1. Plant growth substances: principles and applications;ARTECA R.D.,1996
2. Seeds: physiology of development and germination;BEWLEY J.D.,1994
3. Water relations analysis of seed germination rates;BRADFORD K.J.;Plant Physiology,1990
4. Seed development and germination;BRADFORD K.J.,1995
5. Regras para análise de sementes,1992