摘要
用质量浓度为100-1000μg/mL的La（NO3）3溶液处理48 h达乌里胡枝子Lespedeza davurica种子来研究其种子活力、种子吸水速率和膜透性。结果表明：质量浓度为200-800μg/mL的La（NO3）3溶液浸种可促进达乌里胡枝子种子的萌发,提高种子活力,提高种子相对吸水量,增大膜通透性;质量浓度为700-800μg/mL的La（NO3）3处理效果最佳,质量浓度大于900μg/mL则抑制种子萌发。
Lespedeza davurica seeds were soaked in La（NO3）3 solution with concentrations of 100- 1 000 μg/mL for 48 h to study the seeds vigor, seeds water absorbing rate and membrane permeability. The results showed that the treatment with concentrations of 200-800 μg/mL could accelerate germination and improve seeds vigor, relative water intake capacity and membrane permeability of L. davurica. The treatment of 700 -800 μg/mL La（NO3）3 was the best and beyond 900 μg/mL concentrations treatment would inhibit the germination.
出处
《草业科学》
CAS
CSCD
北大核心
2009年第9期170-172,共3页
Pratacultural Science
基金
山西农业大学科技创新基金项目(2004022)
