Breeding of Youyan 1220,a Hybrid Rape Variety with High Yield,Oil and Protein Conuent and Low Erucic Acid and Glucosinolate Content

Youyan 1220 with high yield,oil and protein content,low erucic acid and glucosinolate content was bred from 8078A×0202R.The average yield and producing oil amount was 167.88 kg/667m2 and 70.72 kg/667m2,7.0% and 13.87% higher than CK respectively during 2004～2006.The erucic acid,glucosinolate,oil and protein content are 0.6%,28.28 μmol/g,44.03% and 26.85% separately.The key breeding technique for selecting varieties with higher rate of oil content and higher protein content includes selecting the trans-parents with higher rate of oil content and higher protein content and strengthening the directive selection of parents in rate of oil content and protein content in the segregation generations.