Figure 4

Dry root rot disease incidence under pathogen, and combined stress treatments in field trials. Field experiment was conducted at three different geographical locations during 2018–2019 and seven different geographical locations during 2019–2020 in India (Supplementary Fig. S5) with control, PS, LSM, and CS (Supplementary Fig. S6). The experiment was conducted with four replicates in RCB design. The results from PS and CS treatments were analysed to understand the impact of low soil moisture on DRR incidence. The field trial layout (representative) for PS treatment and CS treatment are shown in figure (a) and (b), respectively. Percent DRR disease incidence calculated during the field trial period are shown for five field trial location in the graph (c). All the DRR disease incidence is an average of three to four RCB replicates with Standard error of mean. Significance difference between means were analysed by Student’s t test. *p < 0.05, **p < 0.005, ***p < 000.5. PS, pathogen stress; CS, combined low soil moisture and pathogen stress.