<![CDATA[This study aims to investigate and determine the optimal combination of photoperiod and vernalization treatments to accelerate flowering and enhance seed production in shallot (Allium cepa L.) under tropical conditions. The research employs a factorial experimental design incorporating two primary factors: photoperiod duration and the length of low-temperature exposure. The observed parameters include days to flowering, flowering percentage, number of flower stalks, flower production, seed formation, seed weight, and germination percentage. Data are analyzed using analysis of variance (ANOVA) to evaluate the individual and interactive effects of both treatments on the reproductive responses of shallot plants. The study is expected to identify an optimal combination of photoperiod and vernalization treatments that promotes the transition from vegetative to reproductive growth while improving seed yield and quality. The anticipated findings will provide a scientific foundation for developing effective environmental manipulation strategies to enhance shallot seed production in tropical regions. Furthermore, this research is expected to contribute to overcoming flowering constraints associated with naturally unfavorable temperature conditions and daylength, thereby supporting more efficient and sustainable shallot seed production systems.]]>
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