摘要
以菜用豌豆为材料,研究其种子萌发期对不同浓度中性盐(NaCl)和碱性盐(NaHCO3)溶液的响应差异。结果表明:当NaHCO3溶液浓度达到25 mmol/L时,菜用豌豆的种子萌发和幼苗生长受到抑制,当浓度升高到200 mmol/L时,种子完全不能萌发;当NaCl溶液浓度为25 mmol/L时,反而可以提高种子活力指数,促进幼苗主根和芽的生长,当NaCl溶液浓度高达100 mmol/L后,菜用豌豆的种子萌发和幼苗生长受到抑制。因此,NaHCO3比NaCl对菜用豌豆种子萌发生长的抑制作用更为明显,其在土壤中积累后对豌豆栽培影响更显著。
The responses of vegetable peas on neutral salt NaCl and alkaline salt NaHCO3 stresses during seed germination with gradient concentrations of NaCl and NaHCO3 solution were studied in this paper.The results showed that the seed germination and seedling growth of vegetable pea were inhibited while the concentration of NaHCO 3 solution reached 25 mmol/L;moreover,the seeds could not germinate when the concentration of NaHCO3 solution was 200 mmol/L;however,the coefficient of seed vigor was increasing,and the growths of pea seedling main root and bud were promoted while the concentration of NaCl solution was 25 mmol/L,the seed germination and seedling growth of vegetable pea were not inhibited until the concentration of NaCl solution over 100 mmol/L.Therefore,the alkaline salt NaHCO3 is more obvious than the neutral salt NaCl to inhibit the vegetable pea germination;the NaHCO3 has more obvious effect on vegetable pea cultivation when it accumulates in soil.
作者
张凤银
胡江梅
陈禅友
ZHANG Fengyin;HU Jiangmei;CHEN Chanyou(School of Life Sciences,Hubei Province Engineering Research Center of Legume Plants,Jianghan University,Wuhan 430056,Hubei,China)
出处
《江汉大学学报（自然科学版）》
2020年第3期14-19,共6页
Journal of Jianghan University：Natural Science Edition
基金
湖北省技术创新专项重大项目(2017ABA147)
湖北省豆类(蔬菜)植物工程技术研究中心开放基金项目(2014-06)。
关键词
菜用豌豆
盐胁迫
种子萌发
幼苗生长
vegetable peas
salt stress
seed germination
seedling growth
