Calculates relative drought index according to Fisher and Wood (1979)
Usage
R_drought_index(Yp, Ys, Mp, Ms)
Arguments
- Yp
Yield under control condition
- Ys
Yield under stress condition
- Mp
Mean Yield of all the genotypes under control Condition
- Ms
Mean Yield of all the genotypes under stress Condition
References
Fischer RA, Wood JT (1979) Drought resistance in spring wheat cultivars III. Yield association with morphological traits. Aust J Agr Res. 30: 1001-1020
Examples
R_drought_index(500, 350, 400, 300)
#> [1] 0.75
