Effects of lanthanum and cerium on seed germination, growth, chlorophyl, and relative water contents in dinorado upland rice (Oryza sativa L.)
2024
Balobalo, A.J.V.
Rare Earth Elements (REEs) like lanthanum (La) and cerium (Ce) are potential agricultural biostimulants. This study evaluated the effects of the different concentrations of La (0, 2.0, 3.0, and 5.0 ppm) and Ce (0, 0.1, 0.3, and 0.5 ppm) on some physiological parameters such as seed germination, shoot and root growths, chlorophyll content, relative water content (RWC), and number of tillers in dinorado upland rice (Oryza sativa L.). Results showed that both La and Ce had a positive influence on rice growth. La and Ce significantly enhanced seed germination, shoot and root lengths, chlorophyll content (SPAD values). RWC, and tiller number of dinorado upland rice, with the most pronounced effects observed at 3.0 ppm La and 0.5 ppm Ce. The findings from this study could contribute valuable insights into the potential use of La and Ce as enhancer of different growth pararmeters of upland rice. Understanding their impact on plant physiology is crucial for optimizing their application in agriculture. Further study is necessary to determine the long- term effects of REEs on rice plants.
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