Effect of soybean plant growth on spore production byGlomus mosseae |
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| Authors: | V D Luedders D E Carling M F Brown |
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| Institution: | (1) Agricultural Research, Department of Agronomy, U.S. Department of Agriculture, Science and Education Administration, 65211 Columbia, MO;(2) Department of Plant Pathology, University of Missouri, 65211 Columbia, MO |
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| Abstract: | Plants of two soybean cultivars infected withGlomus mosseae were physiologically stressed by top removal and were harvested at seven bi-weekly intervals. Removing tops stopped root growth, stimulated branching, delayed plant growth stages by approximately two weeks, but did not affect spore production. Spore numbers were significantly related only to time of harvest. Pot variation in spore number was not significantly correlated with infection percentage or root dry weight. Harvest, cultivar, and cutting effects were highly significant for root and shoot weights and root/shoot ratios.Approved by the Director as a contribution from the Missouri Agricultural Experiment Station (Journal Series No. 8123). |
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| Keywords: | Glycine max (L ) Merr Growth stage Roots Shoots Shoot removal |
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