【摘要】 二色胡枝子种子硬实性与种子形态差异有明显相关。黑色种子粒级大，千粒重高，种子硬实率达６０．０％，褐色种子粒级小，千粒重低，种子硬实率为２５．３９％。采用多种方法解除硬实效果表明，９０℃热水浸泡种子３０ｍｉｎ左右能起到解除硬实，提高发芽率的效果，硬实解除后黑色种子发芽率（９５．０％）高于褐色种子发芽率（８５．０％），初步认为，种子颜色差异是种子成熟度不同造成的，或者是色素在种皮中的堆积度不同造成的。更多还原

【Abstract】 There are differences in the morphological characters and inhardseedednests of Lespedeza bicolor Turcz seeds.Seeds of black testa i1re big. Hard seedpercentage is 60.0%;Seeds of brown testa are small.Hard seed percentage is 25.3%.Several methods of breaking hard seeds were tested and the results showed that soakingseeds at 90℃ hot water for 30 minuts can break hard seed and increase germinationpercentage.After breaking hard seeds,the germination percent age(95.0%)of seedswith black testa was higher than that of seeds with blown testa(85.0%).The trialshowed that the differences in seed maturity brought abu the characters of testa,更多还原