Effect of Chitosan on Rice Growth under Drought Stress at Different Growth Stages
DOI:
https://doi.org/10.14456/jare-mju.2024.44Keywords:
Chitosan, drought, growth stages of rice, yieldAbstract
Chitosan can be applied to trigger the immune system in plant under drought stress. The objectives of this study were to study the effect of chitosan application on rice yield under drought conditions at different growth stages of rice. The experiment was arranged in a 2x5 factorial in completely randomized design (CRD) with four replications. Factor A was chitosan applications (with and without chitosan application), while Factor B were watering conditions, which included regular watering, and water withdrawal at seedling, tillering, panicle initiation and heading stages. The experiment was conducted at the greenhouse of the Agronomy Division, Faculty of Agricultural Production, Maejo University, during September 2021 to January 2022. The results showed that chitosan application had significant effects on plant height, no. of tiller, no. of panicle, harvest index and yield. Chitosan application increased the yield by 58.1% compared to rice without chitosan. Moreover, chitosan application had significant effects on plant height and leaf greenness. Furthermore, severe yield loss caused by water deficit at heading stage could be diminished by chitosan application, which could help reducing yield loss by 56.06% compared to application without chitosan.
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