Phytotonic effects of thiamethoxam on sugarcane managed with glyphosate as a ripener

Abstract

BACKGROUND Thiamethoxam and glyphosate are widely used in sugarcane production as an insecticide and ripener, respectively. In this study, the potential of these chemical products to also elicit phytotonic effects and enhance the physiological development and yield of sugarcane was evaluated. In field experiments, thiamethoxam and glyphosate were applied to sugarcane individually or in combination, and the effects of these chemical management strategies on sugarcane biometric and technological parameters were assessed. RESULTS Thiamethoxam application improved biometric parameters, especially stalk yield. Glyphosate application increased sugar yield, despite reducing the number of stalks and consequently the stalk yield. CONCLUSIONS Application of the insecticide thiamethoxam to sugarcane attenuates the depreciative effect of ripener (glyphosate) and has a potential phytotonic effect by increasing sugar yields in the early and late seasons. © 2022 Society of Chemical Industry.

Foliar Application of Amino Acids and Nutrients as a Tool to Mitigate Water Stress and Stabilize Sugarcane Yield and Bioenergy Generation

“…Although fiber content is negatively correlated with juice purity, the increase in fiber content in the ASPC treatment (Figure 4C) did not reduce the sucrose concentration. Moreover, the fiber content in the ASPC treatment did not exceed levels considered appropriate in the industry, i.e., between 12% and 13% [87,88]. Collectively, the improvements in these parameters increased sugar production (TRS) in kg Mg −1 .…”

“…By optimizing the antioxidant system and water use efficiency and reducing interference from plant abiotic stress, ASPC application increased sugarcane juice quality, which is determined by sucrose content, purity, TRS, reducing sugar content, and fiber percentage [85]. Higher sucrose content in the stalks improves raw material quality, as increases in sucrose are associated with decreases in glucose and fructose (reducing sugars) and help boost juice purity above the minimum of 80% required by the industry for sugarcane milling [86,87]. Although fiber content is negatively correlated with juice purity, the increase in fiber content in the ASPC treatment (Figure 4C) did not reduce the sucrose concentration.…”