关键词: 多胺, 多胺

Abstract:

The materials used in the study were tomato seeds and tomato seedlings which were treated by the low concentration at 0.05%、0.10%、0.20% and 0.40% of sea brine. It was studied germinability and germination rate of tomato seeds compared with distilled water and 0.40% NaCl treatments, and studied stem length, natural weight, dried weight, leaf conductivity, leaf MDA content and leaf PRO content of tomato seedlings compared with 0.40% NaCl, 0.60% NaCl and Hoagland’s nutrient solution treatments. The results showed that the treatments of concentration at 0.05% and 0.10% could improved germinability and germination rate of tomato seeds to a certain extent, increased stem length, natural weight, dried weight of tomato seedlings, effectively reduced leaf conductivity and made little effects on MDA content and PRO content of tomato leaf, and had no negative effects on seeds and seedlings of tomato. The treatments of concentration at 0.20% and 0.40% had no clear effects on germination of tomato seeds and had negative effects on growth of tomato seedlings, and its negative effects more lower than which caused by NaCl at the same concentration.