Root Anaerobiosis, Root Respiration, and Leaf Conductance of Peach, Willow, Quince, and Several Pear Species
| Autor: | P. C. Andersen, J. M. Montano, P. B. Lombard |
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| Rok vydání: | 1985 |
| Předmět: | |
| Zdroj: | HortScience. 20:248-250 |
| ISSN: | 2327-9834 0018-5345 |
| DOI: | 10.21273/hortsci.20.2.248 |
| Popis: | The effects of root anaerobiosis on root respiration and leaf conductance (kl) were determined in solution culture experiments. Respiration of feeder roots (2) of Pyrus betulaefolia Bunge, Pyrus calleryana Decne, Pyrus communis L. (‘Old Home’ × ‘Farmingdale 97’) and Cydonia oblonga Mill. ‘Provence BA 29’ was reduced by no more than 50% after 21 days of anaerobiosis. In contrast, root respiration of Prunus persica (L.) Batsch ‘Lovell’ was reduced by 80% with anaerobiosis, whereas that of Salix discolor Muhl. increased. Reductions in kl with anaerobiosis generally were more pronounced than reduction in root respiration when measured in air. Respiration rates of aerobically or anaerobically treated pear roots were inhibited by 25% to 50% when incubated in 0.5% O2 compared to rates in air. More work is required in order to delineate the relationship of root respiration and kl with anaerobiosis. |
| Databáze: | OpenAIRE |
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