THE INFLUENCE OF LIGHT-INTENSITY AND ARTIFICIALLY EXTENDED PHOTOPERIOD UPON INFECTION AND SPORULATION OF GLOMUS-FASCICULATUS ON SUDAN GRASS AND ON ROOT EXUDATION OF SUDAN GRASS
THE INFLUENCE OF LIGHT-INTENSITY AND ARTIFICIALLY EXTENDED PHOTOPERIOD UPON INFECTION AND SPORULATION OF GLOMUS-FASCICULATUS ON SUDAN GRASS AND ON ROOT EXUDATION OF SUDAN GRASS
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DOI:
10.1111/j.1469-8137.1982.tb03375.x
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发表时间:
1982-01-01
期刊:
影响因子:
9.4
通讯作者:
MENGE, JA
中科院分区:
文献类型:
--
作者:
FERGUSON, JJ;MENGE, JA
Mycorrhizal inoculum of G. fasciculatus, 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 vapor or metal halide lamps of high intensity. Apparently, the level of sugars, but not amino acids, in root exudates from 2-mo.-old sudan grass plants was correlated with the spore production of G. fasciculatus. Apparently, growing sudan grass at greater light intensities and under extended photoperiods will increase the quantity and quality of commercial G. fasciculatus inoculum. [Vesicular-arbuscular mycorrhizal (VAM) fungi have been shown to benefit the growth and yield of many agricultural crops, especially in fumigated soil.].