2024 Volume 68 Issue 1 Pages 1-6
To evaluate the variations of amylose content in the seed storage starch of Tartary buckwheat germplasm, we analyzed a total of 286 accessions from Nepal, China, Bhutan, Japan, Russia, Belarus, Slovakia, Estonia, and so on. As a result, these widely varied from 16.07% to 31.91%. By country, Nepal showed the widest variation (16.07% - 29.01%), followed by China (19.70% - 26.28%), Bhutan (19.38% - 26.88%), Japan (24.12% - 31.91%), and other countries (23.96% - 28.28%), although the largest number of accessions used from Nepal (n=184) should be taken into consideration. We expected to find a waxy accession or a waxy mutant from them but could not. For 164 of the 184 accessions from Nepal, information was obtained on the collection site, ranging from 950 to 3,800 m. There was a significant negative correlation between altitude and amylose content. Some of the lowest amylose accessions obtained in this study were also considered useful as breeding materials. Further clarification of their starch properties will increase their value as a new food material.
