Findings in forestry reported from A.N. Callister and co-researchers.

"Concentrations of solutes, and thus leaf osmotic potential (Psi(pi)), often increase when plants are subject to drought or sub-zero (frost) temperatures. We measured Psi(pi) and concentrations of individual solutes in leaves of 3-year-old Eucalyptus camaldulensis Dehn., E. globulus Labill., E. grandis W. Hill ex Maid. and 29 hybrid clones on a Site Subjected to both summer drought and winter frost," researchers in Australia report.

"We sought to characterize seasonal and genetic variations in Psi(pi) and to determine whether Psi(pi) or leaf turgor is related to bole Volume increment. Leaf osmotic potential at full turgor (Psi(pi(100))) was 0.7 MPa more negative in …