Effects of Ca++ on plant sensitivity to high NaCl concentrations
SummaryNaCl reduced growth ofHordeum vulgare much more at low than at high nutrient, due solely to the Ca++-status of the medium.
Counteraction of NaCl with CaCl2 or KCl on pigment, saccharide and mineral contents in wheat
NaCl salinity affected growth, the contents of chlorophyll, carotenoids, saccharides and some minerals (Na, K, Ca, Mg, P) in wheat (Triticum vulgaris L.) plants. Irrigation of soil with CaCl2 or KCl greatly ameliorated the adverse effects of NaCl salinity. This counteraction was associated with an increase in contents of saccharides, proteins and Ca, Mg and P which might explain their role in osmotic adjustment.
Effects of Several Osmotic Substrates on the Water Relationships of Tomato
Osmotic substrates, comprising 5· and lO·atm concentrations of potassium nitrate, sodium chloride, mannitol, and sucrose were addEld to standard culture solutions in order to determine the effect on relative turgidity, DPD, osmotic poten. tial, transpiration, and growth of tomato plants. 14C-labelled mannitol and 38CI-labelled sodium chloride were incorporated into the high-concentration treatments to provide additional information on solute absorption.