Dry weight growth of Cinnamomum camphora seedlings under different levels of light intensity

概要

論文の詳細を見る
Seedlings of Cinnamomum camphora L. were experimentally grown under different levels of light intensity including lower light intensity below a compensation point. The relationship between mean plant weight and wide levels of relative illuminance was newly formulated based on the experimental results. Curve for the relationship between relative growth rate (RGR) and relative illuminance calculated from the new equation approximated to the change of experimental values of RGR to relative illuminance. The light compensation point for RGR was higher than that for plant dry weight, and changed to higher light intensity as time passed. The new equation was compared to the previous equations for plant dry weight response to light intensity, and the differences to the previous equations were discussed. It was shown that the new equation, which includes the property of the previous equations, well expressed survival in early growth stage under the light intensity below a compensation point. By comparing the light compensation point for RGR calculated from mean plant weights included cotyledon weight and that for RGR from mean plant weights excluded cotyledon weight, it was shown that the seed reserve mass of Cinnamomum camphora may translocate to seedlings in early growth stage.
香川大学の論文