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目前,马尾松优树选择已从人工林转到天然林进行,以找出种源清楚,品质更优良的优良单株进行良种繁育,建立优良基因收集圃及无性系种子园。但是,由于天然林林分结构复杂、年龄不一、林相不整、林木分化强烈,因此,过去在人工林中选优的“五株法”显然不能套用于天然林。本文介绍的是我们借鉴一些省的经验,经过摸索出的一种适合我区马尾松天然林优树选择的方法。
At present, the masson pine tree selection has been transferred from the plantation to the natural forest, in order to find a clear provenance, better quality superior single plant breeding, the establishment of good gene collection nursery and clonal seed orchard. However, due to the complex structure of the natural forest, the different age, the uneven forest, and the strong differentiation of the forest, the “five strains” selected in the plantation in the past obviously can not be applied to the natural forest. This article describes the experience of some provinces we learn from, through the exploration of a suitable Masson pine natural forest tree selection method.