【作者】 罗剑斌； 何凤； 邓振权； 曾祥有； 王泽槐； 李建国；

【Author】 LUO Jian-bin;HE Feng;DENG Zhen-quan;ZENG Xiang-you;WANG Ze-huai;LI Jian-guo;College of Horticulture,South China Agriculture University;Maoming Fruit Research Insitute;

【机构】 华南农业大学园艺学院； 茂名市水果科学研究所；

【摘要】 不同时期使用氯吡脲对‘妃子笑’果实生长发育具有明显的影响。花前期施用对果实的横径生长刺激作用明显,导致果实发育畸形而干枯、脱落;果实生长期施用的刺激作用主要体现在纵径生长。不同的花果发育阶段施用均有正负效应,开花早期使用有强烈的刺激翻花作用,但是果实难坐果、易畸形;花后期、幼果期、膨大期施用则翻花作用减退,对促进果实膨大作用明显,但着色缓慢,氯吡脲处理的果实推迟7-10d成熟,且果实发育后期处理比早期处理推迟效果更明显,浓度梯度间则差异不显著。更多还原

【Abstract】 Forchlorfenuron(CPPU) sparying in different fruit developmental period had a significant impact on fruit growth and development in ’Feizixiao’ litchi. The CPPU used before flowering could significantly stimulate the growth of fruit transverse diameter,resulting in fruit alformation and fruit drop. However the stimuling effect of CPPU spraying in the fruit growth period reflected in the growth of fruit vertical diameter. Both positive and negative effects on fruit development were observed when spraying CPPU at different developmental period. It could stongly promote to produce the second female when applying in the period of early flowering,but it was difficult to fruit set and easy to produce abnormal fruit; it could increase fruit final weight when applied in the fruit enlargement period,but slow down the fruit coloring process and delay fruit maturing about 7-10 d.更多还原