In this article:

Rooted cuttings of grapevines were grown under glasshouse conditions and supplied with dilute nutrient solution containing either 0 or 90mM of added NaCl.

Growth and photosynthetic responses to salt treatment and subsequent recovery were followed over 80 days. Shoot growth and photosynthesis were reduced by salt treatment.

Vines showed remarkable adaption to salinity insofar as leaves maintained positive turgor despite leaf Cl- concentrations exceeding 300mM, implying osmotic adjustment.

Cessation of salt treatment led to an immediate decrease in leaf Cl-, a promotion of shoot growth and a progressive recovery in photosynthesis accompanied by reduction in both stomatal and internal resistances.

New shoots formed subsequent to stress relief are not a prerequisite for Cl- retranslocation from mature leaves as decapitation at time of stress relief did not prevent attenuation of leaf Cl- or recovery in photosynthesis.

An Analysis of Photosynthetic Response to Salt Treatment in Vitis Vinifera

1981, Australian Journal of Plant Physiology, vol 8, pages 359-74

csiro 557

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