Fire is an important ecological and evolutionary factor affecting plant communities worldwide. After fire, plants can resprout or germinate and systems may differ according to their post-fire regeneration strategies. Therefore, the main aim of this study was to analyze the most important regeneration strategies in Brazilian subtropical grasslands. Moreover, we point out differences in seedlings and resprouts between burned and mowed plots, in order to detect differences in community response to different types of disturbance. We analyzed seven pairs of plots (burned and mowed) in two sites with different fire histories: FB – frequently burned grasslands, and E – exclusion of fire for six years. After treatments, vegetation was described and seedlings and resprouts were sampled. Plants were later grouped in species groups for statistical analyses. Less than 20% of established plants came from seedlings and only three species were obligate seeders. Most species resprouted after treatments. Number of seedlings and resprouts did not show significant differences between treatments in each site. However, a higher number of species with seedlings was observed in site FB. More new species with seedlings established in burned than mowed plots in site FB. Seedlings of forbs recruited more in burned than in mowed plots. Resprouter was the most important strategy for all studied species groups, particularly for graminoids. Our results show the importance of vegetative regeneration in the studied subtropical grasslands, independently of disturbance, and the importance of fire for the establishment of new species, maintaining thus, plant diversity.

火是影响全球植物群落的重要生态和进化因素。火灾后，植物可能会萌芽或发芽，并且系统可能会根据其火灾后的再生策略而有所不同。因此，本研究的主要目的是分析巴西亚热带草原上最重要的再生策略。此外，我们指出了烧毁耕地和割草耕地之间幼苗和新芽的差异，以检测社区对不同类型干扰的反应差异。我们在两个有不同火灾历史的地点分析了七对地块（已燃烧和被割除）：FB –频繁燃烧的草地，E –排除了六年的火灾。处理后，对植被进行了描述，并对幼苗和新芽进行了采样。随后将植物按物种分组，以进行统计分析。不到20％的成熟植物来自幼苗，只有3种是专性播种者。处理后大多数物种会繁殖。在每个站点的处理之间，幼苗和新芽的数量没有显示出显着差异。但是，在FB地带观察到更多种有幼苗的物种。与被砍伐的FB地块相比，在被烧毁的树苗上建立的新物种更多。在燃烧的情况下，被砍伐的草丛的幼苗比在被割的地块中被征召的树木更多。对于所有研究的物种组，特别是对于类动物而言，生殖器是最重要的策略。我们的结果表明，在研究的亚热带草原中，无障碍地进行营养更新的重要性，以及建立新物种，维持植物多样性的火势的重要性。