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Fruit Crops Departments, University of Florida, Gainesville, Florida 32611, U.S.A.
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THE INFLUENCE OF LIGHT INTENSITY AND ARTIFICALLY EXTENDED PHOTOPERIOD UPON INFECTION AND SPORULATION OF GLOMUS FASCICULATUS ON SUDAN GRASS AND ON ROOT EXUDATION OF SUDAN GRASS
Article first published online: 2 MAY 2006
DOI: 10.1111/j.1469-8137.1982.tb03375.x
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How to Cite
FERGUSON, J. J. and MENGE, J. A. (1982), THE INFLUENCE OF LIGHT INTENSITY AND ARTIFICALLY EXTENDED PHOTOPERIOD UPON INFECTION AND SPORULATION OF GLOMUS FASCICULATUS ON SUDAN GRASS AND ON ROOT EXUDATION OF SUDAN GRASS. New Phytologist, 92: 183–191. doi: 10.1111/j.1469-8137.1982.tb03375.x
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Fruit Crops Departments, University of Florida, Gainesville, Florida 32611, U.S.A.
Publication History
- Issue published online: 2 MAY 2006
- Article first published online: 2 MAY 2006
- (Accepted 20 May 1982)
- Abstract
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SUMMARY
Mycorrhizal inoculum of Glomus faciculatus, as measured by root infection and sporulation on sudan grass, increased with increasing light intensity. Compared to natural glasshouse daylight, spore numbers of G. fasciculatus also increased dramatically when mycorrhizal sudan grass was exposed to extended photoperiods with mercury vapour or metal halide lamps of high intensity. Results from both light experiments indicate that the level of sugars, but not amino acids, in root exudates from 2-month-old sudan grass plants was correlated with the spore production of G. fasciculatus. It appears that growing sudan grass at greater light intensities and under extended photoperiods will increase the quantity and quality of commercial G. fasciculatus inoculum.