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火炬松引种于我省马鞍山市林场,已有20多年。实践证明,不但生长良好,而且开花结实正常。从栽培实生第二代和第三代情况来看,生长发育都表现良好。近几年来,我省各地对引种发展火炬松越来越重视,数量与规模越来越大。北至淮北平原的宿县专区,南至皖南的徽州专区皆有引种。火炬松在其发育过程中,由于受自然条件和栽培技术措施的影响,产生了变异,形成了显然不同的类型。类型间和不同植株间在生长速度、结实习性和抗病虫害能力等方面,具有显著差异。遵照毛主席关于“有了优良品种,即不增加劳动力、肥料,也可获得较多的收
Introduced in the province of Ma’anshan Ipomoea pine forest, more than 20 years. Practice has proved that not only grow well, but also flowering and fruiting normal. From the cultivation of the second generation and the third generation situation, growth and development are doing well. In recent years, all over our province, more and more attention has been paid to introduction and development of loblolly pine, with an increasing number and scale. Su-North Plain Huaibei area, south of Anhui Province Huizhou area Jieyou introduction. During the development of Pinus taeda, due to the influence of natural conditions and cultivation techniques, variation has taken place and apparently different types have been formed. There were significant differences in growth rate, seed-setting habits and pest-disease-resistance capacity among different types and between different plants. According to Chairman Mao on "With excellent varieties, that is, without increasing labor, fertilizer, but also get more income