7 fine families of Pines elliottii were selected from investigation on their chest diameter,volulne,infection rate and principal component genetic index.
对4个省30个家系在闽候南屿林场进行子代测定,通过多年观测,以胸径、材积、感病率3个调查性 状为测度,用主成分遗传指数得分值为多性状综合指标,评选出7个优良家系,其材积遗传增益为12。
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