亲和力是影响结实和杂交成败的主要因素。树木多属异花授粉植物,不仅远缘杂交和自交存在亲和性问题,就是在同一树种内,不同植株之间亲和力的大小也有明显差异。种子园半同胞子代测定,往往爱到少数几个亲和力特别强的父本花粉垄断受精作用的干扰。我国南方主要木本油料树种油茶(Camellia Oleifera)是异花授粉树种,自花授粉结实率极低。现有的油茶林,都是由遗传基础不同的单株所组成的混杂群体,不同植株之间同样存在亲和 Affinity is the main factor affecting the success of fruiting and hybrid. Trees are mostly cross-pollinated plants, not only the existence of distant hybridization and self-compatibility problems, is in the same species, the affinity between different plants also have significant differences in size. Seeds garden half-sib son determination, often love to a few very strong parental pollen monopoly interference fertilization. Camellia Oleifera, a major woody oilseed species in southern China, is a cross-pollination species with very low self-pollinating rate. The existing Camellia oleifera, are composed of different genetic basis of a mixed group of individuals, different plants also exist between the affinity