关键词: 香叶树, 1年生苗, 苗高, 地径, 生长量, 生长曲线

Abstract: The study was carried out on growth regularity of one-year Lindera about height and ground diameter after sowing and cultivation. After regular determination, the relationship between the time, height and diameter was fitted into the mathematical mode on ordinal samples cluster and regression analysis. The results indicated that the growth period of one-year Lindera sown seedling could be divided into four periods: The seedling stage, the initial stage, growing vigorously stage and the late stage of growth. The height of Lindera, in the seeding and initial stage was occupied small proportion, the sum of both accounted for 7.93% which was 14.55% lower than the late stage of growth. The ground diameter of Lindera was 18.03% in the seedling growth, 11.47% in the late stage of growth and 8.2% in the initial stage. The time of height and diameter accounted 46.67%, but its increment was accounted for 77.51% and 62.30% of the total increment respectively in growing vigorously stage. There was a significant relationship between the time, height and the ground diameter, the growth curve was of high reliability, which could be used to estimate and analyze the variation of height and ground diameter of one-year-old Lindera at different growth stages.

Key words: Lindera, one-year seedling, height, ground diameter, increment, growth curve