摘心修剪对秋果型红树莓延后栽培影响

Effect of pinching and pruning on retarding cultivation of primocane-fruiting red raspberry

以秋果型红树莓‘Heritage’为材料在日光温室内进行二因素随机区组试验,研究摘心修剪时间和修剪程度对物候期和产量及分布影响。结果表明,果实产量及其分布与摘心修剪时间和修剪程度联系密切,修剪程度越重,采果时间越晚,果实产量越低;除摘心外,其他修剪程度组处理时间越晚,采果时间越晚,处理时间过晚会导致果实产量降低;摘心只在营养生长期对秋果型红树莓产量及分布产生影响。综合考虑,以5月初约50 cm高植株平茬处理的产量最高,果期延后效果较明显,可在生产中推广应用。

Effects of the time and degree of pinching and pruning on phenophase, yield and their distribution with the promicane-fruiting red raspberry‘Heritage＇were studied in two factor randomized block design in greenhouse. The results showed that the time and degree of pinching and pruning had a close relation with the fruit yields and distribution. With the pruning more heavy, the fruiting time was more later and the fruit yield was also lower. With the pruning time delaying of other pruning treatment except for soft-tipping, the effect of fruiting delay was more obvious. But when the processing time was too later, the yield of promicane-fruiting red raspberry was reduced. Soft-tipping which only picked at vegetative period had an impact on yield and distribution of promicane-fruiting red raspberry. Overall consideration, promicane-fruiting red raspberry which was about 50 cm high and cutted at the beginning of May had the highest yields and its delayed effect was more effective, cutting at the beginning of May should be promoted in the production.