Riboflavin improves grain yield, 2-acetyl-1-pyrroline accumulation, and antioxidative properties of fragrant rice.

Background: Riboflavin, a vital water-soluble vitamin with antioxidative activity, plays a critical role in maintaining overall bodily health and defense responses. However, its impact on fragrant rice yield and aroma remains unexplored.

Results: In a 2022 pot experiment with Meixiangzhan and Yuxiangyouzhan fragrant rice cultivars, we applied riboflavin foliar treatments at concentrations of 0 (CK), 10 (R10), 20 (R20), and 40 (R40) mg L during the initial heading stage.

Foliar methyl jasmonate (MeJA) application increased 2-acetyl-1-Pyrroline (2-AP) content and modulated antioxidant attributes and yield formation in fragrant rice.

Endogenous methyl jasmonate (MeJA) mediates abiotic and biotic stresses in plants. Exogenous MeJA application can stimulate and defend plant gene expression and induce plant chemical defense. The effects of foliar MeJA application on yield and 2-acetyl-1-pyrroline (2-AP) biosynthesis of fragrant rice are scarcely investigated.

Effect of foliar copper application on grain yield, 2-acetyl-1-Pyrroline and copper content in fragrant rice.

Literature reporting the effects of application of exogenous copper (Cu) on the grain yield, 2-acetyl-1-pyrroline (2-AP) and Cu content of fragrant rice is scarce. Pot experiments were conducted in early and later season in 2020 with two fragrant rice cultivars, Meixiangzhan and Yuxiangyouzhan, at heading stage using four treatments, i.e.

Ultrasonic seed treatment improved physiological and yield traits of rice under lead toxicity.

Lead (Pb) is a highly toxic metal that damages normal plant metabolism and often results in reduced crop growth and yield. To measure whether or not ultrasonic seed (US) treatment alleviates Pb stress in rice, the seeds of two rice cultivars, i.e.