NaCI胁迫下氯化钙对芥蓝种子萌发特性的影响

打开文本图片集

关键词盐胁迫；氯化钙；芥蓝；种子萌发；幼苗生长中图分类号 S636 文献标识码A文章编号 0517-6611（2025）17-0048-04doi：10.3969/j.issn.0517-6611.2025.17. 012

开放科学（资源服务）标识码（OSID）：

Effect of Calcium Chloride on Seed Germination Characteristics of Chinese Kale Under NaCl Stress

WANG Jian-ing，LISuya，SUNXiaohanetal（ColegeofAgricultureandForestryScience，Hebei North UniversityZhangjiakou， Hebei ）

AbstractIntispapernsealeR2susedstetstatelndtepetridshgeiatiometodasdoptedtoiatee effects of exogenous CaCl2 solutions with diferentconcentrationsonthe seed germinationof Chinese kale under28O mmol/LNaCl stres.The resultsshowedtatcomparedwithteblankcontrolgroup（CK1），8Ommol/LNaClstressignifcantlyinbitedseedgerinatioeger minationpotential，germinationrate，germinationindex，vigorindex，andseedlingfresh weightofsedsunderthisstresswere 54.5% ， 68. 3% ，10.89，1.01，and 0.09g in sequence. Under NaCl stress， the alleviating effect of exogenous CaCl2 presented a trend of first increasing and then decreasing. Among alltreatments， the 16 mmol/L CaCl2 treatment had the best effect： its germination potential （57.8% ），germination rate （64.5%） ，germination index （10.88），and seedling fresh weight （0.13g） ）were all slightly higher than those of control group CK2，and the vigor index was significantly improved. However，when the concentration of CaCl2 increased to 28mmol/L ，all indicators （ 19.5% ， 28.9% ，4.36，and O.26 respectively）weresignificantly lower than those of CK2，indicating that high-concentration CaCl2 instead aggravated the inhibitory effect of salt damage.In conclusion， CaCl2 at an appropriate concentration （ 16mmol/L ）can alleviate NaCl stress and promote seed germination，while CaCl2 at concentrations that are too high or too low has no alleviating effect and may even intensify the damage.

Key wordsSalt stress;Calcium chloride;Chinese kale;Seed Germination;Seedling growth

盐胁迫对种子的正常萌发有抑制作用，降低盐渍化土壤中植物的发芽率，进而影响其正常生长发育。（剩余7368字）