Influence of Foliar-Applied nano-iron oxide on Growth Traits and Yield Components of Four Radish (Raphanus sativus L.) Varieties

• Sura Hameed Baher¹,Hiba Mohammed Taha Yaseen Al-Samarrai², Amna saad hamood3

  Author

• Sura Hameed Baher¹,Hiba Mohammed Taha Yaseen Al-Samarrai², Amna saad hamood3

  Author

   A field trial was conducted at the Department of Horticultural and Landscape Engineering, Faculty of Agriculture, Tikrit University, during the 2024-2025 growing season to evaluate the effects of foliar application of nano-iron oxide at concentrations of 0, 20, 40, and 60 mg L⁻¹ on the vegetative growth and yield of four varieties of radish (Raphanus sativus L.) (Black Local, Cherry Bell, Red Local, and Crimson Giant). The trial was conducted using a fully randomized block design (RCBD) with three replicates.

The results showed that foliar application of nano-iron oxide significantly improved vegetative growth and yield parameters compared to the control group. Most measured growth and yield parameters recorded their highest values at 60 mg L⁻¹.  resulting in greater biomass accumulation and the better performance of yield components.

Among the tested varieties, Crimson Giant recorded the highest mean values for most of the studied traits, whereas Cherry Belle generally recorded the lowest values, and the lowest values were for Cherry Bell. Due to the interaction effect, the treatment of nano-iron oxide at 60 mg L-1 induced the highest yield and The lowest yield was recorded by the Cherry Belle variety under the control treatment (0 mg L⁻¹).

Overall, foliar application of nano-iron oxide, particularly at 60 mg L⁻¹, can be useful in enhancing radish growth and yield, and is especially beneficial for high yielding varieties like Crimson Giant.

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