Studies on High Quality Cultivated Techniques of Yellow Seed and Double-low Hybrid Rapeseed——Youyan No.9
Zhao Jixian et al (Guizhou Institute of Oil Crop, Sinan Guizhou 565109)
The experiment results showed that high quality cultivated techniques of yellow seed and double-low hybrid rapeseed-Youyan No.9 were:the suitable sowing date was September 4～11,the density was 9×10 4 plants per hectare, applied amount of nitrogen, phosphorus and potassium fertilizer were 180?kg,150?kg and 210?kg per hectare respectively. The suitable sowing date of direct sowing was September 25 to October 2. The density was 24×10 4 plants per hectare. Applied amount of nitrogen was 180 kg per hectare. The suitable cultivated measure can not only keep high quality, but also increase yield for the content of oil: 44.63%～45.00%, protein: 38.17%～38.38%, erucic acid: -0.10%～-1.75% and glucosinolate: 25.96～27.29?μmol/g. Correlation analysis was as follows: there was no significant correlation between glucosinolate and erucic acid, protein, oil content. There was significant negative correlation between erucic acid and protein, oil content. There was significant positive correlation between protein and oil content.