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一、甜菜种株的生育甜菜母根(供采种用的块根)冬季在低温(0℃上下)贮藏20—60天,根头上生长点的一些有机物质经过一系列的质变,形成能抽苔的“春化素”,即通过了
First, the growth of beet species Beet root (for the seed used in planting) in winter at low temperature (0 ℃ up and down) storage 20-60 days, the growth of the root of some organic matter through a series of qualitative change, the formation of bolting The “vernalized prime” that passed