Abstract
Seeds of two wheats 'Langdon (tetraploid) and 'Chinese Spring' (hexaploid) were grown at different salinities (NaCl) in hydroponic culture under controlled conditions. The growth and foliar ionic concentrations were measured after gradual salination of the growth medium. The results indicated that with an increase in the age of seedlings an increase in Na + and Cl: and a decrease in K+ occurred in both the wheats at 75, 150 or 225 mol m-3 NaCllevel. 'Chinese Spring', however, was capable of maintaining lower Na +, Cl and osmotic pressure than 'Langdon'. At 150 mol m-3 NaCl, recovery in shoot growth was observed in 'Chinese spring' in the last harvest when seedlings were 23 days old. At the highest salinity (225 mol m-3 NaCI), 'Chinese Spring' seedlings showed no growth after the seedlings were 15 days old and a similar trend existed in 'Langdon'. The presence of 'OO'genome in 'Chinese Spring' and its implications on the exclusion from the shoots are discussed

Shams had Hussain Shah. (1992) EFFECT OF DIFFERENT SALINITIES ON SUCCESSIVE GROWfH AND IONIC COMPOSITION OF TETRA- AND HEXAPLOID WHEATS, , Volume 29, Issue 3.
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