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金叶水杉是近几年刚刚从国外引种的观赏园艺品种,因其具有树干直立、树形端庄、树冠呈宝塔形、叶色金黄靓丽、生长速度快、观赏性强等优良特性,现已成为我国园林行业彩叶树新秀。笔者研究不同时期定植的砧木、不同嫁接方法及不同嫁接时间对金叶水杉嫁接成活率及生长量的影响。结果表明:对金叶水杉前一年秋天进行砧木定植、来年2月下旬采用劈接法接穗处理最佳,嫁接成活率为94.5%。因此,嫁接时间选在每年2月下旬到3月上旬为宜,接穗当年抽梢新枝生长良好,木质化程度高,能安全越冬。
Metasequoia leaves Metasequoia is recently introduced from abroad, the ornamental horticultural varieties, because of its trunk upright, tree dignified, the crown was pagoda-shaped, beautiful yellow leaves, fast growth, ornamental and other excellent features, has now become China’s garden industry Caiye tree rookie. The author studied the rootstocks in different periods of planting, different grafting methods and different grafting on the Metasequoia glyptostroboides grafted survival rate and growth. The results showed that rootstocks were planted in the autumn of the year before Metasequoia glyptostroboides, and the scion was best treated by cleavage method in late February of next year. The grafting survival rate was 94.5%. Therefore, the grafting time selected in late February each year to early March is appropriate, scion year shoot new branches grow well, a high degree of lignification, safe and wintering.