Chemical composition of bleeding xylem sap collected during bud breaking was determined
in five woody species belonging to four families. Amino acids were quantified by HPLC …

The composition of xylem sap and exudate from stem incisions of Nicotiana glauca Grah.
was compared in detail. Exudation from stem incisions occurred over a 5 min period in …

Xylem exudate was collected from pruned spurs of Vitis rotundifolia Michx. Noble and Vitis
hybrid Suwannee on three dates during late winter and spring in order to determine the …

A study of the chemical composition and charge balance was made of bleeding xylem sap
collected from excised one-year-old extension shoots of healthy, Mn-deficient, Mn-toxic and …

Positive root pressure in Vitis rotundifolia Michx. cv. Noble was employed to quantify diurnal
and temporal changes in the chemical profile of xylem exudate. Xylem fluid osmolarity (7.2 …

On October 10, 1974, sieve tube exudate samples were collected from a small number of 16-
20 years old Quercus rubra trees growing in the woods near Lunteren. The method of …

In early spring, just prior to leaf break, there were substantial gradients in the concentration
of many solutes in xylem sap collected by vacuum extraction from shoots of different ages …

The capacity of poplar (P. tremula x P. alba, clone INRA 717 1/B4) to respond to changes in
the nutrient supply with modifications in the xylem exudate collected after decapitation was …

Three methods of sampling xylem sap of maize roots were compared: sap bleeding from the
stem cut just above the ground; sap bleeding from the cut tops of roots still undisturbed in the …

A method of collecting the xylem sap from tea plants in quantities sufficient for analysis is
described. Organic nitrogenous compounds accounted for most of the nitrogen present in …