当前,在建立杉木无性系种子园时,普遍沿用“壮砧、高接、留轮枝”(简称高接)的嫁接方法。为寻求更适合于采种母树树冠矮化要求和便于利用大砧嫁接建园的可能性,我们用“大砧、低接(简称低接)的方法建立种子园,现将试验结果小结于下: 一、试验方法用1977年定植的5年生树作砧木(高3.3米、地径6.9厘米),在离地面20—25厘米处断砧,选收集圃内树冠上部粗壮的枝条作接穗,截为穗顶和次段穗,用切接法接于砧木两侧,不留轮枝。1981年3月上旬嫁接的种子园 At present, in the establishment of Chinese fir clonal seed orchard, generally follow the “strong anvil, high access, stay round branches” (referred to as high access) grafting methods. In order to find more suitable for planting seedlings dwarf tree dwarfing requirements and easy to use large anvil grafting garden, we use "big anvil, low access (referred to as low access) method to establish seed orchard, the test results are summarized below: First, the test method used in 1977, five-year-old tree planted as rootstock (3.3 meters high, 6.9 cm in diameter), 20-25 cm off the ground at the anvil, the collection of branches in the upper canopy thick branches for scion, cut as Spike top and the second section of the spike, with cut the law connected to both sides of the rootstock, leaving no branches. In early March 1981 grafted seed orchard