WATER RELATIONS OF MYCORRHIZAL AND PHOSPHORUS‐FERTILIZED NON‐MYCORRHIZAL CITRUS UNDER DROUGHT STRESS*
- 1 March 1987
- journal article
- research article
- Published by Wiley in New Phytologist
- Vol. 105 (3) , 411-419
- https://doi.org/10.1111/j.1469-8137.1987.tb00878.x
Abstract
Summary: Rootstock seedlings of Carrizo citrange (Poncirus trifoliata (L.) Raf. x C. Sinensis (L.) Osbeck) and sour orange (Citrus aurontium L.) were grown in a sandy soil low in phosphorus (P) and either inoculated with Glomus intraradices Schenck & Smith (vesicular‐arbuscular mycorrhizal; VAM) or fertilized with soluble P (non‐mycorrhizal; NM). Five‐month‐old VAM and NM seedlings of each rootstock were comparable in size, P sufficiency, and relative growth rate whether they were kept well‐watered or subjected to two drought‐stress cycles of short duration. Under well‐watered conditions, whole plant transpiration, leaf water status, and root hydraulic conductivity were similar for VAM and NM plants of each rootstock. During drought‐stress and recovery periods, VAM plants also had very comparable whole‐plant transpiration rates and leaf water potentials to NM plants, but mycorrhiza reduced root hydraulic conductivity of Carrizo citrange and sour orange 66 and 49%, respectively. These data do not support the hypothesis that mycorrhiza significantly enhance water relations of citrus under the drought‐stress conditions studied.Keywords
This publication has 25 references indexed in Scilit:
- GREATER LEAF CONDUCTANCE OF WELL‐WATERED VA MYCORRHIZAL ROSE PLANTS IS NOT RELATED TO PHOSPHORUS NUTRITION*New Phytologist, 1986
- The Effect of VA Mycorrhizal Infection and Phosphorus Status on Sunflower Hydraulic and Stomatal PropertiesJournal of Experimental Botany, 1985
- INFLUENCE OF VESICULAR–ARBUSCULAR MYCORRHIZA ON THE HYDRAULIC CONDUCTIVITY OF ROOTS OF TWO CITRUS ROOTSTOCKSNew Phytologist, 1984
- EFFECTS OF TWO SPECIES OF V A MYCORRHIZAL FUNGI ON DROUGHT TOLERANCE OF WINTER WHEAT*New Phytologist, 1983
- EFFECT OF DROUGHT STRESS AND VESICULAR–ARBUSCULAR MYCORRHIZA ON CITRUS TRANSPIRATION AND HYDRAULIC CONDUCTIVITY OF ROOTS*New Phytologist, 1983
- Increased drought tolerance of mycorrhizal onion plants caused by improved phosphorus nutritionPlanta, 1982
- INFLUENCE OF VESICULAR‐ARBUSCULAR MYCORRHIZAE ON WATER MOVEMENT THROUGH BOUTELOUA GRACILIS (H.B.K.) LAG EX STEUD*New Phytologist, 1982
- THE INFLUENCE OF VESICULAR‐ARBUSCULAR MYCORRHIZA ON GROWTH AND WATER RELATIONS OF RED CLOVERNew Phytologist, 1981
- Effects of Abscisic Acid on the Hydraulic Conductance of and the Total Ion Transport through Phaseolus Root SystemsPlant Physiology, 1981
- Effect of Abscisic Acid on Root Hydraulic ConductivityPlant Physiology, 1979