Stem respiration in leafy cuttings of Prosopis juliflora during the rooting process

Abstract

An oxygen electrode was used to estimate the respiration rate of basal 1 cm sections of Prosopis juliflora cuttings. The respiration rate per unit dry mass decreased linearly with increasing diameter at a rate of 0.42 nmol 02g<sup>–1</sup>s<sup>–1</sup>mm<sup>–1</sup> between the range of 1–3 mm diameter. However, as a result of increased mass, total respiration for the whole 1 cm section of tissue increased linearly with increasing diameter. The average respiration rate of the basal 1 cm of stem tissue, measured 14 days after insertion in the propagator, was almost double that of the 1 cm section of tissue above it (1.01 nmol 02g<sup>–1</sup>s<sup>–1</sup> compared to 0.57 nmol 02g<sup>–1</sup>s<sup>–1</sup>). The value of this technique as an aid to our understanding of the development of adventitious roots is discussed.

Citation

Dick, J.McP.; Blackburn, D.G.; McBeath, C. Stem respiration in leafy cuttings of Prosopis juliflora during the rooting process. New Forests (1994) 8: 179-184. [DOI: 10.1007/BF00028193]

Stem respiration in leafy cuttings of Prosopis juliflora during the rooting process

Help us improve GOV.UK

Don’t include personal or financial information like your National Insurance number or credit card details.