International Journal of Horticulture, 2024, Vol.14, No.6, 355-367 http://hortherbpublisher.com/index.php/ijh 364 Improving the nutritional quality of rapeseed through genetic approaches is another key area of focus. By leveraging modern biotechnological tools, researchers are working to enhance the oil and protein content of rapeseed. This includes the use of marker-assisted selection and genetic modification to introduce desirable traits. Enhanced oil and protein content not only increases the economic value of the crop but also meets the growing demand for high-quality edible oils and animal feed (Khan et al., 2021; Wolko et al., 2022). 9 Concluding Remarks This study emphasizes the key agronomic factors affecting rapeseed yield and quality, highlighting the interactions between management practices, environmental conditions, and genetic factors. Climate variables such as precipitation and relative humidity during specific growth periods are critical in determining yield and oil content. Socioeconomic factors, including rural electricity consumption and effective irrigation area, play a significant role in yield variation, particularly impacting winter rapeseed yields. Additionally, the application of sulfur and boron fertilizers significantly improves seed and straw yield, as well as oil and protein content. In high-altitude regions, extended daylight hours prolong the grain development period, thereby supporting higher yields. Based on research findings, several measures are recommended to optimize rapeseed yield and quality. Effective weed and drainage management should be prioritized as they help reduce yield gaps. During critical growth stages, water supply and temperature control should be aligned with specific climate conditions to enhance yield. Socioeconomic factors also play a significant role; improving rural infrastructure and expanding irrigation coverage can contribute to yield stability. In terms of fertilizer management, applying sulfur and boron based on soil conditions can improve nutrient use efficiency and enhance rapeseed quality. Breeding programs should focus on developing high-yield varieties adapted to specific ecological environments, especially in high-altitude regions with extended daylight hours. To address climate change, crop management strategies should optimize the utilization of cumulative daylight exposure. Integrating advanced genetic techniques is equally essential, with further application of QTL mapping and GWAS recommended to identify and harness genetic markers associated with high yield and quality traits. The optimization of rapeseed yield and quality is a multifaceted challenge that requires a comprehensive approach, integrating agronomic practices, climatic considerations, socio-economic factors, and genetic advancements. By addressing these key factors, it is possible to significantly enhance rapeseed production, thereby contributing to global food and energy security. Future research should continue to explore the complex interactions between these factors and develop innovative solutions to meet the growing demand for rapeseed and its derived products. Acknowledgments This thesis was completed under the guidance of my advisor, Professor Cai Renxiang. I am deeply grateful to Professor Cai for his multiple reviews of this paper and for his constructive revision suggestions. I would also like to thank the two anonymous peer reviewers for their valuable comments and recommendations. Conflict of Interest Disclosure The authors affirm that this research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest. References Basumatary A., Bhupenchandra I., Chauhan S., Choudhary A.K., and Goswami K., 2022, Synergistic influence of sulphur and boron fertilization on enhancing the productivity of rapeseed (Brassica napus L.) and nutrient status in subtropical acidic soil of Assam, India, Communications in Soil Science and Plant Analysis, 53(12): 1498-1517. https://doi.org/10.1080/00103624.2022.2055052 Basumatary A., Chauhan S., Bhupenchandra I., Das K.N., and Ozah D.J., 2021, Impact of sulfur and boron fertilization on yield, quality of crop and nutrient use efficiencies in rapeseed in subtropical acidic soil of Assam, India, Journal of Plant Nutrition, 44(12): 1779-1793. https://doi.org/10.1080/01904167.2021.1884708
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