NaCl和Na2SO4对毛酸浆种子萌发及生长的影响
Effect of NaCl and Na2 SO4 on Germination and Growth of Physalis pubescens Seeds
刘佳慧 1宗宪春 1汪雨欣1
作者信息
- 1. 牡丹江师范学院生命科学与技术学院,黑龙江 牡丹江 157011
- 折叠
摘要
研究以毛酸浆为实验材料,采用不同浓度梯度的 NaCl(0、50、100、150 和 200 mmol/L)和 Na2 SO4(0、50、100、150 和 200 mmol/L)的盐溶液对毛酸浆种子分别处理,分析不同浓度的两种盐溶液对毛酸浆种子萌发及生长的影响,并计算出毛酸浆种子的发芽率、发芽势、发芽指数以及活力指数,测定叶片中过氧化物酶(POD)、过氧化氢酶(CAT)、丙二醛(MDA)的生理生化指标.研究结果表明:不同浓度的两种盐溶液对毛酸浆种子萌发均有抑制作用,对叶片中的生理生化指标也均有显著影响,且当盐溶液浓度增大时,对种子的发芽率、发芽势抑制效果更强.Na2 SO4 的盐溶液的抑制作用比 NaCl盐溶液的抑制效果强.随着盐溶液浓度的增加,丙二醛(MDA)的含量相对于对照组都呈现出先减少后增多的趋势,而过氧化物酶(POD)和超氧化物歧化酶(SOD)的含量基本相同,均表现为先增多后减少的趋势,但均高于对照组.
Abstract
Physalis pubescens seeds were treated with NaCl(0,50,100,150 and 200 mmol/L)and Na2 SO4(0,50,100,150 and 200 mmol/L)with different concentration gradients,and the effects of the two salt solutions on the germina-tion and growth of Physalis pubescens seeds were analyzed.The results showed that the two kinds of salt solutions with different concentrations inhibited the germination of Physalis pubescens seeds,and had significant effects on the physiological and biochemical indexes of leaves.When the concentration of salt solution increased,the inhibition effect on the germination rate and germination potential of seeds was stronger.And the inhibitory effect of Na2 SO4 salt solution was stronger than that of NaCl salt solution.With the increase of salt solution concentration,the content of malondialdehyde(MDA)decreased at first and then increased,while the contents of peroxidase(POD)and superox-ide dismutase(SOD)were basically the same,both showed a trend of increasing at first and then decreasing,but both were higher than those of the control group.
关键词
毛酸浆/盐胁迫/萌发/生理生化指标Key words
Physalis pubescens/Salt stress/Germination/Physiological characteristics引用本文复制引用
基金项目
黑龙江省教育厅新农科专项(SJGZ20200177)
黑龙江省教育厅项目(SJGY20180525)
黑龙江省教育厅项目(SJGY20200731)
出版年
2024
国家科技期刊平台
NSTL
万方数据