1984 年 34 巻 1 号 p. 35-45
The frequency distribution of individual weight in Cryptomeria japonica and Raphanus sativus populations was studied, with special reference to the reciprocal equation of the C-D effect. Limited by the reciprocal equation of the C-D effect, all the coefficients of the distribution function of weight in a population were expressed by empirical equations of the population density of plants. These empirical equations simulated the systematic changes of the distribution density function of weight in the populations. Thus, the behavior of the distribution density function of weight in populations was expressed as a normalized density function of weight.