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Notes on the Variance of Relative Yield as a Measure of Stability
Author(s) -
Hühn M.
Publication year - 1995
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1995.tb01131.x
Subject(s) - stability (learning theory) , yield (engineering) , variance (accounting) , measure (data warehouse) , mathematics , statistics , table (database) , variety (cybernetics) , computer science , thermodynamics , data mining , economics , physics , accounting , machine learning
The actual yields from multilocation variety trials are commonly analysed as a two‐way table (rows = varieties, columns = locations) of mean yields. In this paper, relationships between the recently proposed new stability parameter ‘variance of relative yield’ and the two stability parameters of the ‘classical’ joint regression approach in stability analysis, are investigated. The variance of relative yield as a measure of stability exhibits an undesirable dependence on the mean yield of the respective variety. Generalizations and improvements of some recent results and conclusions of Piepho (1994) are discussed.