The integrated evaluation indicated that among the 25 families the families AL 8 and MG 3 from Alabama,USA were more resistant to three needle diseases,and slash pine and masson?s pine families from China were most resistant to the diseases.

• 综合评价对 3种病害的抗性 ,以来自美国亚拉巴马州的AL 8和MG 3家系表现较好 ; 分别来自我国广东仙菊和福建五一林场的对照湿地松和马尾松家系表现最好