野生榧树换种嫁接试验

Experiment on Grafting of Torreya grandis

采用本砧嫁接和移砧嫁接对不同规格野生榧树进行嫁接试验，结果表明，榧树本砧嫁接和移砧嫁接成活率均达到90％以上；采用本砧嫁接和移砧嫁接母树规格大小对移砧嫁接后的香榧生长有较大影响，母树越大，嫁接后生长越陕，胸径30cm以上的母树本砧嫁接6a后平均单株鲜果产量可达到31．75kg／株，地径15～20cm的母树移砧嫁接6a后平均单株鲜果产量可达到9．00kg/株。

Experiments were conducted on grafting of wild Torreya grandis with scions of T. grandis cv. ＇Merrillii＇ by free stock gnd transplanted stock. The result demonstrated that two grafting methods had survival rate of over 90%. The result also indicated that stock had positive effect on growth of scions. Grafted free stock with DBH of 30cm had mean fresh fruit of 31.75kg/tree 6 years after grafting, and grafted transplanted stock with ground diameter of 15-20cm had mean fresh fruit of 9kg/tree 6 years after grafting.