Response of seed germination of Trigonella foenum-graecum L.to drought stress
In this study,the seeds of different germplasms of fenugreek were used as the research object to explore the effects of differ-ent concentrations of drought stress on the germination indexes of Canadian fenugreek,Yunnan fenugreek,Gansu fenugreek and Qinghai fenugreek.The results showed that:With the increase of PEG concentration,the germination potential,radicle length,germ length and vigor index of Trigonella foenum-graecum L.seeds decreased.The germination indexes of the same germplasm were different in response to different concentrations of PEG stress.In the comprehensive evaluation results of germplasm×PEG drought stress,the drought resistance of Canadian fenugreek was the best when PEG was 10%,and the drought resistance of Canadian fenugreek was the worst when PEG was 25%.Conclusion:The increase of PEG concentration has an inhibitory effect on the seed germination of Trigonella foenum-graecum L.The ger-mination index of 10%PEG concentration was the best,and the germination index of 25%PEG concentration was the best.
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