Abstract
In order to investigate a possible remobilization of boron, tomato plants were first exposed to excessive supplies of B and thereafter transferred to B-free nutrient solutions. Almost all the gain of top biomass after this transfer consisted of the growth of pre-existing immature leaves. Little new growth occurred before severe B deficiency became apparent. Boron was moved out of stems, but there was no evidence for a transfer of B from leaf blades into new tissues at the top.
Although the B concentration in roots was low after the transfer to the B-free solution, there was a manyfold increase in root biomass. Consequently, the B content of the entire root system increased. It is concluded that little B was remobilized and transported into plant tops, whereas a small but adequate amount was remobilized and transported to the roots.
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© 1993 Springer Science+Business Media Dordrecht
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Oertli, J.J. (1993). The Mobility of Boron in Plants. In: Barrow, N.J. (eds) Plant Nutrition — from Genetic Engineering to Field Practice. Developments in Plant and Soil Sciences, vol 54. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1880-4_80
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DOI: https://doi.org/10.1007/978-94-011-1880-4_80
Publisher Name: Springer, Dordrecht
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