近年来,人们企图用建立嫁接种子园的方法来解决林木种子问题。但是,直到目前仍有一系列的理论和实践问题存在着争论,需要进一步试验。对接穗和砧木的一般要求接穗要采用优树上的枝条,这就要求预先检验优树的遗传稳定性。因为非常微小的生态条件都会引起变异,从而掩盖了种子园可以越过优树遗传性的检验。但是,花巨大的劳动砍伐建立的嫁接种子园,未必是经济有利的。因此,应当明确规定:只应该繁殖 In recent years, people have tried to solve the tree seed problem by establishing a method of grafting seed orchards. However, until now there is still a series of theoretical and practical issues in dispute, which require further tests. The common requirements for scions and rootstocks are to use the branches of the elite tree, which requires that the genetic stability of the elite tree be tested in advance. Because very small ecological conditions will cause variation, thus covering the seeds of the park can cross the tree genetic test. However, it may not be economically advantageous to build a grafted seed orchard that is heavily deforested. Therefore, it should be clearly stipulated that only reproduction should be allowed