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本研究从栽培学角度研究了甘肃河西走廊地区板蓝根由于当年抽薹,造成产量降低、药用根严重木质化、药用价值降低等问题。为此安排品种与栽培试验6项,寻找该地区板蓝根当年抽薹的原因及解决办法,同时确定适宜品种、播期、密度、施肥及栽培方式。结果表明:当年播种后抽薹的板蓝根母根所收获的种子种植后抽薹率达35%,是造成板蓝根当年播种当年抽薹的主要因子,同时证明当年抽薹的种子是受遗传作用,种子在收获时已经部分完成春化;过早播种是造成板蓝根提前春化当年抽薹的次要因子。
In this study, the cultivation of Radix isatidis in Gansu Hexi Corridor due to the current year bolting, resulting in reduced production, medicinal roots of serious lignification, lower medicinal value and other issues. To this end, 6 varieties and cultivation experiments were arranged to find out the reasons for the bolting in the region and their solutions, and to determine the suitable varieties, sowing date, density, fertilization and cultivation methods. The results showed that the bolting rate of bollworm root seeding after sowing in the current year was 35%, which was the main factor of bolting in the year of sowing of Radix Isatidis. At the same time, it was proved that the seeds of bolting in that year were genetically influenced, and the seeds had already been harvested Part of the completion of vernalization; premature sowing is caused by the early spring vernal bolting secondary factor.