Rice seeds were germinated with 0 to 12 µM cerium, and young plants were grown hydroponically with 0 to 100 µM cerium for 28 days. Cerium increased germination and shoot growth and altered some nutrient and sugar concentrations, illustrating the growth-promoting use of cerium in agriculture.
Key numbers
- Germination treatments 0, 4, 8 and 12 µM cerium; hydroponic treatments 0, 25, 50 and 100 µM cerium for 28 days (abstract).
- Cerium did not affect macronutrient or micronutrient concentrations in most tissues but raised total sugars in shoots at 25 to 100 µM (abstract).
Methods (brief)
Germination tests with three replicates of 25 seeds; hydroponic culture in a greenhouse in Mexico; tissue nutrients and cerium measured and correlated with growth variables.
Evidence fitness
Supports statements that cerium is studied as a plant biostimulant. It does not report cerium in rice grain and does not support food or human exposure statements.
Limitations
Hydroponic seedlings only; doses expressed in solution; no grain harvested.
Related evidence
Update history
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