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以30年生国庆1号温州蜜柑(Citrus unshiu‘Guoqing No.1’)为材料,在不同时期喷施不同浓度的乙烯利和萘乙酸,比较不同处理疏花疏果的效果。结果表明,喷施乙烯利的各处理疏花疏果效果显著,盛花期喷施乙烯利400或800mg/L以及盛花后1周或2周喷施乙烯利200、400或800mg/L,经过一定时间均能达到完全疏除的效果。盛花后1周喷施萘乙酸200、400或600mg/L,经过较长时间后均有显著的疏花疏果效果,着果率均低于1%,且600mg/L处理能达到完全疏除的效果;盛花后2周只有喷施萘乙酸400或600mg/L在经过较长时间后能有显著的疏花疏果效果,且600mg/L处理能达到完全疏除的效果。
The 30-year-old Citrus unshiu ’Guoqing No.1’ was sprayed with different concentrations of ethephon and naphthalene acetic acid at different periods to compare the effects of different treatments of thinning and thinning. The results showed that the effects of spraying ethephon on the flowering thinning and fruiting were significant. After spraying ethephon 400 or 800 mg / L in full bloom and spraying ethephon 200, 400 or 800 mg / L for 1 week or 2 weeks after full bloom, Time can achieve the effect of complete thinning. Naphthalene acetic acid 200, 400 or 600 mg / L was sprayed 1 week after full bloom, and the effect of thinning and thinning was obvious after a long period of time, the fruit rate was less than 1%, and the treatment of 600 mg / L could achieve complete thinning The results showed that only naphthalene acetic acid 400 or 600 mg / L was sprayed for 2 weeks after blooming, and the effect of thinning and thinning was obvious after a long period of time, and the effect of 600 mg / L treatment could be completely eliminated.