To investigate the physical characteristics of buckwheat (Fagopyrum esculentum Moench) seeds, ten physical characteristics of five buckwheat cultivars were researched on their seeds, shells and kernels. The results showed that buckwheat seed moisture percentage was 11.6%-13.4% and the size of more than 90% of buckwheat seed grains was 3.8-5.0 mm. The color values of L*, a* and b* in kernels were about 1.8 times, 1.7 times and 2.6 times higher than those in seeds, respectively. And then the thousand grain weight of buckwheat seeds and the volume weights of seeds and kernels were measured to be 27.1-37.2 g, 578-698 kg/m3, and 699-795 kg/m3 respectively. Moreover, specific weight of seeds, shells and kernels were also valuated to be about 1.11 g/cm3, 0.61 g/cm3 and 1.13 g/cm3, and the weight percentage of shell and kernel accounted for seeds was 13.8%-19.2% and 80.8%-86.2% respectively. In addition, the thickness of seed shells and the gaps between shells and kernels were found to be about 0.18 and 0.09-0.12 mm, and the. seed kernel hardness was measure to be 1.07-1.26 kg. Therefor, different buckwheat species showed relatively large differences in their seed moisture percentage, thousand grain weight, volume weight of seed and kernel, weight percentage of shell and kernel accounted for seeds, clearance between shell and kernel of seeds, and seed kernel hardness. Consequently, the commonality and specificity in seed physical characteristics among the different species might provide us some valuable information for the researches of the techniques and the adjustment of production process technologies in buckwheat hulling.

Publication Date


First Page


Last Page





[1] 徐树科. 荞麦的营养功能、应用及其脱壳工艺和设备[J]. 粮食与饲料工业, 2004(12): 17-19.
[2] 胡志超. 加强荞麦脱壳加工设备研究开发促进荞麦加工产业化发展[J]. 中国农机化, 2004(3): 11-13.
[3] 向达兵, 彭镰心, 赵钢, 等. 荞麦栽培研究进展[J]. 作物杂志, 2013(3): 1-6.
[4] 郭谊, 林保, 任宏霞, 等. 实验室条件下稻谷水分对整精米率的影响验证实验[J]. 粮食贮藏, 2008(3): 42-44.
[5] 杉本雅俊, 稲木幸夫, 今井徹. 福井県産ソバの性状と品質との関係[J]. 北陸作物学会報, 1993, 28: 81-84.
[6] KALINOVA J, VRCHOTOVA N. The influence of organic and conventional crop management, variety and year on the yield and flavonoid level in common buckwheat groats[J]. Food Chemistry, 2011, 127(2): 602-608.
[7] SOBHANI M R, RAHMIKHDOEV G, MAZAHERI D, et al. Effects of sowing date, cropping pattern and nitrogen on CGR, yield and yield component summer sowing buckwheat (Fagopyrum esculentum Moench)[J]. Journal of Applied Environmental and Biological Sciences, 2012, 2(1): 35-46.
[8] 张丽君, 马名川, 刘龙龙, 等. 山西省甜荞品种资源的研究[J]. 中国种业, 2014(6): 42-45.
[9] 刁斯琴, 杜文亮, 隋建民, 等. 剥壳间隙对荞麦整半仁率的影响规律[J]. 食品与机械, 2013, 29(3): 191-193, 221.
[10] 贾富国, 南景富, 白士刚. 糙米的含水率与其碾米性能的影响规律研究[J]. 东北农业大学学报, 2006, 37(5): 665-668.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.