Yield reduction index or Yield Stability Index (YSI)

Higer YSI value depicts that particular genotype is stable under both normal and stressed conditions

Usage

YSI(Yp, Ys)

Arguments

Yp

Yield under control condition

Ys

Yield under stress condition

Value

YSI

References

Bouslama, M., & Schapaugh Jr, W. T. (1984). Stress tolerance in soybeans. I. Evaluation of three screening techniques for heat and drought tolerance 1. Crop science, 24(5), 933-937.

Examples

YSI(500, 350)
#> [1] 0.7