Fig. 4

Heatmap of rank summation index based on the percent reduction of 2023 and 2024 for (a) early (b) medium, and (c) late maturing pearl millet germplasms for all the traits together. Blue cells: germplasms with a lower percent reduction, thus being drought-tolerant; Red cells: indicate germplasms with a higher percent reduction, thus being drought-susceptible. CL, chlorophyll index; PH, plant height; PT, number of productive tillers; SG, stay-green; BM, biomass.