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湿地松是一个有发展前途的速生树种。1982年我们利用从美国国际林木种子公司进口的批量生产的种子进行种源试验。该批种子来自美国6个州的15个产地。通过多地点试验,以了解这批种源的遗传品质,比较不同种源的生长表现与适应能力。苗期试验结果表明,在种子发芽率、生长量方面,种源间有显著差异。其中,南卡罗来纳州威廉斯堡县的种源发芽率最高,生长量最大。原产地的多数种源在上述性状方面优越于我国广东台山红岭种子园种子(对照)。对上述问题及种源适应性与稳定性也作了讨论。
Slash pine is a fast growing tree species. In 1982 we used provenances from mass-produced seeds imported from American International Forest Seeds. The seed comes from 15 of the six states in the United States. Through multiple site experiments to understand the genetic quality of these provenances, compare the growth performance and adaptability of different provenances. Seedling test results showed that in the seed germination rate, growth, there are significant differences between provenances. Among them, Williamsburg County, South Carolina germination rate highest, the largest growth. Most of the provenances of origin were superior to those of Hongling Seed orchard in Taishan, Guangdong, China (control) in the above traits. The above problems and the adaptability and stability of provenance are also discussed.