Regulation and practicability of trace elements in the priming of rape seeds
In order to improve the seed vigor of rape(Brassica napus L.)to enhance the stress resistance during seed germination and seedling stage,the effects of different trace element combinations were compared and analyzed by response surface analysis method to derive the element combination with the best effect on rape seed vigor improvement,and the influence of this combination on the growth,development and final yield of different rapeseed varieties was further verified.The results showed that Se(5.0 mg/L),B(5.0 mg/L),Zn(100.0 mg/L)and Mo(1.0 mg/L)had significant effects on seed germination.Response surface analysis showed that the op-timal combination of trace elements was Se(6.7 mg/L)+B(7.5 mg/L)+Zn(82.3 mg/L)+Mo(4.6 mg/L).Under this combination,the accumulation of soluble protein was significantly improved,and the stress resistance of seedlings was also significantly enhanced.The application experiments in different rape varieties proved that this combination could effectively increase the yield per plant(P<0.05).
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