Drought Recovery and Grain Yield Potential of Rice after Chitosan Application

Authors

  • Suchada Boonlertnirun Department of Plant Production Technology, Faculty of Agricultural Technology and Agro-industry, Rajamangala University of Technology Suvarnabhumi, Huntra, Pranakhon Sri Ayutthaya 13200, Thailand.
  • Ed Sarobol Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
  • Sawit Meechoui Lampang Agricultural Research and Training Center, Rajamangala University of Technology Lanna, Lampang 52000, Thailand.
  • Isara Sooksathan Department of Agronomy, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

drought stress, chitosan application, rice (Oryza sativa L.)

Abstract

Chitosan is a biopolymer applied to plants in order to increase the key enzymes related to the closure of the plant’s stomata resulting in reduction of water loss. The aim of this experiment was to determine the effect of chitosan on drought recovery and grain yield of rice under drought conditions. The experimental design was arranged in RCBD with four replications of five treatments: sufficient irrigation, drought without chitosan, chitosan applied before drought, chitosan applied during drought and chitosan applied after drought. The experiment was conducted in a greenhouse at the Department of Plant Production Technology, Rajamangala University of Technology Suvarnabhumi, during April to August 2005.The results revealed that the treatment applied with chitosan before drought gave the highest yield and yield components and also showed good recovery. Furthermore, the percentage of damaged leaves was less than those of the other treatments. From this study, it is suggested that the severity of rice plants damaged from drought was reduced by chitosan application.

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Published

2007-03-30

How to Cite

Boonlertnirun, Suchada, Ed Sarobol, Sawit Meechoui, and Isara Sooksathan. 2007. “Drought Recovery and Grain Yield Potential of Rice After Chitosan Application”. Agriculture and Natural Resources 41 (1). Bangkok, Thailand:1-6. https://li01.tci-thaijo.org/index.php/anres/article/view/244176.

Issue

Vol. 41 No. 1 (2007): January-March

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.