition: New. Aufl.. Language: English . Brand New Book ***** Print on Demand *****.The choices of experimental design as well as of statistical analysis are of huge importance in field experiments. The efficiency of alpha lattice design and randomized complete block design (RCBD) were compared in maize trials conducted in 2010 at Bako Agricultural Research Centre (BARC), in Ethiopia on 45 treatments to assess the efficiency of each in minimizing experimental error, coefficient of variation and error mean square for yield variable. The coefficient of variations (CV) compared to be 12.6 for alpha lattice design and 14.6 for RCBD respectively. The value of relative efficiency 1.35 indicates that the use of alpha lattice design instead of RCBD increased experimental precision by 35 percent. The gain is considerable in terms of efficiency attained by using alpha lattice design which favors wider use of these designs under field conditions. Based on the results we conclude that alpha lattice designs are more efficient than RCBD. In order to increase the precision of agricultural field experiments researchers are advised to use alpha lattice designs for large number of treatments compared to RCBD. Bookseller Inventory # AAV9783659211904

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