| Abstract |
Salt stress was mainly reported as a highly injurious issue that decreased rice yield in the northeastern part of Thailand. It dramatically reduces water absorption, damages photosynthesis, and induces oxidative stress in plants. Silicon (Si) is a beneficial element, widely used for promoting plant growth and recovering from severe stress damage. Hence, this research aimed to investigate whether Si application can enhance the growth and physiology of the KDML105 rice seedlings under salt stress. The hydroponically grown seedlings of KDML 105 rice were subjected to salinity conditions by adding 120 mM sodium chloride to the nutrient solution. Besides, control and salinity conditions were also applied to 2.0 mM sodium silicate. The results showed that salt stress significantly reduced seedling growth, relative water content (RWC), and leaf gas exchange. Si addition significantly improved salinity-affected dry mass. The RWC and net photosynthetic rate of KDML105 rice seedlings were significantly increased under Si-treated salinity conditions. In addition, the PCA-biplot showed that Si-treated seedlings were separated from non-treated seedlings under salt-stressed conditions. According to this finding, Si may be able to alleviate some salt stress damage in KDML105 rice seedlings. |
Publication
Journal Publication
ไทย