Seasonal Changes in Respiratory Rate of Stems and Their Growth

Abstract

幹の呼吸速度と幹の生長速度との関係が, 呼吸速度の季節変化に関連して調べらた。その結果は次のようにまとめられた。1) 生育期における一ヵ月当りの呼吸量は一ヵ月当りの幹の生長量と密接な関係を持つ。2) 休眼期における呼吸速度は, 幹の表面積に比例する関係にあった。3) 一年間の幹の呼吸量と幹の生長量との関係は, 比例関係ではなく, 次の式が近似された。log R=0. 681 log ⊿V+0. 302 log R=0. 682 log ⊿W+0. 326

The relation between respiratory rate per month in stem samples and their growth rate were investigated relating to the seasonal change. The following results were deduced. 1) Respiratory rate per month in the stem samples had a close relation with the growth of the stems during a growing season. 2) During a dormant season, the rate of respiration is proportional to the surface area of the stem samples. 3) In the relation between respiratory consumption per year in the stem samples (R) and growth of the volume (⊿V) or growth weight (⊿W) in a current year, following relations were found, i. e., [Figure Omitted]