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报道五针白皮松（Ｐｉｎｕｓｓｑｕａｒａｔａ Ｘ－Ｗ－Ｌｉ）种苗生物学特性，分析了五针白皮松的生长规律．该树种种子品质较差，发芽势弱，针叶出现时间晚于其它松树，４年生前生长缓慢，４ 年生后生长开始加速，２０ 年生时生长速度超过了云南松（Ｐｉｎｕｓｙｕｎｎａｎｅｎｓｉｓ）等树种．
The biological characteristics of Pinussquarata X-W-Li seedlings were reported. The growth patterns of Pinus massoniana were analyzed. The seeds of this tree were of poor quality with weak germination potential. The emergence time of needles was later than that of other pine trees. The growth of 4-year-old trees was slower than that of other pine trees. The growth started to accelerate after 4 years of birth and exceeded that of Pinus yunnanensis at 20 years.