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一、试验目的火炬松的种源间和种源内的个体之间的差异较湿地松大,进行元性系选育的效果将更为显著。本小试验的目的进行火炬松无性系选育的可能性和可行性的研究,以为今后进一步探讨开展无性系选育的前景。二、试验材料与方法将一般实生苗中的超级苗,通过针叶束繁殖成无性系,经过定植培育成两年生苗,于1984年春造林,株行距3×3米,以一般两年生实生苗作对照,采取了株小区3次重复设计。三、试验的初步结果 1986年9年16日,对上述试验林的生长情
First, the purpose of the test Pinus taeda provenance between sources and individuals within the differences between the larger than the pine, the conduct of the Department of the Department of breeding effect will be more significant. The purpose of this experiment is to study the possibility and feasibility of the breeding of Pinus taeda clones in order to further explore the prospects of clonal breeding in the future. Second, the test materials and methods Super seedlings in the general seedlings, through the needle bundle propagation into clones, after planting cultivated into two-year-old seedlings, in the spring of 1984 afforestation, spacing of 3 × 3 meters, to the general biennial seedlings As a control, taken three repeated strains of plants plot design. Third, the preliminary results of the experiment 1986 年 9 16, on the growth of the test forest