关键词: 菜用豌豆, 盐胁迫, 种子萌发, 幼苗生长

Abstract: The responses of vegetable peas on neutral salt NaCl and alkaline salt NaHCO₃ stresses during seed germination with gradient concentrations of NaCl and NaHCO₃ solution were studied in this paper. The results showed that the seed germination and seedling growth of vegetable pea were inhibited while the concentration of NaHCO₃ solution reached 25 mmol/L；moreover，the seeds could not germinate when the concentration of NaHCO₃ solution was 200 mmol/L；however，the coefficient of seed vigor was increasing，and the growths of pea seedling main root and bud were promoted while the concentration of NaCl solution was 25 mmol/L，the seed germination and seedling growth of vegetable pea were not inhibited until the concentration of NaCl solution over 100 mmol/L. Therefore，the alkaline salt NaHCO₃ is more obvious than the neutral salt NaCl to inhibit the vegetable pea germination；the NaHCO₃ has more obvious effect on vegetable pea cultivation when it accumulates in soil.

Key words: vegetable peas, salt stress, seed germination, seedling growth