PBO对不同品种无花果结果枝生长及结实的影响

Effects of PBO on the growth and fecundity of fruiting branches of various varieties of Ficuscarica Linn

采用3个不同浓度的PBO溶液对无花果叶面喷施,研究PBO对无花果结果枝生长和结实的影响。结果表明:PBO能有效抑制无花果结果枝的营养生长、侧枝发枝数量,且不同品种的抑制效果不同;喷施PBO能抑制‘ALMA’、‘杜鲁’和‘青皮’3个品种的节间伸长,当浓度为100和150 mg/L时,对‘青皮’节间的抑制效果最明显,‘B110’和‘波姬红’喷施PBO后,未见节间长度明显变化;喷施PBO后有降低无花果坐果率的趋势。

3 different concenlrations of PBO were sprayed on Ficuscarica Linn, and the growth and fecundity offruiting branches were studied. The results indieated that PBO caninhibit the vegetative growth of fruiting branches and the collateral branch number, and the inhibitory effects of different varieties were different. Spraying PBO could inhibit the internode elongation of the 3wineries, i. e. ALMA, Dulu and Qingpi. When the concentration was 100 or 150 mg/L, the most obvious inhibitory effect was found onQingpi inlernode length. B110 and Bojihong showed no significant changes in internode length. Spraying PB（） had a tendency todeerease the fruit setting rate of E caricaLinn.