Ammi Analysis or GGE Biplot Analysis ?
I have several Nitrogen application treatments in a three year Winter wheat Experiment.
Can I consider each treatment as an environment and run an AMMI GGE Biplot Analysis to look for the performant and stable genotype in each environment?
Dear Patrice
Nitrogen application levels really represent an environment factors, and you can perform the analysis according to this assumption.
Good Luck
yes since the environmental factors like temperature ,wind speed , sun light
are differing among the 3 years of the study or experiment.if the locations of the experiment is differing among years it is better because the soil is another factor.
you can use GGE biplot analysis. ı recommend reading this article ''INFLUENCE OF NITROGEN FERTILIZATION LEVELS ON GRAIN YIELD AND ITS COMPONENTS IN BARLEY (Hordeum vulgare L.)''
Use REML analysis for multilocational trials designed in Alpha lattice
you can able to use different statistical methods such as multiple range tests, PCT(principal component analysis) .
cluster analysis also regards as a modern statistical analysis method which the results can be expressed as dendogram.
both are suitable
but have seen any change in any of genotype after the year passing?
It is also the result significant and non significant difference are the results , if before doing the research we know the results in this case the investigation is not necessary.
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