TTc法是测定种子生活力和活力的重要方法,在生产和科学实践中。可以根据试验要求的精确程度,选用TTc图形法和TTc定量法。TTc定量法可弥补图形法的不足,从定量上来判别种子活力的高低。能用于评价目测难以判别的染色差异。这种方法在国外(特别是如印度等一些国家)应用较多,国内这方面的工作也在逐步开展。中国科学院北京植物园徐本美等在《种子》1982第二期上专门介绍了TTc定量法,美国俄勒冈州立大学邹德曼教授1984年 TTc method is an important method to determine the viability and vitality of seed in production and scientific practice. According to the accuracy of the test requirements, the choice of TTc graphics and TTc quantitative method. TTc quantitative method can make up for the lack of graphics method, quantitatively determine the level of seed vitality. Can be used to evaluate visually difficult to distinguish the dyeing difference. This method is applied more abroad (especially in some countries like India) and the work in this area in China is gradually being carried out. Xu Benmei et al., Beijing Botanical Garden, Chinese Academy of Sciences, specially introduced the TTc quantification method in the second issue of “Seed” 1982, and Professor Zou Deman, Oregon State University, 1984