【摘要】 用广东省农科院植保所研制的丰荔龙进行龙眼控梢、杀梢、促花试验。结果表明 :对六年生的龙眼树杀除冬梢 ,用丰荔龙 2 0 m l兑水 6 0～ 75 kg喷雾最安全 ,喷后 2 d嫩叶 10 0 %干枯 ,芽顶轴及腋芽均无受害 ;持续高温 ,叶片转红明显冲梢时 ,用丰荔龙 2 0 m l兑水 90 kg喷雾 ,喷后小叶干枯 ,第 5 d可见红点 ,成花率达 81.7% ;进入花芽形态分化期 ,不宜使用丰荔龙。更多还原

【Abstract】 Fenglilong, a chemical created by Plant Protection Institute, Guangdong Academy of Agricultural Siences, was tested on controlling shoots and promoting flower differentiation in longan. The results showed, for eliminating the winter-shoots of 6 years plants, which inverted from flower bud, the spray treatment with the concentration 270~300μl/L Fenglilong were best.100% young leave were died without harming terminal and axillaries buds. When the inversion emerges, the leave becoming red under continuous high temperature, 81.7% flowering radio resulted from spray treatment with 223μl/L Fenglilong. It’s not suitable for using the chemical after the beginning of the morphological differentiation.更多还原