我国小豆种质资源的豆沙特性评价与筛选

对450份小豆种质资源进行了豆沙特性的评价,以期为培育豆沙专用品种提供信息。结果表明,不同小豆种质在出沙倍数、皮含量、湿沙颜色及淀粉细胞直径、壁厚等方面均存在一定差异。其中出沙倍数的变异范围为1.97~3.51,平均为2.51倍;皮含量的变异在7%~21%之间,平均为9%;湿沙的亮度值的变异在9.48~34.38之间,平均为29.6;红色度和黄色度的变异范围分别为16.56~34.27、-1.71~17.86,平均分别为21.5、11.8。不同种质间淀粉细胞大小也存在较大差异,其中直径、周长的差异均在2倍以上,而壁厚的差异达20余倍。上述沙用指标在种质间的变异说明,豆沙专用品种的选育是必要且可行的。根据研究结果,筛选出豆沙特性指标均较好的小豆种质20份,有望为豆沙专用品种的培育奠定基础,保障豆沙生产的经济效益和食品安全等问题。

Evaluation and characterization of adzuki bean germplasm for paste production

(Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081) Abstract: 450 accessions of adzuki bean germplasm were accessed by bean paste indictors, to provide information for breeding new varieties specially used for bean paste production. The results showed that the rates of paste production and seed coat, color, and cell characters of starch varied greatly among different germplasm. The rate of paste production varied from 1.97~3.51 with an average of 2.51. The rate of seed coat varied from 7%-21% with a mean value of 9%. The light intensity L varied from 9.48-34.38 with an average of 29.6. And intensity values of rRed and yellow densities varied from 16.56~34.27 and-1.71~17.86, with average values of 21.5 and 11.8, respectively. A fairly There are also diverse values on the sizes of starch cell, especially the thickness of cell wall. These results indicated the difference among varieties on bean paste production. Based on those indictors, 20 adzuki bean germplasm that suitable for bean paste production were determined and they will play important role in breeding new varieties for paste production.