The building,management and its practical effect of the seed production base for two-line hybrid rape of Qianyou series are summarized,and the suggestion to solve the existing problems is put forward at the same time.

Studies on Model of high-yield culture for hybrid rape Wanyou25;

Breeding of yellow hybrid rape Qianhuangyou 21 with double-low content;

Adaptability of newly-bred hybrid rape combinations in Yunnan;

Analysis of yield stability of hybrid rapeseed with HSC procedures and stability parameters;

In this experiment hybrid rapeseed seeds were used as materials to analyze and compare the differences of glutenin electrophoregrams sodium dodecyl sulfate-polyacrylamide gelelectrophoresis(SDS-PAGE)and acid polyacrylamide gel electrophoresis(A-PAGE).

In order to improve the rape output and oil yield, Jiangsu Institute of Agricultural Science in the Lixiahe District used rapeseed cytoplasm male-sterile line, success to breed the new hybrid rapeseed variety, Yangyou NO.

A High-yield Cultural Model of Hybrid Rape Wanyon No.9;

From 1999 to 2002,by combining plot experiments with field demonstration and apllying the research of controling multiple points and multiple factors(sowing time and sowing density),the results show that,if hybrid-rape is early sown with the effective cultivation of ultra-low density,the net profit is 328 715 yuan/hm~2 more than it is late sown with the cultivation of ultra-high density.

Seed quality is core of seed production of hybrid with recessive genic male sterile in B.