Publications by authors named "Josiane Viveiros"

Chemical ripeners are applied to ensure the quality of the final product in sugarcane production, especially under unfavorable conditions for sucrose accumulation. In addition, bioactivators such as the insecticide thiamethoxam can stimulate plant development. Thus, the application of thiamethoxam to sugarcane regrowth associated with ripener may have phytotonic effects and improve sugarcane quality and yield.

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Phosphorus (P) and nitrogen (N) directly impact final crop productivity by playing essential roles in photosynthesis, ATP formation, carbon assimilation, cell division, and transport. Compared with nutrient application to soil, the nutrients are applied directly to leaves provides a faster response because the nutrients enter plant metabolism more quickly. Foliar fertilization with nutritional supplements can intend to increase crop yields, and little is known about its ability to reduce oxidative stress.

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Extended periods of water stress negatively affect sugarcane crop production. The foliar application of supplements containing specific nutrients and/or organic molecules such as amino acids can improve sugarcane metabolism, stalk and sugar yields, and the quality of the extracted juice. The present study assessed the effectiveness of the foliar application of an abiotic stress protection complement (ASPC) composed of 18 amino acids and 5 macronutrients.

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Article Synopsis
  • Drought significantly reduces crop yields by causing harmful changes in plant physiology and metabolism, even in resilient crops like sugarcane.
  • Seaweed extract-based biostimulants have been shown to alleviate these negative effects during drought stress, though their impact on sugarcane's metabolism and yield has not been extensively studied.
  • A study conducted in Brazil demonstrated that the application of a seaweed extract improved sugarcane stalk yield and sugar accumulation while enhancing antioxidant activity and reducing oxidative stress during periods of drought.
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