研究了前期喷施低浓度乙烯利和采前喷施高浓度乙烯利对黑穗醋栗“黑珍珠”果实品质的影响。结果表明 :在正常采收期前 2 5d喷 1～ 2次 10 ,5 0 ,2 0 0mg/L乙烯利溶液 ,对果实中还原糖、总糖、维生素C和色素含量的增加以及有机酸含量的降低都起到了促进作用。采前 2～ 4d喷施 2 6 7,5 0 0和 10 0 0mg/L乙烯利溶液 ,只对色素含量增加起到了明显的促进作用 ,而对糖、有机酸和维生素C含量没有明显影响 The effect of pretreatment with low concentration of ethephon and high concentration of ethephon sprayed on the fruit quality of black currant black pear was studied. The results showed that the ethephon solution of 10, 50, 200 mg / L was sprayed once or twice before spraying in the normal harvest period to increase the contents of reducing sugar, total sugar, vitamin C and pigment and the contents of organic acids The reduction has played a catalytic role. Spraying 2 6 7, 500 and 10 0 mg / L ethephon solution 2 ~ 4 days before harvest significantly enhanced the pigment content, but had no significant effect on the contents of sugar, organic acid and vitamin C