Effect of NaCl and NaHCO₃ Stress on Seed Germination of Celosia cristata L.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of NaCl and NaHCO₃ Stress on Seed Germination of Celosia cristata L.

Author(s):: PEI Yi; NIE Jiang-li; LIU Hui-jia; CHEN Jun-mei; Tianjin Agricultural University，Tianjin 300384

Abstract:: Using the method of germination in petri dish,germination rate,germination potential,relative germination rate,relative salt injury rate,germination index and vigor index were studied during the germination of Celosia cristata L.seeds which were stressed by NaCl and NaHCO3.The results showed that NaCl concentration and NaHCO3 concentration had an effect on germination rate,germination potential,relative germination rate,germination index and vigor index of Celosia cristata L.seeds.Specifically,low concentration promoted germination,high concentration inhibited germination and the concentration above 4‰ showed a significant negative correlation.The optimal,critical and limit value of NaCl concentration that affects relative germination rate was 5.66‰,7.48‰ and 9.29‰ and these of NaHCO3 concentration was 7.55‰,11.07‰ and 14.58‰.The results suggested that seeds stressed on higher concentration of NaCl and NaHCO3 still had greater germination capacity especially,it showed the seeds of Celosia cristata L.had stronger resistance to salt alkali．

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Last Update: 2014-12-12