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选择优良母树后,采用嫁接方法建立杉木种子园,实现种子生产基地化、造林良种化,是多快好省地发展杉木生产的重要技术措施。但是,在杉木嫁接后,植株生长过去普遍存在树冠偏斜的问题,使产果量低,管理困难,直接影响种子园的发展。近两年来,我们共同协作研究,总结出采用“大砧留轮枝皮下切接”的方法,基本上克服了杉木嫁接偏冠的问题。1975年春,曲江林场杉木种子园采用这种方法嫁接1300
After choosing the good mother tree, using the grafting method to establish the Chinese fir seed garden, to achieve the seed production base, afforestation and seed multiplication, it is an important technical measure to develop the fir more quickly and economically. However, after the Chinese fir is grafted, the problem of skewed canopy generally prevails in the past, which leads to low fruit yield and difficult management, which directly affects the development of the seed orchard. Over the past two years, we work together to study and summarize the use of “big anvil leave branch cut under the” method to basically overcome the problem of grafted Chinese fir crown. The spring of 1975, Qujiang Forest Fir Seed Garden using this method of grafting 1300