Core Insights - The new rapeseed variety "Zhongyouza 501" developed by the Chinese Academy of Agricultural Sciences is set to achieve large-scale high yields with the accompanying "late sowing double density double high" technology [1][2] - The average yield in a demonstration field reached 341.47 kg per mu, approximately double the average yield in Sichuan province [1] - The annual planting area of rapeseed in China is around 117 million mu, making improvements in rapeseed yield crucial for ensuring edible oil supply security [1] Group 1 - "Zhongyouza 501" has an average oil content of 50.38% and an oil yield of 107.35 kg per mu, which is 26.93% higher than the control [1][3] - The "late sowing double density double high" technology addresses issues such as late spring cold damage and root swelling disease, allowing for sowing after October 10 [2] - The technology supports the expansion of rapeseed area, increases yield, and stabilizes production [2] Group 2 - "Zhongyouza 501" has been included in the 2024 agricultural leading varieties and the 2025 national excellent crop variety promotion directory by the Ministry of Agriculture and Rural Affairs [3] - The application of this technology in major rapeseed production areas is expected to alleviate land competition issues in the Yangtze River basin and increase rapeseed oil production by over a million tons annually [3] - The initiative aims to replace some imported soybean oil with low-erucic acid rapeseed oil, enhancing the health standards of edible oil for residents [3]