The effect of foliar application of β-D-glucan nanoparticles (GNP) on the growth profile and yield of Curcuma longa was carried under glasshouse conditions. Various growth and yield related parameters, including plant fresh weight, shoot height, number of leaves, protein profile and rhizome yield were positively affected by the GNP treatment. The increase of large and small subunits of Rubisco was identified on the gel. GNP treatment increased the number of leaves per plant. Application of GNP significantly improved the curcumin content in turmeric plants. The results demonstrate the successful use of GNP in enhancing growth, yield and phytoconsituent of C. longa.
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