Efficiency of Alpha Lattice Design in Rice Field Trials in Pakistan

Authors

  • M. Kashif University of Agriculture, Faisalabad
  • M. I. Khan Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan
  • M. Arif Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan
  • M. Anwer Rice Research Institute, Kala Shah Kako, Pakistan
  • M. Ijaz Rice Research Institute, Kala Shah Kako, Pakistan

DOI:

https://doi.org/10.3329/jsr.v3i1.4773

Keywords:

Rice, Alpha lattice design, RCBD, Pakistan.

Abstract

Two rice trials were conducted from 2005 to 2006 in rice research institute, Kala Shah Kako Pakistan to evaluate the efficiency of alpha lattice design in field experiments. The average standard error of difference between genotypes mean is used to calculate relative efficiency of alpha lattice design. Both experiments clearly identified the advantages of small blocks. The average gain in efficiency was 119% with maximum 128%. Mean ranks comparison for both randomized complete block and alpha lattice design were performed. It was observed that the ranks were not constant across the experiments. The results emphasize that the traditional randomized complete block designs (RCBD) should be replaced by alpha lattice in the agricultural field experiments when number of varieties to be tested in an experiment increases to more than five or ten. In such a situation finding a homogeneous block is quite difficult in field experiments.

Keywords: Rice; Alpha lattice design; RCBD; Pakistan.

© 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.

doi:10.3329/jsr.v3i1.4773                 J. Sci. Res. 3 (1), 91-95 (2011)

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Author Biographies

M. I. Khan, Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan

Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan

 

M. Arif, Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan

M. Arif

Department of Mathematics and Statistics, University of Agriculture, Faisalabad, Pakistan

 

 

M. Anwer, Rice Research Institute, Kala Shah Kako, Pakistan

M. Anwer

Rice Research Institute, Kala Shah Kako, Pakistan

 

M. Ijaz, Rice Research Institute, Kala Shah Kako, Pakistan

M. Ijaz

Rice Research Institute, Kala Shah Kako, Pakistan

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Published

2010-12-19

How to Cite

Kashif, M., Khan, M. I., Arif, M., Anwer, M., & Ijaz, M. (2010). Efficiency of Alpha Lattice Design in Rice Field Trials in Pakistan. Journal of Scientific Research, 3(1), 91. https://doi.org/10.3329/jsr.v3i1.4773

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Section

Section A: Physical and Mathematical Sciences