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为选择生长快,适应性强的湿地松、火炬松优良种源以提高营林效益,省林科所于1981年至1984年先后在我省进行了三次湿地松、火炬松种源试验。经多性状综合评定,选出湿地松、火炬松适生优良种源各5个,分别与对照(湖北武昌、广东台山)种源相比,湿地松优良种源材积增益23.95%—50%;火炬松优良种源材积增益36.81%—80.21%,增产效果显著。最近,这项由省
In order to select the good provenance of Pinus elliottii and Pinus taeda in order to improve the efficiency of silviculture, the Forestry Branch of Zhejiang Province conducted three provenances of Pinus elliottii and Pinus taeda in our province from 1981 to 1984. According to comprehensive evaluation of multi-traits, 5 elite provenance provenances of Pinus elliottii and Pinus taeda were selected. Compared with provenances (Wuchang, Hubei and Taishan, Guangdong), the provenance of Pinus elliottii was 23.95% -50% Pinus massoniana excellent provenance volume gain of 36.81% -80.21%, a significant increase in yield. Recently, this province by