Abstract

One of the main concerns related to closed systems is the potential spread of root pathogens. With the recirculation of nutrient solutions, ozone treatment was tested for the efficacy against plant pathogen (Pythium), dissolved oxygen levels, growth and yield of cucumber crop in hydroponic closed system during December-March 2020/21. Two nutrient solution feeding tank were used one with ozone treated and other without ozone treated in randomized complete design (RCD) with four replication. The results showed that no plants were affected with pythium diseases in both treatments Ozone treated and untreated during winter season. Significant (p < 0.05) differences were observed in chlorophyll content, as SPAD values between the two treatments and their interactions in cucumber. Also, no significant differences were observed in yield between the two treatments.

This work is licensed under a Creative Commons Attribution 4.0 License.