Changes in antioxidant enzymes, germination capacity and vigour of tomato seeds in response of priming with polyamines

This paper depicts the role of polyamines as priming agents on germination, seedling vigour and anti-oxidative responses of tomato seeds. Priming was achieved by exposing fresh seeds of tomato cultivars Roma and Nagina to 50 mg/L. Putrescine (Put), 50 mg/L Spermine (Spin) and 50 mg/L Spermidine (Spd) aerated solutions for 24 h. Priming with Spm and Spd improved sced germination. seedling vigour and enhanced anti-oxidative activity. However, priming with Put failed to improve seed vigour which relates to the decreased anti-oxidative activity in tomato seeds.