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江苏省江宁县东善桥林场用引进杉木的37个杂交组合的杂交子代和9个种源17个优树子代实生苗营造试验林。7年生时调查,其杂交子代比同龄母本生长好,蓄积比母本大0.22%～258.9%,比对照(混系苗造林) 大78.9%～434.5%。方差分析结果,从中选出E_1、D_1、A_1、44、42、49号6个优树子代。它们具有生长快、干形好、抗逆性强,生长稳定等特点。另外还证明,用北亚热带种源作母本,中亚、南亚热带种源作父本进行杂交,其杂种后代具有较强的抗寒性。
The Dongshengqiao Forest Farm of Jiangning County, Jiangsu Province, used the hybrid progeny of 37 hybrid combinations and the provenances of 17 provenances of 9 provenances to create experimental forests. In the 7-year-old survey, the hybrid offspring grew better than the same-age female parent, accumulating 0.22% -258.9% more than the female parent, 78.9% -443.5% larger than the control (mixed-line afforestation). Variance analysis results, select E_1, D_1, A_1,44,42,49 number of six superior tree progenies. They have fast growth, good dry, strong resistance, stable growth and so on. In addition, it was also proved that the hybrids were made from the northern subtropical provenances as male parent, central Asia and southern subtropical provenance, and their offspring had strong cold resistance.