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ABSTRACT
Previous studies have indicated that seed pre-treatment can enhance germination parameters even under simulated microgravity conditions. This study focuses on the germination phase of plant development, which serves as the foundation for a plant's life cycle and significantly influences its overall growth and productivity. Specifically, we investigate the impact of simulated microgravity on the germinability and germination potential of hybrid maize seeds. Through clinorotationinduced enhancements in imbibition percentage, we observe notable alterations in germination time and vigor compared to control conditions. While existing literature presents mixed findings regarding the effects of microgravity on germination parameters, our study aims to contribute nuanced insights into the specific responses of hybrid maize seeds under simulated microgravity. Building upon previous research indicating the potential for microgravity to enhance root growth and stem development, we delve into the underlying mechanisms governing these responses. Our findings reveal significant impacts on root length, secondary root formation, and stem cell proliferation, suggesting promising avenues for optimizing plant growth both in space habitats and terrestrial environments. Additionally, we investigate the metabolic turnover of cell wall constituents and its implications for seedling weight and morphology under microgravity conditions. Utilizing advanced imaging techniques and molecular analyses, our research aims to unravel the complex interplay between gravity perception mechanisms and seedling growth dynamics. By enhancing our understanding of plant adaptation to altered gravity environments, this study contributes valuable insights for optimizing crop productivity and sustainability in space agriculture as well as traditional farming practices on Earth.
