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Effects of Light on Root Growth, Nodulation, and Apogeotropism of Zamia pumila L. Seedlings in Sterile Culture
American Journal of Botany
Vol. 69, No. 2 (Feb., 1982), pp. 298-305
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2443017
Page Count: 8
You can always find the topics here!Topics: Plant roots, Nodulation, Seedlings, Root growth, Plants, Luminous intensity, Root nodules, Embryos, Symbiosis, Nodules
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Secondary root nodulation and apogeotropism of Zamia pumila L seedlings grown axenically on modified White's minerals with 2% sucrose at pH 5.7 was caused by light. Light also inhibited primary and secondary root elongation as well as secondary root production. Light-induced growth inhibition and nodulation were greatest at high light intensities. Apogeotropism was more frequent at low light intensities.
American Journal of Botany © 1982 Botanical Society of America, Inc.