[Objective] The aim was to determine the difference in sucrose content of different tartary buckwheat sources,so as to screen low-sucrose buckwheat materials.[Method] The sucrose contents of 35 tartary buckwheat materials from different regions were measured.[Result] The sucrose content of the 35 tartary buckwheat materials varied from 0.007 7% to 0.208 9% with an average of 0.051 8%.There was some difference among the tartary buckwheat materials from different regions.The seeds from Hezhang in Guizhou had higher sucrose content,while the seeds from Nayong in Guizhou had lower sucrose content.[Conclusion] The content of sucrose was significantly low in tartary buckwheat,which could be popularized as a kind of low-sugar crop.
[Objective] This study aimed to finding out the difference in glucose content of tartary buckwheat seeds from different origins.[Method] Taking 35 kinds of tartary buckwheat from different origins as the test materials,the glucose content of seeds had been determined.[Result] The variation range of glucose content in 35 kinds of tartary buckwheat was from 0.055 6% to 0.840 2% with an average of 0.321 7%.There was a difference in glucose content of tartary buckwheat from different origins.The seeds T324 from Weining in Guizhou had the highest glucose content,while the seeds T398 also from Weining in Guizhou had the lowest glucose content.[Conclusion] This study provides a reference for the genetic variation law of glucose content in different tartary buckwheat resources.
[目的]筛选保健功能较好的荞麦资源。[方法]以35份荞麦资源为试验材料,测定了其籽粒的持水力和膨胀力。[结果]35份苦荞材料的持水力变化幅度在248.5%~341.4%,平均值为283.0%,以T324的持水力最高;膨胀力变化幅度在0.50~1.50 m l/g,平均值为1.05 m l/g,以T463的膨胀力最大。[结论]该研究为筛选优质苦荞品种及进行大面积推广提供了理论依据。
