1Agricultural University of Tirana, Faculty of Agriculture and Environment, Department of Horticulture and Landscape Architecture, Kodër Kamëz 1029, Tirana, Albania
2Polis University, Faculty of Urban Planning and Environmental Management (FUPEM), Department of Environment, Tirana, Albania
3University College “Qiriazi”, Street “Taulantet”, near Agricultural University of Tirana, Albania
*Corresponding author e-mail: firstname.lastname@example.org
Study for the tolerance of antiphylloxeric rootstocks to the high salt (sodium chloride) concentrations in the soil, was carried out during three consecutive years (2014-2016), at the greenhouse of the Experimental Base of Agricultural University of Tirana, in Valias. There were used four the most widely grown and used American antiphylloxeric rootstocks in Albanian nurseries and vineyards, such as 1103P (Vitis Berlandieri x Vitis Rupestris), 140Ru (Vitis Berlandieri x Vitis Rupestris), Kober5BB (Vitis Berlandieri x Vitis Riparia) dhe SO4 (Vitis Berlandieri x Vitis Riparia). Six NaCl concentrations (treatments) [control (normal tap water), 2000, 4000, 6000, 8000, and 10000 ppm] with five pots with 2 cuttings each for replication, for each rootstock, were used. There were accounted and evaluated the number of survived plants and the degree of shriveling and necrosis of leaves and shoots of all treatments for all rootstocks. The lowest number of survived plants was observed for SO4 and Kober 5BB treated with 10000 ppm NaCl, while the highest number was observed for control and 2000 ppm NaCl. The observed number of survived vines for all treatments was 94.4% for 1103P, 70% for 140Ru, 57.2% for Kober 5BB, and 47.2% for SO4. Observed differences between rootstocks come from specific rootstock’s metabolism characters and genotypes. Based on the ampelographic assessment and evaluation levels resulting from Code 402 of OIV (2001), was found that rootstock 1103P was able to withstand the salinity level in the pot soil up to 0.87% NaCl (13.63 dS/m), 140Ru up to 0.75% NaCl (11.78 dS/m), Kober5BB, up to 0.53% NaCl (8.41 dS/m), while SO4 vines resisted up to 0.35% NaCl (4.82 dS/m). Based on the OIV Code 402 (evaluation levels 1-9), rootstock SO4 was shown to be more sensitive and less resistant to sodium chloride concentration compare to 1103P, 140Ru and Kober 5BB. The observed results were statistically confirmed by Anova (p≤0.01) (F = 33 > Fcrit = 4.5556 and P-value = 1.4E-07 = 1.4/107 < α = 0.01, while, for rootstocks, the value of statistical indicator F = 16.25 > Fcrit = 5.4169 and P-value = 0.0005768 < α = 0.01.
Keywords: 140Ru, Kober 5BB, SO4, concentration, rootstock, sodium chloride (NaCl), tolerance.