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根据四倍体甜菜种株开花特性，采取花药于早6时前，人工杂交在6时30分后进行为宜。染色体倍数性鉴定应在6月初至6月中旬进行。可将日开花率达5％作为进入盛花期标准，盛花期为10天左右，此时期保证土壤水分至关重要。在盛花期后5天左右进行摘尖，以提高种子千粒重。早8～10时为种株日开花高峰期，是进行田间人工辅助授粉的最佳时期。
According to the flowering characteristics of tetraploid beet strains, it is advisable to take anther before 6:00 am and artificial cross after 6:30. Chromosome multiple sex identification should be carried out in early June to mid-June. May flowering rate of 5% as the flowering into the standard, flowering period of about 10 days, this period to ensure that the soil moisture is essential. Picking in about 5 days after flowering, in order to improve seed thousand kernel weight. As early as 8 to 10 as the peak flowering plant, is the best field artificial artificial pollination.