Mung bean (Vigna radiata L.) is an important crop contributing to global food security. However, its productivity is severely affected by drought stress, particularly during the growth and grain filling stages. Drought stress reduces yield components such as pod number, seeds per pod, and grain weight due to disruptions in physiological and metabolic processes. It also negatively impacts crop quality by limiting nutrient accumulation and grain development. Potassium plays an important role in increasing plant tolerance to drought stress through various mechanisms. At the physiological level, potassium increases the efficiency of photosynthesis, regulates stomatal function, and maintains cellular osmotic balance, allowing plants to maintain turgor and metabolic activity under conditions of water deficit. At the biochemical level, potassium activates antioxidant enzymes that mitigate oxidative damage caused by reactive oxygen species. Furthermore, potassium supports the translocation of assimilates from source to recipient organs, thus promoting pod formation and grain filling. Adequate potassium supply also improves crop quality, including better nutrient content and grain uniformity. The interaction between potassium and water availability exhibits a synergistic effect, with optimal potassium levels increasing water use efficiency and mitigating the negative impacts of drought stress. Therefore, proper potassium management combined with efficient irrigation strategies is crucial for maintaining mung bean productivity and quality under drought conditions, thus supporting a more adaptive and sustainable agricultural system.
Zavira Nurul Rachmaniar, Eka Kartina, Aep Wawan Irwan et al.· Gunung Djati Conference Seri...· 0 citations
Mung bean (Vigna radiata L.) is an important legume crop that plays a strategic role as a source of plant-based protein, a functional food ingredient, and an adaptive crop widely cultivated in various tropical and subtropical regions. Mung bean are a legume crop with high agronomic potential, mung bean productivity still faces several challenges, particularly due to climate change and rainfall patterns. These environmental changes can reduce water availability in agricultural lands and increase the risk of drought stress. Low water availability is one of the primary limiting factors in mung bean cultivation because it impedes overall plant performance, such as growth, phenological development, and physiological functions. Water deficit can disrupt plant biological processes through reduced tissue water status, impaired nutrient uptake and distribution, decreased metabolic activity, and increased oxidative stress, which eventually leads to reduced productivity. Under drought stress conditions, potassium (K) plays a crucial role as an essential nutrient that helps improve plant tolerance to water limitations. Potassium contributes to maintaining osmotic balance, improve water use efficiency, support physiological stability, and strengthening plant adaptation mechanisms against drought stress. Therefore, proper potassium management can be a potential strategy to improve mungbean resilience and maintain plant performance under low water availability conditions.
Eka Kartina, Zavira Nurul Rachmaniar, Aep Wawan Irwan et al.· Gunung Djati Conference Seri...· 0 citations
Global food security is increasingly threatened by abiotic stresses, particularly waterlogging, which poses significant challenges to cereal crop production. Waterlogging is one of the primary abiotic stresses that significantly influence the interrelationships among plant physiology, growth, and yield. This review aims to examine the relationships among these three aspects in cereal crops, with an emphasis on the response mechanisms to waterlogging stress. Findings from the reviewed literature indicate that waterlogged conditions induce hypoxia in the root zone, leading to reduced photosynthetic rates, impaired nutrient uptake, and increased production of reactive oxygen species (ROS), which trigger cellular damage. These effects result in reduced plant growth and yield. Nevertheless, plants exhibit various adaptive mechanisms, such as aerenchyma formation, adventitious root development, and proline accumulation, which enhance tolerance to stress. Variations in tolerance levels among cereal species also influence the extent of yield reduction. Overall, improving plant tolerance to waterlogging stress requires an integrated approach through physiological understanding, genetic improvement, and the application of appropriate agronomic management.
Erlinda Diantini, Hidya Nurlita, Aep Wawan Irwan et al.· Gunung Djati Conference Seri...· 0 citations
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