The growth of the height and calliper of seedling of Bretschneidera sinensis Hems1. was classified into 8 types by using the large samples method and the standard deviation classification method of Gaussian distribution in this paper.The results indicated that the differentiation of seedling colony was remarkable in early stage and the height of growth types of average value and adjacent interval was over 85% and the polarization ratio of the fine and sick growth types was fewer in total and it will provide theory for selecting the excellent growth-type through that the diversity constitute of growth character and the potential dominant growth-type were disclosed through the classification of the different growth-type.The adaptability growth of the different growth-types was studied and it indicated that growth period of excellent growth-type compared with the inferior growth-type is longer,but growth period of calliper of the different growth-type was essentially the same and the calliper-growth was influenced by the height growth and photosynthesis.It indicated that the growth of height and calliper of the seedling of Bretschneidera sinensis Hems1.will be obviously influenced by genetic quality.
Bretschneidera sinensis Hems1.growth charactergenetic diversityadaptability growththe standard deviation classification method of Gaussian distribution