1 results about "Open pollination" patented technology

This invention relates to the field of rapeseed breeding technology, specifically to a method for selecting "double-low" Chinese rapeseed varieties based on open pollination. The method involves: hybridizing high-erucic acid, high-glucosinolate parent lines with low-erucic acid, low-glucosinolate parent lines to create F1 hybrid combinations; isolating the F1 generation for propagation and open pollination to obtain the F2 generation segregating population; isolating the F2 generation for propagation, selecting individual plants, and determining erucic acid and glucosinolate content; retaining "double-low" individual plants for open pollination based on erucic acid and glucosinolate results to obtain F3 generation seeds; subsequent generations are planted under isolated propagation conditions, and selection is performed within each generation using open pollination according to breeding objectives until genetic equilibrium is reached. The advantages of this invention are: (1) improved selection efficiency and accuracy of erucic acid and glucosinolate traits in Chinese rapeseed; (2) the selected low-erucic acid, low-glucosinolate breeding populations are not generated through self-pollination; (3) improved selection efficiency of other important agronomic traits in Chinese rapeseed.