Alleviating Effect of Salicylic Acid Pre-treatment on Soil Moisture Stress of Waxy Corn

  • Seo, Youngho (Gangwon Agricultural Research & Extension Services) ;
  • Ryu, Sihwan (Gangwon Agricultural Research & Extension Services) ;
  • Park, Jongyeol (Gangwon Agricultural Research & Extension Services) ;
  • Choi, Jaekeun (Gangwon Agricultural Research & Extension Services) ;
  • Park, Kijin (Gangwon Agricultural Research & Extension Services) ;
  • Kim, Kyunghi (Gangwon Agricultural Research & Extension Services)
  • Received : 2014.12.04
  • Accepted : 2015.06.26
  • Published : 2015.06.30


Soil moisture shortage can reduce yield of waxy corn because maize is one of the sensitive crops to the drought stress. Farmers cannot irrigate due to limited water resource and irrigating facilities although applying water is the most effective practice to solve the drought problem. The study was conducted to investigate the pre-treatment effect of salicylic acid on reducing drought damage of waxy corn (Zea mays L.). Salicylic acid at concentration of 0.2 mM was applied at seven-leaf stage or ten-leaf stage three times. Drought stress was imposed by withholding irrigation from 11 days before anthesis to 10 days after anthesis. Application of salicylic acid significantly increased ear length by 11.0~12.3% and yield by 8.8~11.3% compared with non-treated control, indicating that the drought injuries of waxy corn can be alleviated through pre-treatment of salicylic acid at the vegetative stage.


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