赤霉素对长白山欧李产量及品质的影响

以3 a生长白山欧李为试材,花后7d对地上部喷施不同浓度的GA3,研究其对长白山欧李坐果及果实品质的影响.结果表明:GA3对提高长白山欧李的坐果率、增进果实品质都有一定的促进作用,其中,以25 mg/kg和50 mg/kg浓度的处理效果较好,坐果率提高了近10％,含糖量及糖酸比均较CK有显著的增加,尤其花后7d喷施50 mg/kg浓度的GA3效果最佳.但高浓度的赤霉素会加重长白山欧李的采前落果现象.

Effect of GA_3 on the Yield and Quality of Changbai Mountain Prunus humilis

Taking 3 years old Prunus humilis as materials,different density GA3 were sprayed on the plant above ground after flowering 7 days to study on the effect of GA3 on fruit and fruit quality of Changbai mountain Prunus humilis.The results showed that GA3 had some promotion effect in improving the forming fruit rate of Changbai mountain Prunus humilis and promoting the fruit quality,in which,the effect processed by two densities of 25 mg/kg and 50 mg/kg were better,and the forming fruit rate increased nearly 10...