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以１３年生高产脂马尾松４９个优良家系的子代测定林资料，采用稳健主分量（ＲＯＰＣＡ）方法，对以产脂力为主的１１个性状因子（产脂力、性状表现水平值、产脂力增益、ｂｉ、Ｓ２ｄｉ、Ｓ（１）ｉ、Ｓ（２）ｉ、Ｗｉ值及树高、胸径、单株材积）进行综合分析，结果表明：参试家系可分为４种类型，即第Ⅰ类：高产脂稳定型，共１０个家系，产脂力增益２０．５９％；第Ⅱ类：中产脂变动型，共１４个家系，产脂力增益３．４５％；第Ⅲ类：中产脂高材积稳定型，共１０个家系，其材积增益可达１２．７１％，产脂力增益５．４１％；第Ⅳ类其它类型。建议如从产脂考虑，可多发展第Ⅰ种类型，从脂材两用考虑，可发展第Ⅲ种类型。
The progenies from 49 high-quality stands of 13-year-old high-yielding Pinus massoniana were used to determine the forest data. The 11 main traits (yield of fat, trait performance, The results showed that there are four types of families in the test, namely, the biomass gain, bi, S2di, S (1) i, S (2) i, Wi, tree height, Class I: high-fat-stable type, a total of 10 pedigrees, the fat gain gain of 20.59%; Class II: middle fat change type, a total of 14 pedigrees, fat gain 3.45% Medium-fat high volume and stable type, a total of 10 families, the volume gain of up to 12.71%, yield 5.41% gain in fat; Class IV other types. Proposals such as the fat from the consideration, the first type of development can be more, from the dual-use of the fat material can develop the third type.