SciELO - Scientific Electronic Library Online

 
vol.44 issue2Buton mushroom cultivation in function of temperatureIdeal seeds harvest moment of different maize hybrids author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Ciência Rural

Print version ISSN 0103-8478

Abstract

BENIN, Giovani et al. Optimum number of wheat trials in different growing regions. Cienc. Rural [online]. 2014, vol.44, n.2, pp.247-252.  Epub Dec 03, 2013. ISSN 0103-8478.  http://dx.doi.org/10.1590/S0103-84782013005000152.

The objective of this study was to determine the optimal number of tests required to predict the performance of grain yield of wheat genotypes in different regions of Value for Cultivation and Use (VCU), with a view to selecting and recommending cultivars. Grain yield data from 285 field trials at 31 locations in the VCU Regions 1, 2, 3 and 4 in 2007-2011 were used. There are differences among VCU regions with reference to the repeatability coefficient and the number of tests required for a predetermined accuracy. It was noted the need to raise the number of tests VCU regions 2 and 4 and reduce the number of trials in the regions of VCU 1 and 3. In regions VCU 1, 2, 3 and 4, to a level of 80% accuracy, are required 8, 14, 10 and 12 tests, respectively.

Keywords : Triticum aestivum L; genotype x environment interaction; repeatability; selection.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License