葡萄柚引进品种嫁接繁殖技术

Grafting techniques of introduced grapefruit trees

为优化葡萄柚嫁接技术,为葡萄柚嫁接繁殖提供理论依据,进行了不同嫁接方法、不同嫁接时期、不同接穗年龄、不同接穗处理、不同砧木规格以及不同接穗品种的葡萄柚嫁接繁殖试验。结果表明：嫁接方法以单芽切接法最适宜;春季嫁接时期以1月中旬最佳;0.5年生和1年生接穗均适合用于嫁接;接穗留置24 h内不影响嫁接成活率;砧木地径在6.00 mm以上的嫁接体新梢长势较好;采用单芽切接法嫁接的葡萄柚5个品种成活率在87.7%-95.7%之间。

In order to improve grafting techniques of grapefruit,and to provide a theoretical basis for grafting of grapefruit,some grafting experiments of grapefruit were carried out,from the aspects of different grafting methods,grafting periods,scion ages,scion treating methods,stock specifications and different scion cultivars.The results showed that the optimum grafting method was single bud cut-grafting,the best period in spring was the middle of January,and 0.5- and 1-year-old scions were suitable for grafting.It was little effect on grafting survival rate to conserve scions grafted within 24 hours.The grafted new shoot grew well when ground diameter of stock was above 6.00mm.The survival rates of five cultivars of grapefruit were from 87.7% to 95.7% with the single bud cut-grafting method.