Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (6): 67-72.doi: 10.11924/j.issn.1000-6850.casb16060140

Special Issue: 生物技术 园艺

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Desulphurization Gypsum: the Effect on Physiological Characters of Salt Resistance of Tree Species

  

  • Received:2016-06-27 Revised:2016-09-08 Accepted:2016-11-10 Online:2017-03-02 Published:2017-03-02

Abstract: Ulmus elongata, Ulmus pumila, Fraxinus americana, Amorpha fruticosa Linn. Were uesed to study the effect of exogenous calcium from desulphurization Gypsum on Physiological characters of salt resistance in four tree species. The results showed that: Application of desulfurized gypsum could promote the growth of four tree species, increase the survival rate and the salt resistance index. The content of chlorophyll a, chlorophyll b and proline were increased and the uptake of K was significantly promoted by desulfurized gypsum, while the uptake of Na was inhibited by desulfurized gyspsum.. We concluded that the content of chlorophyll and proline were affected by exogenous calcium, and the balance of K /Na was adjusted and improved the physiological chasracters of salt resistance.