1969 年 35 巻 6 号 p. 524-532
Through various experiments on artificial mass culture of Porphyra tenera, it was found that the growth rate relevant to light intensity and population density can be expressed as following equations.
The general equation of growth rate, expressed in complicated function of the factors; such as aging, population density, light intensity, and mutual shading, may be:
when f, g, and h are the functional notations of W (dry weight of a frond), C (number of fronds), and I (light intensity) respectively.
And, the mutual shading effect:
when Ic is light intensity of transmitted through the vessel, and I ?? is intensity of incident light, and B and α are constants.
Mean value of light intensity:
when L is width of the vessel.
Light intensity effect h(I) in the first equation
when b and a are constants.