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林木种子质量的评定通常是以净度、千粒重、含水率、发芽率等指标为依据的。然而,仅用以上指标表示种子的好坏是不完整也不深刻的,尤其是发芽率的测定结果不能全面反映种子的发芽速率及幼苗生长特性。因而,国外早在50年代初就提出了种子活力的概念。种子活力应包括种子的发芽速率、幼苗生长速率及种子对不良环境条件的忍受能力。种子活力是一个决定于基因型,而又受环境因素影响的生理特性。经过种子活力测
Forest seed quality assessment is usually based on clarity, grain weight, moisture content, germination rate and other indicators as the basis. However, using only the above indexes indicates that the seeds are neither perfect nor profound, especially the germination rate can not fully reflect the seed germination rate and seedling growth characteristics. Therefore, as early as the early 1950s, the concept of seed vigor was proposed. Seed vigor should include seed germination rate, seedling growth rate and seed tolerance to adverse environmental conditions. Seed vigor is a physiological characteristic that is determined by the genotype and is influenced by environmental factors. After the seed vitality test