To investigate the effect of drought stress on the growth of Indigofera stachyodes seeds and seedlings after 4℃cold storage,a drought stress experiment was conducted on I.stachyodes seeds under different drought environments.The results showed that with the increase of PEG-6000 concen-tration,the germination rate,germination potential,and germination index of the seeds decreased.With the increase of PEG-6000 concentration,the seedling length,main root length,number of fibrous roots,and fresh weight of I.stachyodes seedlings showed a trend of first increasing and then decreasing.Comprehensive analysis showed that the germination rate of I.stachyodes seeds was sig-nificantly inhibited with the increase of PEG-6000 concentration.When the PEG-6000 concentration reached 25%,the germination ability of I.stachyodes seeds was completely inhibited.When the PEG-6000 concentration was 5%to 10%,it promoted the growth and development of I.stachyodes seed-lings.
维普
万方数据