枝条、木钉菌种，具有萌发快、不易死亡、缩短满袋 (瓶 )时间、不用开袋接种、减少污染、提高成品率、菌种不易老化、保质期长、接种方便、快捷等优点，其推广应用前景广，现将其制作要点介绍如下。　　一、选择优良种木 选择边材多、心材少、皮厚、营养丰富、韧皮部与木质部 It has the advantages of rapid germination, easy death, shortening of full bag (bottle) time, no opening bag inoculation, reduction of pollution, improvement of yield, uneasy aging of bacteria, long shelf-life, easy inoculation and quick inoculation, etc. Promote the wide application prospects, the production of their points are introduced below. First, the choice of superior seed selection of sapwood and more heartwood less, thick skin, nutrient-rich, phloem and xylem