Tolerance of Some Grapevine Cultivars to Salinity and Calcium Carbonate in the Soil

摘要

During 2013 and 2014 seasons transplants of four grapevine cvs Flame seedless, Ruby seedless, crimson seedless and Superior were subjected to salinity at 0.05 to 0.4% and calcium carbonate at 2.5 to 20% in the soil. The target was detecting the tolerance of these grapevine cvs to salinity and lime in the soil. Transplants of grapevine cv Flame seedless and Ruby seedless recorded the highest values of growth and root characters, leaf relative turgidity, leaf succulence grade, pigments, total carbohydrates, total soluble sugars and uptake of N, P and K and the lowest values of and uptake of Ca, Na and Cl. Increasing concentrations of salinity from 0.0 to.4% and calcium carbonate from 0.0 to 20% was followed by reducing all parameters except soluble sugars, and uptake of Ca, Na and Cl. Salinity had injurious effects on grapevine transplants than calcium carbonate. Based on the highest values of growth and roots as well as leaf relative turgidity and leaf succulence grade, Flame seedless grapevine cv was more tolerant to salinity and lime in the soil, since it tolerated salinity till 0.2% and lime till 10% followed by Ruby seedless that tolerated 0.1% salinity and 5% lime. Subjecting the transplants of all the investigated grapevine cvs to salinity at 0.4% and lime at 20% resulted in a great damage on the transplants.