Ii. Ivanov et al., The effect of local application of fertilizer on the content of cytokininsin the xylem sap of maize, BIOL PLANT, 41(4), 1998, pp. 587-590
Cytokinin content in xylem sap was higher in plants grown under local suppl
y of fertilizers as compared to those grown under homogenous distribution o
f nutrients in soil. The separate assay of cytokinins in xylem exudate from
split root system showed that roots, which were in contact with fertilizer
mainly contributed to cytokinins transported from roots to shoots.