Sunmang' is a new rapeseed (Brassica napus L.) of F₁ hybrid with high yield and high quality for oil and meal. This hybrid was developed from the cross between Mokpo-CGMS (male sterile line) and 84055-B-10-3-1-6 (restore line) in 1996. It was a

Rapeseed as a partial allogamous crop(allogamy rate : 25~75%) displays depression by continuous selfing. Therefore, it is essential to produce F1 hybrids with high yield using cytoplasmic genetic male sterility(CGMS). This breeding system needs to develop

The aim of this project was to produce pure seed which F₁ hybrids were very excellent in yield components with hybrid vigour. The work was carried out to produce the seeds with maintenance of purity in an isolated P.E. film house, to investigat