Water relations of rough lemon (Citrus jambhiri Lush.) citrus seedlings infected withFusarium solani |
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| Authors: | S Nemec J Syversten Y Levy |
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| Institution: | (1) U. S. Horticultural Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, 32803 Orlando, FL, USA;(2) Citrus Research and Education Center, University of Florida, 33850 Lake Alfred, FL, USA;(3) Gilat Regional Experiment Station, Israel Ministry of Agriculture, Mobile Post Negev, Israel |
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| Abstract: | Summary Rough lemon citrus seedlings were inoculated withFusarium solani and evaluated for changes in water relations of leaves, stems, and roots. Inoculated seedlings had decreased leaf stomatal
conductance, lower leaf water potential, lower water content, and higher leaf osmotic values compared to healthy plants. Visible
wilt symptoms occurred as early as 24 h after inoculation. Transpiration and root conductivity were lower in diseased plants
but stem conductivity in diseased plants did not differ from the control. Thus, wilting appears to be due to the inability
of roots to supply water to the leaves. |
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| Keywords: | Drought-stress Fusarium solani Root-rot Fungi Rough lemon Rootstock |
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