That plants actively circulate water can be demonstrated by a large deciduous shade tree. Not much rain falls directly under its leaves. The soil is drier. Yet grasses, flowers and shrubs grow there. Clearly, they are obtaining water and nutrients from the tree roots.
Much work remains to be done, including what triggers the mechanism and how it works.
It would seem unlikely, but so was the whole idea of plants exuding water through its roots. Some effects of the research seem apparent, however. To achieve maximum yields, moisture and fertilizer must reach the new root growth below the earth, rather than simply be spread on the surface or around the stalk. Cultivation and aeration appear to be the key to accomplishing that. An example may be found in a commonly-used process for speeding the growth of a sapling into a shade tree.