Response of lettuce to pre- and post-transplant phosphorus and pre-transplant inoculation with a VA-mycorrhizal fungus |
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Authors: | D. Waterer R. Coltman |
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Affiliation: | (1) Department of Horticulture, University of Hawaii, 96822 Honolulu, HI, USA;(2) Present address: Horticulture Dept., University of Saskatchewan, S7N OWO, Canada |
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Abstract: | Pre-transplant inoculation of lettuce (Lactuca sativa L.) seedlings with the vesicular-arbuscular mycorrhizal fungusGlomus aggregatum (Smith and Schenck emend. Koske) increased P uptake and dry matter yields after transplanting into soil when the concentration of P in the soil solution was 0.02 mg L–1 but had little affect in soil with 0.30 mg L–1 solution P. Tissue P concentrations and dry matter yields after transplanting were increased by supplying adequate P prior to transplanting. Adequate levels of pre-transplant P appeared to be more important than maximum mycorrhizal infection of transplants for promoting post-transplant growth of the fast maturing lettuce crop.Journal Series No. 0000 of the Hawaii Institute of Tropical Agriculture and Human Resources. |
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Keywords: | Glomus aggregatum Lactuca sativa vesicular-arbuscular mycorrhizae |
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