Eder Marcos da Silva's research while affiliated with Centro Universitário de Lavras and other places

... We say "can," because reductions in the parameters of plant growth and production are potentially influenced by multiple factors, including the intensity and duration of drought conditions, phenological stage, soils condition, species, climate, and genetic material (Araus et al. 2012;Magalhães and Durães 2008;Abd El-Mageed et al. 2022). However, extremely intense water restriction during the reproductive stage can reduce grain yields by more than 55% (Assefa et al. 2010;Avila et al. 2021;Mubarak et al. 2021;Salem et al. 2021). ...

... Among the treatments, maize plants exposed to 140 mg L −1 of chitosan foliar application exhibited similar behavioral responses to plants growing in a favorable watering condition. These favorable results are attributed to the high level of antioxidant enzyme activity and gas exchange and the low amounts of hydrogen peroxide and lipid peroxidation [298]. ...

... Water-deficit commences with a reduction in the water potential of plant tissues (Avila et al. 2020;Lavinsky et al. 2015;El-Bially et al. 2022;Saudy et al. 2022a), which generates metabolic disturbances that in turn negatively influence plant growth and development ). Among these changes, the most notable are the reductions in hydraulic conductivity (Liu et al. 2015) and photosynthetic rate (Avila et al. 2016(Avila et al. , 2020; an increase in the production of reactive oxygen species (ROS) (Avila et al. 2021;Gill and Tuteja 2010); reduced nutrient uptake (Garg 2003;Saudy and El-Metwally 2019); perturbation of the balance between the synthesis and degradation of photosynthetic pigments; accelerated leaf senescence; and, consequently, a reduction in photosynthetically active leaf area, reduced growth, and lower grain yield (Farooq et al. 2009;Avila et al. 2020;Saudy et al. 2022b). ...

... Chlorophyll a fluorescence provides detailed evidence on the absorption status and use of light energy by the reaction centres of photosystem II (PSII), and can also detect possible damage to the photosynthetic apparatus, providing parameters for the monitoring of the physiological conditions of plants under abiotic stress [25]. Gas exchange parameters can also provide insights into situations of stress, which may result in a reduction in productivity (e.g., [26][27][28]). As the methods used to measure fluorescence and gas exchange are non-invasive and non-destructive, they can be used to monitor the plant over long periods, providing more reliable inferences for the testing of hypotheses [29]. ...