Effects of Salt Stress on Germination Rate and Physiological Characters of Different Spinach Varieties
Wen Xiaoxia
Wang Dong
Zhou Aifeng
Zhao Hexian
Liu Gang
Qin Biao
Abstract：Using 3 spinach cultivars,Fulaite,Huangkang and Bolaiyin,as materials,the effects of dif-ferent concentrations of NaCl (0,20,40,60,80 mmol /L)on germination rate,leaf area,chlorophyll con-tent,photosynthetic parameters,activities of antioxidant enzymes,proline and soluable protein contents were studied.The results showed that 3 spinach cultivars all exhibited the highest germination rate,chlorophyll content,superoxide dismutase (SOD)and peroxidase (POD)activities under 20 mmol /L NaCl treatment. With the increase of NaCl concentration,the leaf area decreased,while the proline content increased,among which,the highest content appeared in Bolaiyin with the biggest change amplitude.The soluble protein con-tent had the similar tendency with that of proline.The net photosynthetic rate got the highest under 20 mmol /L NaCl treatment.The transpiration rate and stomatal conductance reduced gradually with the increase of NaCl concentration.Above all,lower NaCl concentration could promote spinach growth,and Bolaiyin showed higher salt resistance compared with the other two cultivars.
Keywords：SpinachNaCl stressGermination ratePhysiological characters
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 27-30 )