Research about alleviating heat stress on eggplant seedlings by applying DA-6

In this experiment,we sprayed DA-6 with different concentrations(10、20、30、40、50 mg/L)on the eggplant seedings,then we put the seedings under high temperature(40℃/32℃,day /night),we studied the effects of heat stress on the electrolyte permeability,root activity,MDA,proline,chlorophyll content,superoxide anion,soluble protein and the activity of protective enzyme of eggplant seedlings.The results showed that: the physiological parameters of the eggplant seedlings in different DA-6 treatments showed significant difference contrasting to that of CK,especially when the eggplant seedlings were spraied DA-6 with 20 mg/L,the chlorophyll content,root activity,electrolyte leakage,SOD,proline content and MDA content of the seedlings were suprior to that of other treatments with significant differences.In conclusion,Spraying DA-6 could alleviate the heat stress on eggplant Seedlings,and the suitable concentration of DA-6 was 20 mg/L.