Root-zone salinity. I. Selecting a product-yield index and response function for crop tolerance

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The impact of soil salinity on the yield, composition and physiology of the bioenergy grass Miscanthus × giganteus (2017, methodology): “The ST-Index for M. 9 giganteus was estimated to be 10.68, which ranks it as more tolerant than the closely related forage maize (9.13) and less tolerant than barley (14.00) (adjusted from Steppuhn et al., 2005a,b).”
Root-zone salinity. II. Indices for tolerance in agricultural crops (2005, methodology): “In this paper, we evaluate several methods for convertingIn our companion paper (Steppuhn et al., 2005), we Ct and b to C50 and s: (i) a direct method, (ii) an analyticalsubmitted the argument that the product yields of ag- method, and (iii) several empirical methods. ricultural crops relate more…”
Overcoming Salinity Barriers to Crop Production Using Traditional Methods (2013, background): “Steppuhn et al. (2005) studied the relationships between average root-zone salinity and wheat yield in a field experiment conducted in Canada’s Salt Tolerance Testing Facility, and found that Eq.”
Approaches to increasing the salt tolerance of wheat and other cereals. (2006, background): “…studies present a sigmoidal rather than a ‘bent stick’ relationship between yield and salinity, leading to the suggestion that an EC50 (EC that results in a 50% yield decline) is a more useful comparison between genotypes than a linear rate of decline (Royo et al., 2000; Steppuhn et al., 2005).”