论文部分内容阅读
在思茅松种子园建设中， 分别采集不同产地的９０ 株优树种子培育子代林， 在普文林场进行了半同胞子代测定。各性状相关分析结果表明树高、胸径、冠幅与材积生长相关密切。通过主要性状方差分析显示差异显著，进而对主要性状的遗传参数进行了评估， 并根据检验ｔ 值的显著性， 进行了优良家系选择。对各家系的主要性状所作的遗传相关分析结果表明树高早晚期遗传稳定， 为思茅松早期选择提供了依据。
In the construction of Simao pine seed orchard, 90 elite seed breeders were collected from different habitats, respectively, and half sibling progenies were detected in Puwen forest farm. Correlation analysis of traits showed that tree height, DBH and crown width were closely related to volume growth. An analysis of variance of the major traits showed significant differences, and then the genetic parameters of the major traits were evaluated, and good family selection was made based on the significance of the test t value. The genetic correlation analysis of the main traits of each family showed that genetic stability of early and late tree height provided the basis for the early selection of.