Effects of Different Priming Treatments on Seed Germination of Bromus inermis under Salt Stress
To alleviate the effects of salt stress on seed germination and improve seed germination abili-ty under salt stress,Bromus inermis Leyss.'Wusu No.1 was used as the experimental material,NaCl concentration was set at 150 mmol/L.Water priming,different concentrations of melatonin(MT)priming,different concentrations of PEG-6000 priming and vermiculite priming were used to explore the effects of different priming treatments on seed germination of Bromus inermis under salt stress.The results showed that the germination rate,germination potential,vitality index,germination index of Bromus inermis seeds could be improved by priming treatments under salt stress.Only 50 μmol/L MT priming and vermiculite priming reduced the average germination time of Bromus iner-mis seeds.According to the membership function analysis,50μmol/L MT had the best effect on the germination rate,germination potential,vitality index,germination index,increased by 42%,40%,19 and 83 respectively compared with ck,followed by vermiculite.
salt stressBromus inermis Leyss.'Wusu No.1'priming treatmentseed germination
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