阿月浑子实生苗年生长发育动态研究

Study on Annual Growth and Development Dynamics of Seedling of Pistacia vera L.

以阿月浑子1a生实生苗为研究对象,通过定期观测阿月浑子苗高、地径生长,并用Logistic方程、Compertz模型、幂函数、指数函数、二次曲线、韦布尔函数等数学模型对苗高、地径生长过程进行拟合。结果表明:①用Logistic方程模拟阿月浑子1a生实生苗苗高和地径年生长状况的相关系数和拟合度最高;②阿月浑子苗木属全期生长型,苗高、地径生长均符合"S"型生长曲线,年生长可划分为生长初期、速生期和硬化期3个时期,速生期苗高及地径生长量分别占总生长量的59.27%和45.58%;③阿月浑子地径生长速生期起始时间比苗高生长速生期起始时间提前7d,结束时间滞后高生长9d。

In this study, took annual seedlings of Pistacia vera L. as object, seedling height, ground diameter growth of Pistacia vera L. were regularly observed, and mathematical function model fitting was carried out on seedling height and diameter growth with the Logistic equation, Compertz model, power functions, exponential functions, quadratic, Weibull functions. The results show that： （1）there is the highest correlation coefficient and fitting using Logistic equation simulation with annual seedling height and diameter growth; （2） annual seedlings of Pistacia vera L. are belong to the whole period of growth form, height, diameter growth are in line with ＂S＂ type growth curve, the annual growth can be divided into three periods, early growth period, fast-growing period and hardening period, seedling height and diameter growth of fast-growing period are respectively of the total amount of 59.27% and 45.58% ; （3） diameter growth starting time is 7 days in advance of the height growth starting time, and the ending time is 9 days late of the height growth in fast-growing period.