5种微量元素浸种对决明种子萌发及幼苗生长的影响

采用5种微量元素的不同浓度浸种处理决明种子,研究不同微量元素及浓度对决明种子萌发及幼苗生长的影响。结果表明:不同微量元素及浓度浸种处理对决明种子萌发及幼苗生长具有显著影响,10mmol/L的锌、0.2mmol/L的钼、0.15mmol/L的硼、10mmol/L、20mmol/L的铁处理对决明种子萌发及幼苗生长有显著促进作用;铜的3个处理及20mmol/L的锌、0.5mmol/L的钼、0.2mmol/L的硼处理表现出对种子萌发及幼苗生长的抑制作用。可见,适宜浓度的铁、锌浸种能够促进决明种子萌发及幼苗生长,又以10mmol/L的锌处理效果最佳。

Effects of Seed Soaking with Five Different Trace Elements on the Germination and Seedling Growth of Cassia obtusifolia

The study was aimed to evaluate the effect of different trace elements and concentrations on seeds germination and seedlings growth of Cassia obtusifolia by soaking with five trace elements in different concentrations. The result showed that different treatments have significant influence on seeds germination and seedlings growth. The treatments of 10 mmol/L Zn,0.2 mmol/L Mo,0.15 mmol/L B, 10 mmol/L and 20 mmol/L Fe showed significant promoting effects on seeds germination and seedlings growth. The three treatments of Cu and the treatments of 20 mmol/L Zn, 0.5 mmol/L Mo, 0.2 mmol/L B inhibited the seeds germination and seedlings growth in different levels. In conclusion, soaking with Fe or Zn in suitable concentration could promote the seeds germination and seedlings growth, and the effect of 10 mmol/L Zn is the best.